├── .formatter.exs ├── .github ├── dependabot.yml ├── install_parity.sh └── workflows │ └── test.yml ├── .gitignore ├── LICENSE ├── README.md ├── assets └── exw3_logo.jpg ├── config └── config.exs ├── docker-compose.yml ├── lib ├── exw3.ex └── exw3 │ ├── abi.ex │ ├── address.ex │ ├── client.ex │ ├── contract.ex │ ├── normalize.ex │ ├── rpc.ex │ └── utils.ex ├── mix.exs ├── mix.lock ├── parity.sh └── test ├── examples ├── build │ ├── AddressTester.abi │ ├── AddressTester.bin │ ├── ArrayTester.abi │ ├── ArrayTester.bin │ ├── Complex.abi │ ├── Complex.bin │ ├── EventTester.abi │ ├── EventTester.bin │ ├── SimpleStorage.abi │ └── SimpleStorage.bin └── contracts │ ├── AddressTester.sol │ ├── ArrayTester.sol │ ├── Complex.sol │ ├── EventTester.sol │ └── SimpleStorage.sol ├── exw3 ├── abi_test.exs ├── address_test.exs ├── client_test.exs ├── contract_test.exs ├── rpc_test.exs └── utils_test.exs ├── exw3_test.exs └── test_helper.exs /.formatter.exs: -------------------------------------------------------------------------------- 1 | # Used by "mix format" 2 | [ 3 | inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"] 4 | ] 5 | -------------------------------------------------------------------------------- /.github/dependabot.yml: -------------------------------------------------------------------------------- 1 | version: 2 2 | updates: 3 | - package-ecosystem: mix 4 | directory: "/" 5 | schedule: 6 | interval: monthly 7 | open-pull-requests-limit: 10 8 | - package-ecosystem: github-actions 9 | directory: "/" 10 | schedule: 11 | interval: monthly 12 | open-pull-requests-limit: 10 13 | -------------------------------------------------------------------------------- /.github/install_parity.sh: -------------------------------------------------------------------------------- 1 | # Install Parity blockchain tests on Github action 2 | echo > passfile # just to be safe 3 | 4 | wget https://releases.parity.io/ethereum/v2.7.2/x86_64-unknown-linux-gnu/parity 5 | 6 | chmod 755 ./parity 7 | echo > passfile 8 | 9 | ./parity --chain dev 2>&1 & 10 | 11 | PARITY_PID=$! 12 | sleep 10 13 | kill -9 $(lsof -t -i:8545) # cleanup old zombie instances 14 | -------------------------------------------------------------------------------- /.github/workflows/test.yml: -------------------------------------------------------------------------------- 1 | name: test 2 | 3 | on: 4 | push: 5 | branches: 6 | - master 7 | pull_request: 8 | branches: 9 | - '*' 10 | 11 | jobs: 12 | test: 13 | runs-on: ubuntu-latest 14 | name: Test OTP ${{matrix.otp}} / Elixir ${{matrix.elixir}} 15 | 16 | strategy: 17 | matrix: 18 | otp: [22.x, 23.x, 24.x] 19 | elixir: [1.10.x, 1.11.x, 1.12.x] 20 | 21 | steps: 22 | - uses: actions/checkout@v3 23 | 24 | - uses: erlef/setup-beam@v1.11 25 | with: 26 | otp-version: ${{matrix.otp}} 27 | elixir-version: ${{matrix.elixir}} 28 | 29 | - uses: actions-rs/toolchain@v1 30 | with: 31 | toolchain: stable 32 | 33 | - name: Cache Dependencies 34 | uses: actions/cache@v3.0.8 35 | with: 36 | path: | 37 | deps 38 | _build/dev 39 | _build/test 40 | key: elixir-cache-${{secrets.CACHE_VERSION}}-${{matrix.elixir}}-otp-${{matrix.otp}}-${{runner.os}}-${{hashFiles('mix.lock')}}-${{github.ref}} 41 | restore-keys: | 42 | elixir-cache-${{secrets.CACHE_VERSION}}-${{matrix.elixir}}-otp-${{matrix.otp}}-${{runner.os}}-${{hashFiles('mix.lock')}}- 43 | elixir-cache-${{secrets.CACHE_VERSION}}-${{matrix.elixir}}-otp-${{matrix.otp}}-${{runner.os}}- 44 | 45 | - name: Install Dependencies 46 | run: mix deps.get 47 | 48 | - name: Install Parity Blockchain 49 | run: .github/install_parity.sh 50 | 51 | - name: Run Parity Blockchain 52 | run: ./parity --chain dev --unlock=0x00a329c0648769a73afac7f9381e08fb43dbea72 --reseal-min-period 0 --password passfile & 53 | 54 | - name: Test 55 | run: mix test 56 | 57 | - name: Dialyzer 58 | run: mix dialyzer --halt-exit-status 59 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # The directory Mix will write compiled artifacts to. 2 | /_build/ 3 | 4 | # If you run "mix test --cover", coverage assets end up here. 5 | /cover/ 6 | 7 | # The directory Mix downloads your dependencies sources to. 8 | /deps/ 9 | 10 | # Where third-party dependencies like ExDoc output generated docs. 11 | /doc/ 12 | 13 | # Ignore .fetch files in case you like to edit your project deps locally. 14 | /.fetch 15 | 16 | # If the VM crashes, it generates a dump, let's ignore it too. 17 | erl_crash.dump 18 | 19 | # Also ignore archive artifacts (built via "mix archive.build"). 20 | *.ez 21 | 22 | # Ignore package tarball (built via "mix hex.build"). 23 | exw3-*.tar 24 | 25 | # Temporary files, for example, from tests. 26 | /tmp/ 27 | 28 | # Misc. 29 | .env* 30 | passfile 31 | docker/openethereum 32 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. Definitions. 8 | 9 | "License" shall mean the terms and conditions for use, reproduction, 10 | and distribution as defined by Sections 1 through 9 of this document. 11 | 12 | "Licensor" shall mean the copyright owner or entity authorized by 13 | the copyright owner that is granting the License. 14 | 15 | "Legal Entity" shall mean the union of the acting entity and all 16 | other entities that control, are controlled by, or are under common 17 | control with that entity. For the purposes of this definition, 18 | "control" means (i) the power, direct or indirect, to cause the 19 | direction or management of such entity, whether by contract or 20 | otherwise, or (ii) ownership of fifty percent (50%) or more of the 21 | outstanding shares, or (iii) beneficial ownership of such entity. 22 | 23 | "You" (or "Your") shall mean an individual or Legal Entity 24 | exercising permissions granted by this License. 25 | 26 | "Source" form shall mean the preferred form for making modifications, 27 | including but not limited to software source code, documentation 28 | source, and configuration files. 29 | 30 | "Object" form shall mean any form resulting from mechanical 31 | transformation or translation of a Source form, including but 32 | not limited to compiled object code, generated documentation, 33 | and conversions to other media types. 34 | 35 | "Work" shall mean the work of authorship, whether in Source or 36 | Object form, made available under the License, as indicated by a 37 | copyright notice that is included in or attached to the work 38 | (an example is provided in the Appendix below). 39 | 40 | "Derivative Works" shall mean any work, whether in Source or Object 41 | form, that is based on (or derived from) the Work and for which the 42 | editorial revisions, annotations, elaborations, or other modifications 43 | represent, as a whole, an original work of authorship. For the purposes 44 | of this License, Derivative Works shall not include works that remain 45 | separable from, or merely link (or bind by name) to the interfaces of, 46 | the Work and Derivative Works thereof. 47 | 48 | "Contribution" shall mean any work of authorship, including 49 | the original version of the Work and any modifications or additions 50 | to that Work or Derivative Works thereof, that is intentionally 51 | submitted to Licensor for inclusion in the Work by the copyright owner 52 | or by an individual or Legal Entity authorized to submit on behalf of 53 | the copyright owner. For the purposes of this definition, "submitted" 54 | means any form of electronic, verbal, or written communication sent 55 | to the Licensor or its representatives, including but not limited to 56 | communication on electronic mailing lists, source code control systems, 57 | and issue tracking systems that are managed by, or on behalf of, the 58 | Licensor for the purpose of discussing and improving the Work, but 59 | excluding communication that is conspicuously marked or otherwise 60 | designated in writing by the copyright owner as "Not a Contribution." 61 | 62 | "Contributor" shall mean Licensor and any individual or Legal Entity 63 | on behalf of whom a Contribution has been received by Licensor and 64 | subsequently incorporated within the Work. 65 | 66 | 2. Grant of Copyright License. Subject to the terms and conditions of 67 | this License, each Contributor hereby grants to You a perpetual, 68 | worldwide, non-exclusive, no-charge, royalty-free, irrevocable 69 | copyright license to reproduce, prepare Derivative Works of, 70 | publicly display, publicly perform, sublicense, and distribute the 71 | Work and such Derivative Works in Source or Object form. 72 | 73 | 3. Grant of Patent License. Subject to the terms and conditions of 74 | this License, each Contributor hereby grants to You a perpetual, 75 | worldwide, non-exclusive, no-charge, royalty-free, irrevocable 76 | (except as stated in this section) patent license to make, have made, 77 | use, offer to sell, sell, import, and otherwise transfer the Work, 78 | where such license applies only to those patent claims licensable 79 | by such Contributor that are necessarily infringed by their 80 | Contribution(s) alone or by combination of their Contribution(s) 81 | with the Work to which such Contribution(s) was submitted. If You 82 | institute patent litigation against any entity (including a 83 | cross-claim or counterclaim in a lawsuit) alleging that the Work 84 | or a Contribution incorporated within the Work constitutes direct 85 | or contributory patent infringement, then any patent licenses 86 | granted to You under this License for that Work shall terminate 87 | as of the date such litigation is filed. 88 | 89 | 4. Redistribution. You may reproduce and distribute copies of the 90 | Work or Derivative Works thereof in any medium, with or without 91 | modifications, and in Source or Object form, provided that You 92 | meet the following conditions: 93 | 94 | (a) You must give any other recipients of the Work or 95 | Derivative Works a copy of this License; and 96 | 97 | (b) You must cause any modified files to carry prominent notices 98 | stating that You changed the files; and 99 | 100 | (c) You must retain, in the Source form of any Derivative Works 101 | that You distribute, all copyright, patent, trademark, and 102 | attribution notices from the Source form of the Work, 103 | excluding those notices that do not pertain to any part of 104 | the Derivative Works; and 105 | 106 | (d) If the Work includes a "NOTICE" text file as part of its 107 | distribution, then any Derivative Works that You distribute must 108 | include a readable copy of the attribution notices contained 109 | within such NOTICE file, excluding those notices that do not 110 | pertain to any part of the Derivative Works, in at least one 111 | of the following places: within a NOTICE text file distributed 112 | as part of the Derivative Works; within the Source form or 113 | documentation, if provided along with the Derivative Works; or, 114 | within a display generated by the Derivative Works, if and 115 | wherever such third-party notices normally appear. The contents 116 | of the NOTICE file are for informational purposes only and 117 | do not modify the License. You may add Your own attribution 118 | notices within Derivative Works that You distribute, alongside 119 | or as an addendum to the NOTICE text from the Work, provided 120 | that such additional attribution notices cannot be construed 121 | as modifying the License. 122 | 123 | You may add Your own copyright statement to Your modifications and 124 | may provide additional or different license terms and conditions 125 | for use, reproduction, or distribution of Your modifications, or 126 | for any such Derivative Works as a whole, provided Your use, 127 | reproduction, and distribution of the Work otherwise complies with 128 | the conditions stated in this License. 129 | 130 | 5. Submission of Contributions. Unless You explicitly state otherwise, 131 | any Contribution intentionally submitted for inclusion in the Work 132 | by You to the Licensor shall be under the terms and conditions of 133 | this License, without any additional terms or conditions. 134 | Notwithstanding the above, nothing herein shall supersede or modify 135 | the terms of any separate license agreement you may have executed 136 | with Licensor regarding such Contributions. 137 | 138 | 6. Trademarks. This License does not grant permission to use the trade 139 | names, trademarks, service marks, or product names of the Licensor, 140 | except as required for reasonable and customary use in describing the 141 | origin of the Work and reproducing the content of the NOTICE file. 142 | 143 | 7. Disclaimer of Warranty. Unless required by applicable law or 144 | agreed to in writing, Licensor provides the Work (and each 145 | Contributor provides its Contributions) on an "AS IS" BASIS, 146 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 147 | implied, including, without limitation, any warranties or conditions 148 | of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A 149 | PARTICULAR PURPOSE. You are solely responsible for determining the 150 | appropriateness of using or redistributing the Work and assume any 151 | risks associated with Your exercise of permissions under this License. 152 | 153 | 8. Limitation of Liability. In no event and under no legal theory, 154 | whether in tort (including negligence), contract, or otherwise, 155 | unless required by applicable law (such as deliberate and grossly 156 | negligent acts) or agreed to in writing, shall any Contributor be 157 | liable to You for damages, including any direct, indirect, special, 158 | incidental, or consequential damages of any character arising as a 159 | result of this License or out of the use or inability to use the 160 | Work (including but not limited to damages for loss of goodwill, 161 | work stoppage, computer failure or malfunction, or any and all 162 | other commercial damages or losses), even if such Contributor 163 | has been advised of the possibility of such damages. 164 | 165 | 9. Accepting Warranty or Additional Liability. While redistributing 166 | the Work or Derivative Works thereof, You may choose to offer, 167 | and charge a fee for, acceptance of support, warranty, indemnity, 168 | or other liability obligations and/or rights consistent with this 169 | License. However, in accepting such obligations, You may act only 170 | on Your own behalf and on Your sole responsibility, not on behalf 171 | of any other Contributor, and only if You agree to indemnify, 172 | defend, and hold each Contributor harmless for any liability 173 | incurred by, or claims asserted against, such Contributor by reason 174 | of your accepting any such warranty or additional liability. 175 | 176 | END OF TERMS AND CONDITIONS 177 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # ExW3 2 | 3 | [![Build Status](https://github.com/hswick/exw3/workflows/test/badge.svg?branch=master)](https://github.com/hswick/exw3/actions?query=workflow%3Atest) 4 | [![Module Version](https://img.shields.io/hexpm/v/exw3.svg?style=flat)](https://hex.pm/packages/exw3) 5 | [![Hex Docs](https://img.shields.io/badge/hex-docs-lightgreen.svg?style=flat)](https://hexdocs.pm/exw3/) 6 | [![Total Download](https://img.shields.io/hexpm/dt/exw3.svg?style=flat)](https://hex.pm/packages/exw3) 7 | [![License](https://img.shields.io/hexpm/l/exw3.svg?style=flat)](https://github.com/hswick/exw3/blob/master/LICENSE) 8 | [![Last Updated](https://img.shields.io/github/last-commit/hswick/exw3.svg?style=flat)](https://github.com/hswick/exw3/commits/master) 9 | 10 |

11 | 12 |

13 | 14 | ## Installation 15 | 16 | The package can be installed by adding `:exw3` to your list of dependencies in `mix.exs`: 17 | 18 | ```elixir 19 | def deps do 20 | [ 21 | {:exw3, "~> 0.6"} 22 | ] 23 | end 24 | ``` 25 | 26 | ## Overview 27 | 28 | ExW3 is a wrapper around ethereumex to provide a high level, user friendly json rpc api. This library is focused on providing a handy abstraction for working with smart contracts, and any other relevant utilities. 29 | 30 | ## Usage 31 | 32 | Ensure you have an ethereum node to connect to at the specified url in your config. An easy local testnet to use is ganache-cli: 33 | 34 | ```bash 35 | $ ganache-cli 36 | ``` 37 | 38 | Or you can use parity: 39 | Install Parity, then run it with 40 | 41 | ```bash 42 | $ echo > passfile 43 | parity --chain dev --unlock=0x00a329c0648769a73afac7f9381e08fb43dbea72 --reseal-min-period 0 --password passfile 44 | ``` 45 | 46 | If Parity complains about password or missing account, try 47 | 48 | ```bash 49 | $ parity --chain dev --unlock=0x00a329c0648769a73afac7f9381e08fb43dbea72 50 | ``` 51 | 52 | ### HTTP 53 | 54 | To use Ethereumex's HttpClient simply set your config like this: 55 | 56 | ```elixir 57 | config :ethereumex, 58 | client_type: :http, 59 | url: "http://localhost:8545" 60 | ``` 61 | 62 | ### IPC 63 | 64 | If you want to use IpcClient set your config to something like this: 65 | 66 | ```elixir 67 | config :ethereumex, 68 | client_type: :ipc, 69 | ipc_path: "/.local/share/io.parity.ethereum/jsonrpc.ipc" 70 | ``` 71 | 72 | Provide an absolute path to the ipc socket provided by whatever Ethereum client you are running. You don't need to include the home directory, as that will be prepended to the path provided. 73 | 74 | **NOTE:** Use of IPC is recommended, as it is more secure and significantly faster. 75 | 76 | Currently, ExW3 supports a handful of JSON RPC commands. Primarily the ones that get used the most. If ExW3 doesn't provide a specific command, you can always use the [Ethereumex](https://github.com/exthereum/ethereumex) commands. 77 | 78 | Check out the [documentation](https://hexdocs.pm/exw3/ExW3.html) for more details of the API. 79 | 80 | ### Example 81 | 82 | ```elixir 83 | iex(1)> accounts = ExW3.accounts() 84 | ["0x00a329c0648769a73afac7f9381e08fb43dbea72"] 85 | iex(2)> ExW3.balance(Enum.at(accounts, 0)) 86 | 1606938044258990275541962092341162602522200978938292835291376 87 | iex(3)> ExW3.block_number() 88 | 1252 89 | iex(4)> simple_storage_abi = ExW3.Abi.load_abi("test/examples/build/SimpleStorage.abi") 90 | %{ 91 | "get" => %{ 92 | "constant" => true, 93 | "inputs" => [], 94 | "name" => "get", 95 | "outputs" => [%{"name" => "", "type" => "uint256"}], 96 | "payable" => false, 97 | "stateMutability" => "view", 98 | "type" => "function" 99 | }, 100 | "set" => %{ 101 | "constant" => false, 102 | "inputs" => [%{"name" => "_data", "type" => "uint256"}], 103 | "name" => "set", 104 | "outputs" => [], 105 | "payable" => false, 106 | "stateMutability" => "nonpayable", 107 | "type" => "function" 108 | } 109 | } 110 | iex(5)> ExW3.Contract.start_link 111 | {:ok, #PID<0.265.0>} 112 | iex(6)> ExW3.Contract.register(:SimpleStorage, abi: simple_storage_abi) 113 | :ok 114 | iex(7)> {:ok, address, tx_hash} = ExW3.Contract.deploy(:SimpleStorage, bin: ExW3.Abi.load_bin("test/examples/build/SimpleStorage.bin"), options: %{gas: 300_000, from: Enum.at(accounts, 0)}) 115 | {:ok, "0x22018c2bb98387a39e864cf784e76cb8971889a5", 116 | "0x4ea539048c01194476004ef69f407a10628bed64e88ee8f8b17b4d030d0e7cb7"} 117 | iex(8)> ExW3.Contract.at(:SimpleStorage, address) 118 | :ok 119 | iex(9)> ExW3.Contract.call(:SimpleStorage, :get) 120 | {:ok, 0} 121 | iex(10)> ExW3.Contract.send(:SimpleStorage, :set, [1], %{from: Enum.at(accounts, 0), gas: 50_000}) 122 | {:ok, "0x88838e84a401a1d6162290a1a765507c4a83f5e050658a83992a912f42149ca5"} 123 | iex(11)> ExW3.Contract.call(:SimpleStorage, :get) 124 | {:ok, 1} 125 | ``` 126 | 127 | ## Address Type 128 | 129 | If you are familiar with web3.js you may find the way ExW3 handles addresses unintuitive. ExW3's ABI encoder interprets the address type as an uint160. If you are using an address as an option to a transaction like `:from` or `:to` this will work as expected. However, if one of your smart contracts is expecting an address type for an input parameter then you will need to do this: 130 | 131 | ```elixir 132 | a = ExW3.Utils.hex_to_integer("0x88838e84a401a1d6162290a1a765507c4a83f5e050658a83992a912f42149ca5") 133 | ``` 134 | 135 | ## Events 136 | 137 | ExW3 allows the retrieval of event logs using filters or transaction receipts. In this example we will demonstrate a filter. Assume we have already deployed and registered a contract called EventTester. 138 | 139 | ```elixir 140 | # We can optionally specify extra parameters like `:fromBlock`, and `:toBlock` 141 | {:ok, filter_id} = ExW3.Contract.filter(:EventTester, "Simple", %{fromBlock: 42, toBlock: "latest"}) 142 | 143 | # After some point that we think there are some new changes 144 | {:ok, changes} = ExW3.Contract.get_filter_changes(filter_id) 145 | 146 | # We can then uninstall the filter after we are done using it 147 | ExW3.Contract.uninstall_filter(filter_id) 148 | ``` 149 | 150 | ## Indexed Events 151 | 152 | Ethereum allows a user to add topics to filters. This means the filter will only return events with the specific index parameters. For all of the extra options see [here](https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_newfilter) 153 | 154 | If you have written your event in Solidity like this: 155 | 156 | ``` 157 | event SimpleIndex(uint256 indexed num, bytes32 indexed data, uint256 otherNum); 158 | ``` 159 | 160 | You can add a filter on which logs will be returned back to the RPC client based on the indexed fields. 161 | 162 | ExW3 allows for 2 ways of specifying these parameters (`:topics`) in two ways. The first, and probably more preferred way, is with a map: 163 | 164 | ```elixir 165 | indexed_filter_id = ExW3.Contract.filter( 166 | :EventTester, 167 | "SimpleIndex", 168 | %{ 169 | topics: %{num: 46, data: "Hello, World!"}, 170 | } 171 | ) 172 | ``` 173 | 174 | The other option is a list (mapped version is an abstraction over this). The downside here is this is order dependent. Any values you don't want to specify must be represented with a `nil`. This approach has been included because it is the implementation of the JSON RPC spec. 175 | 176 | ```elixir 177 | indexed_filter_id = ExW3.Contract.filter( 178 | :EventTester, 179 | "SimpleIndex", 180 | %{ 181 | topics: [nil, "Hello, World!"] 182 | } 183 | ) 184 | ``` 185 | 186 | Here we are skipping the `num` topic, and only filtering on the `data` parameter. 187 | 188 | NOTE!!! These two approaches are mutually exclusive, and for almost all cases you should prefer the map. 189 | 190 | ## Continuous Event Handling 191 | 192 | In many cases, you will want some process to continuously listen for events. We can implement this functionality using a recursive function. Since Elixir uses tail call optimization, we won't have to worry about blowing up the stack. 193 | 194 | ```elixir 195 | def listen_for_event do 196 | {:ok, changes} = ExW3.Contract.get_filter_changes(filter_id) # Get our changes from the blockchain 197 | handle_changes(changes) # Some function to deal with the data. Good place to use pattern matching. 198 | :timer.sleep(1000) # Some delay in milliseconds. Recommended to save bandwidth, and not spam. 199 | listen_for_event() # Recurse 200 | end 201 | ``` 202 | 203 | # Compiling Solidity 204 | 205 | To compile the test solidity contracts after making a change run this command: 206 | 207 | ```bash 208 | $ solc --abi --bin --overwrite -o test/examples/build test/examples/contracts/*.sol 209 | ``` 210 | 211 | # Contributing 212 | 213 | ## Test 214 | 215 | The full test suite requires a running blockchain. You can run your own or start `openethereum` with `docker-compose`. 216 | 217 | ```bash 218 | $ docker-compose up 219 | $ mix test 220 | ``` 221 | 222 | ## Copyright and License 223 | 224 | Copyright (c) 2018 Harley Swick 225 | 226 | Licensed under the Apache License, Version 2.0 (the "License"); 227 | you may not use this file except in compliance with the License. 228 | You may obtain a copy of the License at [https://www.apache.org/licenses/LICENSE-2.0](https://www.apache.org/licenses/LICENSE-2.0) 229 | 230 | Unless required by applicable law or agreed to in writing, software 231 | distributed under the License is distributed on an "AS IS" BASIS, 232 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 233 | See the License for the specific language governing permissions and 234 | limitations under the License. 235 | -------------------------------------------------------------------------------- /assets/exw3_logo.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/hswick/exw3/17074b213e8affcfddcef4ddc1179f16845ecb7a/assets/exw3_logo.jpg -------------------------------------------------------------------------------- /config/config.exs: -------------------------------------------------------------------------------- 1 | # This file is responsible for configuring your application 2 | # and its dependencies with the aid of the Mix.Config module. 3 | use Mix.Config 4 | 5 | # This configuration is loaded before any dependency and is restricted 6 | # to this project. If another project depends on this project, this 7 | # file won't be loaded nor affect the parent project. For this reason, 8 | # if you want to provide default values for your application for third- 9 | # party users, it should be done in your mix.exs file. 10 | 11 | # Sample configuration: 12 | # 13 | # config :logger, 14 | # level: :info 15 | # 16 | # config :logger, :console, 17 | # format: "$date $time [$level] $metadata$message\n", 18 | # metadata: [:user_id] 19 | 20 | # It is also possible to import configuration files, relative to this 21 | # directory. For example, you can emulate configuration per environment 22 | # by uncommenting the line below and defining dev.exs, test.exs and such. 23 | # Configuration from the imported file will override the ones defined 24 | # here (which is why it is important to import them last). 25 | # 26 | # import_config "#{Mix.env}.exs" 27 | config :ethereumex, 28 | client_type: :ipc, 29 | url: "http://localhost:8545", 30 | ipc_path: 31 | System.get_env( 32 | "IPC_PATH", 33 | "#{System.user_home!()}/.local/share/io.parity.ethereum/jsonrpc.ipc" 34 | ) 35 | -------------------------------------------------------------------------------- /docker-compose.yml: -------------------------------------------------------------------------------- 1 | version: '3.8' 2 | 3 | services: 4 | openethereum: 5 | image: openethereum/openethereum:v3.3.0 6 | command: '--chain=dev --unlock=0x00a329c0648769a73afac7f9381e08fb43dbea72 --password=/home/openethereum/.local/share/openethereum/passfile --jsonrpc-interface=0.0.0.0' 7 | ports: 8 | - '8545:8545' 9 | - '8546:8546' 10 | volumes: 11 | - ./docker:/home/openethereum/.local/share 12 | -------------------------------------------------------------------------------- /lib/exw3.ex: -------------------------------------------------------------------------------- 1 | defmodule ExW3 do 2 | defdelegate accounts(opts \\ []), to: ExW3.Rpc 3 | defdelegate block_number(opts \\ []), to: ExW3.Rpc 4 | defdelegate balance(account, opts \\ []), to: ExW3.Rpc 5 | defdelegate tx_receipt(tx_hash), to: ExW3.Rpc 6 | defdelegate block(block_number), to: ExW3.Rpc 7 | defdelegate new_filter(map), to: ExW3.Rpc 8 | defdelegate get_filter_changes(filter_id), to: ExW3.Rpc 9 | defdelegate get_logs(filter, opts \\ []), to: ExW3.Rpc 10 | defdelegate uninstall_filter(filter_id), to: ExW3.Rpc 11 | defdelegate mine(num_blocks \\ 1), to: ExW3.Rpc 12 | defdelegate personal_list_accounts(opts \\ []), to: ExW3.Rpc 13 | defdelegate personal_new_account(password, opts \\ []), to: ExW3.Rpc 14 | defdelegate personal_unlock_account(params, opts \\ []), to: ExW3.Rpc 15 | defdelegate personal_send_transaction(param_map, passphrase, opts \\ []), to: ExW3.Rpc 16 | defdelegate personal_sign_transaction(param_map, passphrase, opts \\ []), to: ExW3.Rpc 17 | defdelegate personal_sign(data, address, passphrase, opts \\ []), to: ExW3.Rpc 18 | defdelegate personal_ec_recover(data0, data1, opts \\ []), to: ExW3.Rpc 19 | defdelegate eth_sign(data0, data1, opts \\ []), to: ExW3.Rpc 20 | defdelegate eth_call(arguments), to: ExW3.Rpc 21 | defdelegate eth_send(arguments), to: ExW3.Rpc 22 | end 23 | -------------------------------------------------------------------------------- /lib/exw3/abi.ex: -------------------------------------------------------------------------------- 1 | defmodule ExW3.Abi do 2 | @doc "Decodes event based on given data and provided signature" 3 | @spec decode_event(binary(), binary()) :: any() 4 | def decode_event(data, signature) do 5 | formatted_data = 6 | data 7 | |> String.slice(2..-1) 8 | |> Base.decode16!(case: :lower) 9 | 10 | fs = ABI.FunctionSelector.decode(signature) 11 | 12 | ABI.TypeDecoder.decode(formatted_data, fs) 13 | end 14 | 15 | @doc "Loads the abi at the file path and reformats it to a map" 16 | @spec load_abi(binary()) :: list() | {:error, atom()} 17 | def load_abi(file_path) do 18 | with {:ok, cwd} <- File.cwd(), 19 | {:ok, abi} <- File.read(Path.join([cwd, file_path])) do 20 | reformat_abi(Jason.decode!(abi)) 21 | end 22 | end 23 | 24 | @doc "Loads the bin ar the file path" 25 | @spec load_bin(binary()) :: binary() 26 | def load_bin(file_path) do 27 | with {:ok, cwd} <- File.cwd(), 28 | {:ok, bin} <- File.read(Path.join([cwd, file_path])) do 29 | bin 30 | end 31 | end 32 | 33 | @doc "Decodes data based on given type signature" 34 | @spec decode_data(binary(), binary()) :: any() 35 | def decode_data(types_signature, data) do 36 | {:ok, trim_data} = String.slice(data, 2..String.length(data)) |> Base.decode16(case: :lower) 37 | 38 | ABI.decode(types_signature, trim_data) |> List.first() 39 | end 40 | 41 | @doc "Decodes output based on specified functions return signature" 42 | @spec decode_output(map(), binary(), binary()) :: list() 43 | def decode_output(abi, name, output) do 44 | {:ok, trim_output} = 45 | String.slice(output, 2..String.length(output)) |> Base.decode16(case: :lower) 46 | 47 | output_types = Enum.map(abi[name]["outputs"], fn x -> x["type"] end) 48 | types_signature = Enum.join(["(", Enum.join(output_types, ","), ")"]) 49 | output_signature = "#{name}(#{types_signature})" 50 | 51 | outputs = 52 | ABI.decode(output_signature, trim_output) 53 | |> List.first() 54 | |> Tuple.to_list() 55 | 56 | outputs 57 | end 58 | 59 | @doc "Returns the type signature of a given function" 60 | @spec types_signature(map(), binary()) :: binary() 61 | def types_signature(abi, name) do 62 | input_types = Enum.map(abi[name]["inputs"], fn x -> x["type"] end) 63 | types_signature = Enum.join(["(", Enum.join(input_types, ","), ")"]) 64 | types_signature 65 | end 66 | 67 | @doc "Returns the 4 character method id based on the hash of the method signature" 68 | @spec method_signature(map(), binary()) :: binary() 69 | def method_signature(abi, name) do 70 | if abi[name] do 71 | input_signature = ExKeccak.hash_256("#{name}#{types_signature(abi, name)}") 72 | 73 | # Take first four bytes 74 | <> = input_signature 75 | init 76 | else 77 | raise "#{name} method not found in the given abi" 78 | end 79 | end 80 | 81 | @doc "Encodes data into Ethereum hex string based on types signature" 82 | @spec encode_data(binary(), list()) :: binary() 83 | def encode_data(types_signature, data) do 84 | ABI.TypeEncoder.encode_raw( 85 | [List.to_tuple(data)], 86 | ABI.FunctionSelector.decode_raw(types_signature) 87 | ) 88 | end 89 | 90 | @doc "Encodes list of options and returns them as a map" 91 | @spec encode_options(map(), list()) :: map() 92 | def encode_options(options, keys) do 93 | keys 94 | |> Enum.filter(fn option -> 95 | Map.has_key?(options, option) 96 | end) 97 | |> Enum.map(fn option -> 98 | {option, encode_option(options[option])} 99 | end) 100 | |> Enum.into(%{}) 101 | end 102 | 103 | @doc "Encodes options into Ethereum JSON RPC hex string" 104 | @spec encode_option(integer()) :: binary() 105 | def encode_option(0), do: "0x0" 106 | 107 | def encode_option(nil), do: nil 108 | 109 | def encode_option(value) do 110 | "0x" <> 111 | (value 112 | |> :binary.encode_unsigned() 113 | |> Base.encode16(case: :lower) 114 | |> String.trim_leading("0")) 115 | end 116 | 117 | @doc "Encodes data and appends it to the encoded method id" 118 | @spec encode_method_call(map(), binary(), list()) :: binary() 119 | def encode_method_call(abi, name, input) do 120 | encoded_method_call = 121 | method_signature(abi, name) <> encode_data(types_signature(abi, name), input) 122 | 123 | encoded_method_call |> Base.encode16(case: :lower) 124 | end 125 | 126 | @doc "Encodes input from a method call based on function signature" 127 | @spec encode_input(map(), binary(), list()) :: binary() 128 | def encode_input(abi, name, input) do 129 | if abi[name]["inputs"] do 130 | input_types = Enum.map(abi[name]["inputs"], fn x -> x["type"] end) 131 | types_signature = Enum.join(["(", Enum.join(input_types, ","), ")"]) 132 | input_signature = ExKeccak.hash_256("#{name}#{types_signature}") 133 | 134 | # Take first four bytes 135 | <> = input_signature 136 | 137 | encoded_input = 138 | init <> 139 | ABI.TypeEncoder.encode_raw( 140 | [List.to_tuple(input)], 141 | ABI.FunctionSelector.decode_raw(types_signature) 142 | ) 143 | 144 | encoded_input |> Base.encode16(case: :lower) 145 | else 146 | raise "#{name} method not found with the given abi" 147 | end 148 | end 149 | 150 | defp reformat_abi(abi) do 151 | abi 152 | |> Enum.map(&map_abi/1) 153 | |> Map.new() 154 | end 155 | 156 | defp map_abi(x) do 157 | case {x["name"], x["type"]} do 158 | {nil, "constructor"} -> {:constructor, x} 159 | {nil, "fallback"} -> {:fallback, x} 160 | {name, _} -> {name, x} 161 | end 162 | end 163 | end 164 | -------------------------------------------------------------------------------- /lib/exw3/address.ex: -------------------------------------------------------------------------------- 1 | defmodule ExW3.Address do 2 | @type t :: %__MODULE__{bytes: binary} 3 | 4 | defstruct ~w[bytes]a 5 | 6 | @spec from_bytes(binary) :: t 7 | def from_bytes(bytes) do 8 | %__MODULE__{bytes: bytes} 9 | end 10 | 11 | @spec from_hex(String.t()) :: t 12 | def from_hex(address) do 13 | case address do 14 | "0x" <> a -> 15 | from_hex(a) 16 | 17 | a -> 18 | bytes = a |> String.downcase() |> Base.decode16!(case: :lower) 19 | %__MODULE__{bytes: bytes} 20 | end 21 | end 22 | 23 | @spec to_bytes(t) :: binary 24 | def to_bytes(%__MODULE__{bytes: bytes}) do 25 | bytes 26 | end 27 | 28 | @spec to_string(t) :: String.t() 29 | def to_string(%__MODULE__{bytes: bytes}) do 30 | Base.encode16(bytes, case: :lower) 31 | end 32 | 33 | @spec to_hex(t) :: String.t() 34 | def to_hex(%__MODULE__{} = address) do 35 | "0x#{__MODULE__.to_string(address)}" 36 | end 37 | 38 | @spec to_checksum(t) :: String.t() 39 | def to_checksum(%__MODULE__{} = address) do 40 | address = address |> __MODULE__.to_string() 41 | address_hash = address |> ExKeccak.hash_256() |> Base.encode16(case: :lower) 42 | 43 | keccak_hash_list = 44 | address_hash 45 | |> String.split("", trim: true) 46 | |> Enum.map(fn x -> elem(Integer.parse(x, 16), 0) end) 47 | 48 | list_arr = 49 | for n <- 0..(String.length(address) - 1) do 50 | number = Enum.at(keccak_hash_list, n) 51 | 52 | cond do 53 | number >= 8 -> String.upcase(String.at(address, n)) 54 | true -> String.downcase(String.at(address, n)) 55 | end 56 | end 57 | 58 | "0x" <> List.to_string(list_arr) 59 | end 60 | 61 | @spec is_valid_checksum?(String.t()) :: boolean 62 | def is_valid_checksum?(hex_address) do 63 | address = hex_address |> __MODULE__.from_hex() 64 | __MODULE__.to_checksum(address) == hex_address 65 | end 66 | end 67 | 68 | -------------------------------------------------------------------------------- /lib/exw3/client.ex: -------------------------------------------------------------------------------- 1 | defmodule ExW3.Client do 2 | @type argument :: term 3 | @type request_error :: Ethereumex.Client.Behaviour.error() 4 | @type error :: {:error, :invalid_client_type} | request_error 5 | 6 | @spec call_client(atom) :: {:ok, term} | error 7 | @spec call_client(atom, [argument]) :: {:ok, term} | error 8 | def call_client(method_name, arguments \\ []) do 9 | url_opt = extract_url_opt(arguments) 10 | 11 | case client_type(url_opt) do 12 | :http -> apply(Ethereumex.HttpClient, method_name, arguments) 13 | :ipc -> apply(Ethereumex.IpcClient, method_name, arguments) 14 | _ -> {:error, :invalid_client_type} 15 | end 16 | end 17 | 18 | defp extract_url_opt(arguments) do 19 | arguments 20 | |> List.last() 21 | |> case do 22 | last when is_list(last) -> Keyword.get(last, :url) 23 | _ -> nil 24 | end 25 | end 26 | 27 | defp client_type(nil), do: Application.get_env(:ethereumex, :client_type, :http) 28 | defp client_type("http://" <> _), do: :http 29 | defp client_type("https://" <> _), do: :http 30 | defp client_type(_), do: :invalid 31 | end 32 | -------------------------------------------------------------------------------- /lib/exw3/contract.ex: -------------------------------------------------------------------------------- 1 | defmodule ExW3.Contract do 2 | use GenServer 3 | 4 | @doc "Begins the Contract process to manage all interactions with smart contracts" 5 | @spec start_link() :: {:ok, pid()} 6 | def start_link(_ \\ :ok) do 7 | GenServer.start_link(__MODULE__, %{filters: %{}}, name: ContractManager) 8 | end 9 | 10 | @doc "Deploys contracts with given arguments" 11 | @spec deploy(atom(), list()) :: {:ok, binary(), binary()} 12 | def deploy(name, args) do 13 | GenServer.call(ContractManager, {:deploy, {name, args}}) 14 | end 15 | 16 | @doc "Registers the contract with the ContractManager process. Only :abi is required field." 17 | @spec register(atom(), list()) :: :ok 18 | def register(name, contract_info) do 19 | GenServer.cast(ContractManager, {:register, {name, contract_info}}) 20 | end 21 | 22 | @doc "Uninstalls the filter, and deletes the data associated with the filter id" 23 | @spec uninstall_filter(binary()) :: :ok 24 | def uninstall_filter(filter_id) do 25 | GenServer.cast(ContractManager, {:uninstall_filter, filter_id}) 26 | end 27 | 28 | @doc "Sets the address for the contract specified by the name argument" 29 | @spec at(atom(), binary()) :: :ok 30 | def at(name, address) do 31 | GenServer.cast(ContractManager, {:at, {name, address}}) 32 | end 33 | 34 | @doc "Returns the current Contract GenServer's address" 35 | @spec address(atom()) :: {:ok, binary()} 36 | def address(name) do 37 | GenServer.call(ContractManager, {:address, name}) 38 | end 39 | 40 | @doc "Use a Contract's method with an eth_call" 41 | @spec call(atom(), atom(), list(), any()) :: {:ok, any()} 42 | def call(contract_name, method_name, args \\ [], timeout \\ :infinity) do 43 | GenServer.call(ContractManager, {:call, {contract_name, method_name, args}}, timeout) 44 | end 45 | 46 | @doc "Use a Contract's method with an eth_sendTransaction" 47 | @spec send(atom(), atom(), list(), map()) :: {:ok, binary()} 48 | def send(contract_name, method_name, args, options) do 49 | GenServer.call(ContractManager, {:send, {contract_name, method_name, args, options}}) 50 | end 51 | 52 | @doc "Returns a formatted transaction receipt for the given transaction hash(id)" 53 | @spec tx_receipt(atom(), binary()) :: map() 54 | def tx_receipt(contract_name, tx_hash) do 55 | GenServer.call(ContractManager, {:tx_receipt, {contract_name, tx_hash}}) 56 | end 57 | 58 | @doc "Installs a filter on the Ethereum node. This also formats the parameters, and saves relevant information to format event logs." 59 | @spec filter(atom(), binary(), map()) :: {:ok, binary()} 60 | def filter(contract_name, event_name, event_data \\ %{}) do 61 | GenServer.call( 62 | ContractManager, 63 | {:filter, {contract_name, event_name, event_data}} 64 | ) 65 | end 66 | 67 | @doc "Using saved information related to the filter id, event logs are formatted properly" 68 | @spec get_filter_changes(binary()) :: {:ok, list()} 69 | def get_filter_changes(filter_id) do 70 | GenServer.call( 71 | ContractManager, 72 | {:get_filter_changes, filter_id} 73 | ) 74 | end 75 | 76 | def init(state) do 77 | {:ok, state} 78 | end 79 | 80 | defp data_signature_helper(name, fields) do 81 | non_indexed_types = Enum.map(fields, &Map.get(&1, "type")) 82 | Enum.join([name, "(", Enum.join(non_indexed_types, ","), ")"]) 83 | end 84 | 85 | defp topic_types_helper(fields) do 86 | if length(fields) > 0 do 87 | Enum.map(fields, fn field -> 88 | "(#{field["type"]})" 89 | end) 90 | else 91 | [] 92 | end 93 | end 94 | 95 | defp init_events(abi) do 96 | events = 97 | Enum.filter(abi, fn {_, v} -> 98 | v["type"] == "event" 99 | end) 100 | 101 | names_and_signature_types_map = 102 | Enum.map(events, fn {name, v} -> 103 | types = Enum.map(v["inputs"], &Map.get(&1, "type")) 104 | signature = Enum.join([name, "(", Enum.join(types, ","), ")"]) 105 | encoded_event_signature = ExW3.Utils.keccak256(signature) 106 | 107 | indexed_fields = 108 | Enum.filter(v["inputs"], fn input -> 109 | input["indexed"] 110 | end) 111 | 112 | indexed_names = 113 | Enum.map(indexed_fields, fn field -> 114 | field["name"] 115 | end) 116 | 117 | non_indexed_fields = 118 | Enum.filter(v["inputs"], fn input -> 119 | !input["indexed"] 120 | end) 121 | 122 | non_indexed_names = 123 | Enum.map(non_indexed_fields, fn field -> 124 | field["name"] 125 | end) 126 | 127 | data_signature = data_signature_helper(name, non_indexed_fields) 128 | 129 | event_attributes = %{ 130 | signature: data_signature, 131 | non_indexed_names: non_indexed_names, 132 | topic_types: topic_types_helper(indexed_fields), 133 | topic_names: indexed_names 134 | } 135 | 136 | {{encoded_event_signature, event_attributes}, {name, encoded_event_signature}} 137 | end) 138 | 139 | signature_types_map = 140 | Enum.map(names_and_signature_types_map, fn {signature_types, _} -> 141 | signature_types 142 | end) 143 | 144 | names_map = 145 | Enum.map(names_and_signature_types_map, fn {_, names} -> 146 | names 147 | end) 148 | 149 | [ 150 | events: Enum.into(signature_types_map, %{}), 151 | event_names: Enum.into(names_map, %{}) 152 | ] 153 | end 154 | 155 | def deploy_helper(bin, abi, args) do 156 | constructor_arg_data = 157 | if arguments = args[:args] do 158 | constructor_abi = 159 | Enum.find(abi, fn {_, v} -> 160 | v["type"] == "constructor" 161 | end) 162 | 163 | if constructor_abi do 164 | {_, constructor} = constructor_abi 165 | input_types = Enum.map(constructor["inputs"], fn x -> x["type"] end) 166 | types_signature = Enum.join(["(", Enum.join(input_types, ","), ")"]) 167 | 168 | arg_count = Enum.count(arguments) 169 | input_types_count = Enum.count(input_types) 170 | 171 | if input_types_count != arg_count do 172 | raise "Number of provided arguments to constructor is incorrect. Was given #{ 173 | arg_count 174 | } args, looking for #{input_types_count}." 175 | end 176 | 177 | bin <> 178 | (ExW3.Abi.encode_data(types_signature, arguments) |> Base.encode16(case: :lower)) 179 | else 180 | # IO.warn("Could not find a constructor") 181 | bin 182 | end 183 | else 184 | bin 185 | end 186 | 187 | gas = ExW3.Abi.encode_option(args[:options][:gas]) 188 | gasPrice = ExW3.Abi.encode_option(args[:options][:gas_price]) 189 | 190 | tx = %{ 191 | from: args[:options][:from], 192 | data: "0x#{constructor_arg_data}", 193 | gas: gas, 194 | gasPrice: gasPrice 195 | } 196 | 197 | {:ok, tx_hash} = ExW3.Rpc.eth_send([tx]) 198 | {:ok, tx_receipt} = ExW3.Rpc.tx_receipt(tx_hash) 199 | 200 | {tx_receipt["contractAddress"], tx_hash} 201 | end 202 | 203 | def eth_call_helper(address, abi, method_name, args) do 204 | result = 205 | ExW3.Rpc.eth_call([ 206 | %{ 207 | to: address, 208 | data: "0x#{ExW3.Abi.encode_method_call(abi, method_name, args)}" 209 | } 210 | ]) 211 | 212 | case result do 213 | {:ok, data} -> 214 | ([:ok] ++ ExW3.Abi.decode_output(abi, method_name, data)) |> List.to_tuple() 215 | 216 | {:error, err} -> 217 | {:error, err} 218 | end 219 | end 220 | 221 | def eth_send_helper(address, abi, method_name, args, options) do 222 | encoded_options = 223 | ExW3.Abi.encode_options( 224 | options, 225 | [:gas, :gasPrice, :value, :nonce] 226 | ) 227 | 228 | gas = ExW3.Abi.encode_option(args[:options][:gas]) 229 | gasPrice = ExW3.Abi.encode_option(args[:options][:gas_price]) 230 | 231 | ExW3.Rpc.eth_send([ 232 | Map.merge( 233 | %{ 234 | to: address, 235 | data: "0x#{ExW3.Abi.encode_method_call(abi, method_name, args)}", 236 | gas: gas, 237 | gasPrice: gasPrice 238 | }, 239 | Map.merge(options, encoded_options) 240 | ) 241 | ]) 242 | end 243 | 244 | defp register_helper(contract_info) do 245 | if contract_info[:abi] do 246 | contract_info ++ init_events(contract_info[:abi]) 247 | else 248 | raise "ABI not provided upon initialization" 249 | end 250 | end 251 | 252 | # Options' checkers 253 | 254 | defp check_option(nil, error_atom), do: {:error, error_atom} 255 | defp check_option([], error_atom), do: {:error, error_atom} 256 | defp check_option([head | _tail], _atom) when head != nil, do: {:ok, head} 257 | defp check_option([_head | tail], atom), do: check_option(tail, atom) 258 | defp check_option(value, _atom), do: {:ok, value} 259 | 260 | # Casts 261 | 262 | def handle_cast({:at, {name, address}}, state) do 263 | contract_state = state[name] 264 | contract_state = Keyword.put(contract_state, :address, address) 265 | state = Map.put(state, name, contract_state) 266 | {:noreply, state} 267 | end 268 | 269 | def handle_cast({:register, {name, contract_info}}, state) do 270 | {:noreply, Map.put(state, name, register_helper(contract_info))} 271 | end 272 | 273 | def handle_cast({:uninstall_filter, filter_id}, state) do 274 | ExW3.uninstall_filter(filter_id) 275 | {:noreply, Map.put(state, :filters, Map.delete(state[:filters], filter_id))} 276 | end 277 | 278 | # Calls 279 | 280 | defp filter_topics_helper(event_signature, event_data, topic_types, topic_names) do 281 | topics = 282 | if is_map(event_data[:topics]) do 283 | Enum.map(topic_names, fn name -> 284 | event_data[:topics][String.to_atom(name)] 285 | end) 286 | else 287 | event_data[:topics] 288 | end 289 | 290 | if topics do 291 | formatted_topics = 292 | Enum.map(0..(length(topics) - 1), fn i -> 293 | topic = Enum.at(topics, i) 294 | 295 | if topic do 296 | if is_list(topic) do 297 | topic_type = Enum.at(topic_types, i) 298 | 299 | Enum.map(topic, fn t -> 300 | "0x" <> (ExW3.Abi.encode_data(topic_type, [t]) |> Base.encode16(case: :lower)) 301 | end) 302 | else 303 | topic_type = Enum.at(topic_types, i) 304 | "0x" <> (ExW3.Abi.encode_data(topic_type, [topic]) |> Base.encode16(case: :lower)) 305 | end 306 | else 307 | topic 308 | end 309 | end) 310 | 311 | [event_signature] ++ formatted_topics 312 | else 313 | [event_signature] 314 | end 315 | end 316 | 317 | def from_block_helper(event_data) do 318 | if event_data[:fromBlock] do 319 | new_from_block = 320 | if Enum.member?(["latest", "earliest", "pending"], event_data[:fromBlock]) do 321 | event_data[:fromBlock] 322 | else 323 | ExW3.Abi.encode_data("(uint256)", [event_data[:fromBlock]]) 324 | end 325 | 326 | Map.put(event_data, :fromBlock, new_from_block) 327 | else 328 | event_data 329 | end 330 | end 331 | 332 | defp param_helper(event_data, key) do 333 | if event_data[key] do 334 | new_param = 335 | if Enum.member?(["latest", "earliest", "pending"], event_data[key]) do 336 | event_data[key] 337 | else 338 | "0x" <> 339 | (ExW3.Abi.encode_data("(uint256)", [event_data[key]]) 340 | |> Base.encode16(case: :lower)) 341 | end 342 | 343 | Map.put(event_data, key, new_param) 344 | else 345 | event_data 346 | end 347 | end 348 | 349 | defp event_data_format_helper(event_data) do 350 | event_data 351 | |> param_helper(:fromBlock) 352 | |> param_helper(:toBlock) 353 | |> Map.delete(:topics) 354 | end 355 | 356 | def get_event_attributes(state, contract_name, event_name) do 357 | contract_info = state[contract_name] 358 | contract_info[:events][contract_info[:event_names][event_name]] 359 | end 360 | 361 | defp extract_non_indexed_fields(data, names, signature) do 362 | Enum.zip(names, ExW3.Abi.decode_event(data, signature)) |> Enum.into(%{}) 363 | end 364 | 365 | defp format_log_data(log, event_attributes) do 366 | non_indexed_fields = 367 | extract_non_indexed_fields( 368 | Map.get(log, "data"), 369 | event_attributes[:non_indexed_names], 370 | event_attributes[:signature] 371 | ) 372 | 373 | indexed_fields = 374 | if length(log["topics"]) > 1 do 375 | [_head | tail] = log["topics"] 376 | 377 | decoded_topics = 378 | Enum.map(0..(length(tail) - 1), fn i -> 379 | topic_type = Enum.at(event_attributes[:topic_types], i) 380 | topic_data = Enum.at(tail, i) 381 | 382 | {decoded} = ExW3.Abi.decode_data(topic_type, topic_data) 383 | 384 | decoded 385 | end) 386 | 387 | Enum.zip(event_attributes[:topic_names], decoded_topics) |> Enum.into(%{}) 388 | else 389 | %{} 390 | end 391 | 392 | new_data = Map.merge(indexed_fields, non_indexed_fields) 393 | 394 | Map.put(log, "data", new_data) 395 | end 396 | 397 | def handle_call({:filter, {contract_name, event_name, event_data}}, _from, state) do 398 | contract_info = state[contract_name] 399 | 400 | event_signature = contract_info[:event_names][event_name] 401 | topic_types = contract_info[:events][event_signature][:topic_types] 402 | topic_names = contract_info[:events][event_signature][:topic_names] 403 | 404 | topics = filter_topics_helper(event_signature, event_data, topic_types, topic_names) 405 | 406 | payload = 407 | Map.merge( 408 | %{address: contract_info[:address], topics: topics}, 409 | event_data_format_helper(event_data) 410 | ) 411 | 412 | filter_id = ExW3.Rpc.new_filter(payload) 413 | 414 | {:reply, {:ok, filter_id}, 415 | Map.put( 416 | state, 417 | :filters, 418 | Map.put(state[:filters], filter_id, %{ 419 | contract_name: contract_name, 420 | event_name: event_name 421 | }) 422 | )} 423 | end 424 | 425 | def handle_call({:get_filter_changes, filter_id}, _from, state) do 426 | filter_info = Map.get(state[:filters], filter_id) 427 | 428 | event_attributes = 429 | get_event_attributes(state, filter_info[:contract_name], filter_info[:event_name]) 430 | 431 | logs = ExW3.Rpc.get_filter_changes(filter_id) 432 | 433 | formatted_logs = 434 | if logs != [] do 435 | Enum.map(logs, fn log -> 436 | formatted_log = 437 | Enum.reduce( 438 | [ 439 | ExW3.Normalize.transform_to_integer(log, [ 440 | "blockNumber", 441 | "logIndex", 442 | "transactionIndex" 443 | ]), 444 | format_log_data(log, event_attributes) 445 | ], 446 | &Map.merge/2 447 | ) 448 | 449 | formatted_log 450 | end) 451 | else 452 | logs 453 | end 454 | 455 | {:reply, {:ok, formatted_logs}, state} 456 | end 457 | 458 | def handle_call({:deploy, {name, args}}, _from, state) do 459 | contract_info = state[name] 460 | 461 | with {:ok, _} <- check_option(args[:options][:from], :missing_sender), 462 | {:ok, _} <- check_option(args[:options][:gas], :missing_gas), 463 | {:ok, bin} <- check_option([state[:bin], args[:bin]], :missing_binary) do 464 | {contract_addr, tx_hash} = deploy_helper(bin, contract_info[:abi], args) 465 | result = {:ok, contract_addr, tx_hash} 466 | {:reply, result, state} 467 | else 468 | err -> {:reply, err, state} 469 | end 470 | end 471 | 472 | def handle_call({:address, name}, _from, state) do 473 | {:reply, state[name][:address], state} 474 | end 475 | 476 | def handle_call({:call, {contract_name, method_name, args}}, _from, state) do 477 | contract_info = state[contract_name] 478 | 479 | with {:ok, address} <- check_option(contract_info[:address], :missing_address) do 480 | result = eth_call_helper(address, contract_info[:abi], Atom.to_string(method_name), args) 481 | {:reply, result, state} 482 | else 483 | err -> {:reply, err, state} 484 | end 485 | end 486 | 487 | def handle_call({:send, {contract_name, method_name, args, options}}, _from, state) do 488 | contract_info = state[contract_name] 489 | 490 | with {:ok, address} <- check_option(contract_info[:address], :missing_address), 491 | {:ok, _} <- check_option(options[:from], :missing_sender), 492 | {:ok, _} <- check_option(options[:gas], :missing_gas) do 493 | result = 494 | eth_send_helper( 495 | address, 496 | contract_info[:abi], 497 | Atom.to_string(method_name), 498 | args, 499 | options 500 | ) 501 | 502 | {:reply, result, state} 503 | else 504 | err -> {:reply, err, state} 505 | end 506 | end 507 | 508 | def handle_call({:tx_receipt, {contract_name, tx_hash}}, _from, state) do 509 | contract_info = state[contract_name] 510 | 511 | {:ok, receipt} = ExW3.tx_receipt(tx_hash) 512 | 513 | events = contract_info[:events] 514 | logs = receipt["logs"] 515 | 516 | formatted_logs = 517 | Enum.map(logs, fn log -> 518 | topic = Enum.at(log["topics"], 0) 519 | event_attributes = Map.get(events, topic) 520 | 521 | if event_attributes do 522 | non_indexed_fields = 523 | Enum.zip( 524 | event_attributes[:non_indexed_names], 525 | ExW3.Abi.decode_event(log["data"], event_attributes[:signature]) 526 | ) 527 | |> Enum.into(%{}) 528 | 529 | if length(log["topics"]) > 1 do 530 | [_head | tail] = log["topics"] 531 | 532 | decoded_topics = 533 | Enum.map(0..(length(tail) - 1), fn i -> 534 | topic_type = Enum.at(event_attributes[:topic_types], i) 535 | topic_data = Enum.at(tail, i) 536 | 537 | {decoded} = ExW3.Abi.decode_data(topic_type, topic_data) 538 | 539 | decoded 540 | end) 541 | 542 | indexed_fields = 543 | Enum.zip(event_attributes[:topic_names], decoded_topics) |> Enum.into(%{}) 544 | 545 | Map.merge(indexed_fields, non_indexed_fields) 546 | else 547 | non_indexed_fields 548 | end 549 | else 550 | nil 551 | end 552 | end) 553 | 554 | {:reply, {:ok, {receipt, formatted_logs}}, state} 555 | end 556 | end 557 | -------------------------------------------------------------------------------- /lib/exw3/normalize.ex: -------------------------------------------------------------------------------- 1 | defmodule ExW3.Normalize do 2 | @spec transform_to_integer(map(), list()) :: map() 3 | def transform_to_integer(map, keys) do 4 | for k <- keys, into: %{} do 5 | {:ok, v} = map |> Map.get(k) |> ExW3.Utils.hex_to_integer() 6 | {k, v} 7 | end 8 | end 9 | end 10 | -------------------------------------------------------------------------------- /lib/exw3/rpc.ex: -------------------------------------------------------------------------------- 1 | defmodule ExW3.Rpc do 2 | import ExW3.Client 3 | 4 | @type invalid_hex_string_error :: ExW3.Utils.invalid_hex_string_error() 5 | @type request_error :: Ethereumex.Client.Behaviour.error() 6 | @type opts :: {:url, String.t()} 7 | @type hex_block_number :: String.t() 8 | @type latest :: String.t() 9 | @type earliest :: String.t() 10 | @type pending :: String.t() 11 | 12 | @doc "returns all available accounts" 13 | @spec accounts() :: list() 14 | @spec accounts([opts]) :: list() 15 | def accounts(opts \\ []) do 16 | case call_client(:eth_accounts, [opts]) do 17 | {:ok, accounts} -> accounts 18 | err -> err 19 | end 20 | end 21 | 22 | @doc "Returns the current block number" 23 | @spec block_number() :: {:ok, non_neg_integer} | {:error, ExW3.Utils.invalid_hex_string()} 24 | @spec block_number([opts]) :: {:ok, non_neg_integer} | {:error, ExW3.Utils.invalid_hex_string()} 25 | def block_number(opts \\ []) do 26 | case call_client(:eth_block_number, [opts]) do 27 | {:ok, hex_block_number} -> ExW3.Utils.hex_to_integer(hex_block_number) 28 | err -> err 29 | end 30 | end 31 | 32 | @doc "Returns current balance of account" 33 | @spec balance(binary()) :: integer() | {:error, any()} 34 | @spec balance(binary(), [opts]) :: integer() | {:error, any()} 35 | def balance(account, opts \\ []) do 36 | case call_client(:eth_get_balance, [account, "latest", opts]) do 37 | {:ok, hex_balance} -> 38 | {:ok, balance} = ExW3.Utils.hex_to_integer(hex_balance) 39 | balance 40 | 41 | err -> 42 | err 43 | end 44 | end 45 | 46 | @doc "Returns transaction receipt for specified transaction hash(id)" 47 | @spec tx_receipt(binary()) :: {:ok, map()} | {:error, any()} 48 | def tx_receipt(tx_hash) do 49 | case call_client(:eth_get_transaction_receipt, [tx_hash]) do 50 | {:ok, nil} -> 51 | {:error, :not_mined} 52 | 53 | {:ok, receipt} -> 54 | normalized_receipt = 55 | ExW3.Normalize.transform_to_integer(receipt, ~w(blockNumber cumulativeGasUsed gasUsed)) 56 | 57 | {:ok, Map.merge(receipt, normalized_receipt)} 58 | 59 | err -> 60 | {:error, err} 61 | end 62 | end 63 | 64 | @doc "Returns block data for specified block number" 65 | @spec block(integer()) :: any() | {:error, any()} 66 | def block(block_number) do 67 | case call_client(:eth_get_block_by_number, [block_number, true]) do 68 | {:ok, block} -> block 69 | err -> err 70 | end 71 | end 72 | 73 | @doc "Creates a new filter, returns filter id. For more sophisticated use, prefer ExW3.Contract.filter." 74 | @spec new_filter(map()) :: binary() | {:error, any()} 75 | def new_filter(map) do 76 | case call_client(:eth_new_filter, [map]) do 77 | {:ok, filter_id} -> filter_id 78 | err -> err 79 | end 80 | end 81 | 82 | @doc "Gets event changes (logs) by filter. Unlike ExW3.Contract.get_filter_changes it does not return the data in a formatted way" 83 | @spec get_filter_changes(binary()) :: any() 84 | def get_filter_changes(filter_id) do 85 | case call_client(:eth_get_filter_changes, [filter_id]) do 86 | {:ok, changes} -> changes 87 | err -> err 88 | end 89 | end 90 | 91 | @type log_filter :: %{ 92 | optional(:address) => String.t(), 93 | optional(:fromBlock) => hex_block_number | latest | earliest | pending, 94 | optional(:toBlock) => hex_block_number | latest | earliest | pending, 95 | optional(:topics) => [String.t()], 96 | optional(:blockhash) => String.t() 97 | } 98 | 99 | @spec get_logs(log_filter, [opts]) :: {:ok, list} | {:error, term} | request_error 100 | def get_logs(filter, opts \\ []) do 101 | with {:ok, _} = result <- call_client(:eth_get_logs, [filter, opts]) do 102 | result 103 | else 104 | err -> err 105 | end 106 | end 107 | 108 | @doc "Uninstalls filter from the ethereum node" 109 | @spec uninstall_filter(binary()) :: boolean() | {:error, any()} 110 | def uninstall_filter(filter_id) do 111 | case call_client(:eth_uninstall_filter, [filter_id]) do 112 | {:ok, result} -> result 113 | err -> err 114 | end 115 | end 116 | 117 | @doc "Mines number of blocks specified. Default is 1" 118 | @spec mine(integer()) :: any() | {:error, any()} 119 | def mine(num_blocks \\ 1) do 120 | for _ <- 0..(num_blocks - 1) do 121 | call_client(:request, ["evm_mine", [], []]) 122 | end 123 | end 124 | 125 | @doc "Using the personal api, returns list of accounts." 126 | @spec personal_list_accounts(list()) :: {:ok, list()} | {:error, any()} 127 | def personal_list_accounts(opts \\ []) do 128 | call_client(:request, ["personal_listAccounts", [], opts]) 129 | end 130 | 131 | @doc "Using the personal api, this method creates a new account with the passphrase, and returns new account address." 132 | @spec personal_new_account(binary(), list()) :: {:ok, binary()} | {:error, any()} 133 | def personal_new_account(password, opts \\ []) do 134 | call_client(:request, ["personal_newAccount", [password], opts]) 135 | end 136 | 137 | @doc "Using the personal api, this method unlocks account using the passphrase provided, and returns a boolean." 138 | @spec personal_unlock_account(binary(), list()) :: {:ok, boolean()} | {:error, any()} 139 | ### E.g. ExW3.personal_unlock_account(["0x1234","Password",30], []) 140 | def personal_unlock_account(params, opts \\ []) do 141 | call_client(:request, ["personal_unlockAccount", params, opts]) 142 | end 143 | 144 | @doc "Using the personal api, this method sends a transaction and signs it in one call, and returns a transaction id hash." 145 | @spec personal_send_transaction(map(), binary(), list()) :: {:ok, binary()} | {:error, any()} 146 | def personal_send_transaction(param_map, passphrase, opts \\ []) do 147 | call_client(:request, ["personal_sendTransaction", [param_map, passphrase], opts]) 148 | end 149 | 150 | @doc "Using the personal api, this method signs a transaction, and returns the signed transaction." 151 | @spec personal_sign_transaction(map(), binary(), list()) :: {:ok, map()} | {:error, any()} 152 | def personal_sign_transaction(param_map, passphrase, opts \\ []) do 153 | call_client(:request, ["personal_signTransaction", [param_map, passphrase], opts]) 154 | end 155 | 156 | @doc "Using the personal api, this method calculates an Ethereum specific signature, and returns that signature." 157 | @spec personal_sign(binary(), binary(), binary(), list()) :: {:ok, binary()} | {:error, any()} 158 | def personal_sign(data, address, passphrase, opts \\ []) do 159 | call_client(:request, ["personal_sign", [data, address, passphrase], opts]) 160 | end 161 | 162 | @doc "Using the personal api, this method returns the address associated with the private key that was used to calculate the signature with personal_sign." 163 | @spec personal_ec_recover(binary(), binary(), []) :: {:ok, binary()} | {:error, any()} 164 | def personal_ec_recover(data0, data1, opts \\ []) do 165 | call_client(:request, ["personal_ecRecover", [data0, data1], opts]) 166 | end 167 | 168 | @doc "Calculates an Ethereum specific signature and signs the data provided, using the accounts private key" 169 | @spec eth_sign(binary(), binary(), list()) :: {:ok, binary()} | {:error, any()} 170 | def eth_sign(data0, data1, opts \\ []) do 171 | call_client(:request, ["eth_sign", [data0, data1], opts]) 172 | end 173 | 174 | @doc "Simple eth_call to client. Recommended to use ExW3.Contract.call instead." 175 | @spec eth_call(list()) :: any() 176 | def eth_call(arguments) do 177 | call_client(:eth_call, arguments) 178 | end 179 | 180 | @doc "Simple eth_send_transaction. Recommended to use ExW3.Contract.send instead." 181 | @spec eth_send(list()) :: any() 182 | def eth_send(arguments) do 183 | call_client(:eth_send_transaction, arguments) 184 | end 185 | end 186 | -------------------------------------------------------------------------------- /lib/exw3/utils.ex: -------------------------------------------------------------------------------- 1 | defmodule ExW3.Utils do 2 | alias ExW3.Address 3 | 4 | @type invalid_hex_string :: :invalid_hex_string 5 | @type negative_integer :: :negative_integer 6 | @type non_integer :: :non_integer 7 | @type eth_hex :: String.t() 8 | 9 | @doc "Convert eth hex string to integer" 10 | @spec hex_to_integer(eth_hex) :: 11 | {:ok, non_neg_integer} | {:error, invalid_hex_string} 12 | def hex_to_integer(hex) do 13 | case hex do 14 | "0x" <> hex -> {:ok, String.to_integer(hex, 16)} 15 | _ -> {:error, :invalid_hex_string} 16 | end 17 | rescue 18 | ArgumentError -> 19 | {:error, :invalid_hex_string} 20 | end 21 | 22 | @doc "Convert an integer to eth hex string" 23 | @spec integer_to_hex(non_neg_integer) :: 24 | {:ok, eth_hex} | {:error, negative_integer | non_integer} 25 | def integer_to_hex(i) do 26 | case i do 27 | i when i < 0 -> {:error, :negative_integer} 28 | i -> {:ok, "0x" <> Integer.to_string(i, 16)} 29 | end 30 | rescue 31 | ArgumentError -> 32 | {:error, :non_integer} 33 | end 34 | 35 | @doc "Returns a 0x prepended 32 byte hash of the input string" 36 | @spec keccak256(String.t()) :: String.t() 37 | def keccak256(str) do 38 | "0x#{str |> ExKeccak.hash_256() |> Base.encode16(case: :lower)}" 39 | end 40 | 41 | @unit_map %{ 42 | :noether => 0, 43 | :wei => 1, 44 | :kwei => 1_000, 45 | :Kwei => 1_000, 46 | :babbage => 1_000, 47 | :femtoether => 1_000, 48 | :mwei => 1_000_000, 49 | :Mwei => 1_000_000, 50 | :lovelace => 1_000_000, 51 | :picoether => 1_000_000, 52 | :gwei => 1_000_000_000, 53 | :Gwei => 1_000_000_000, 54 | :shannon => 1_000_000_000, 55 | :nanoether => 1_000_000_000, 56 | :nano => 1_000_000_000, 57 | :szabo => 1_000_000_000_000, 58 | :microether => 1_000_000_000_000, 59 | :micro => 1_000_000_000_000, 60 | :finney => 1_000_000_000_000_000, 61 | :milliether => 1_000_000_000_000_000, 62 | :milli => 1_000_000_000_000_000, 63 | :ether => 1_000_000_000_000_000_000, 64 | :kether => 1_000_000_000_000_000_000_000, 65 | :grand => 1_000_000_000_000_000_000_000, 66 | :mether => 1_000_000_000_000_000_000_000_000, 67 | :gether => 1_000_000_000_000_000_000_000_000_000, 68 | :tether => 1_000_000_000_000_000_000_000_000_000_000 69 | } 70 | 71 | @doc "Converts the value to whatever unit key is provided. See unit map for details." 72 | @spec to_wei(integer, atom) :: integer 73 | def to_wei(num, key) do 74 | if @unit_map[key] do 75 | num * @unit_map[key] 76 | else 77 | throw("#{key} not valid unit") 78 | end 79 | end 80 | 81 | @doc "Converts the value to whatever unit key is provided. See unit map for details." 82 | @spec from_wei(integer, atom) :: integer | float | no_return 83 | def from_wei(num, key) do 84 | if @unit_map[key] do 85 | num / @unit_map[key] 86 | else 87 | throw("#{key} not valid unit") 88 | end 89 | end 90 | 91 | @deprecated "Use ExW3.Address.to_checksum/1 instead." 92 | @doc "Returns a checksummed address conforming to EIP-55" 93 | @spec to_checksum_address(String.t()) :: String.t() 94 | def to_checksum_address(address) do 95 | address 96 | |> Address.from_hex() 97 | |> Address.to_checksum() 98 | end 99 | 100 | @deprecated "Use ExW3.Address.is_valid_checksum?/1 instead." 101 | @doc "Checks if the address is a valid checksummed address" 102 | @spec is_valid_checksum_address(String.t()) :: boolean 103 | def is_valid_checksum_address(address) do 104 | Address.is_valid_checksum?(address) 105 | end 106 | 107 | @doc "converts Ethereum style bytes to string" 108 | @spec bytes_to_string(binary()) :: binary() 109 | def bytes_to_string(bytes) do 110 | bytes 111 | |> Base.encode16(case: :lower) 112 | |> String.replace_trailing("0", "") 113 | |> Base.decode16!(case: :lower) 114 | end 115 | 116 | @doc "Converts an Ethereum address into a form that can be used by the ABI encoder" 117 | @spec format_address(binary()) :: integer() 118 | def format_address(address) do 119 | address 120 | |> String.slice(2..-1) 121 | |> Base.decode16!(case: :lower) 122 | |> :binary.decode_unsigned() 123 | end 124 | 125 | @deprecated "Use ExW3.Address.to_hex/1 instead." 126 | @doc "Converts bytes to Ethereum address" 127 | @spec to_address(binary()) :: binary() 128 | def to_address(bytes) do 129 | bytes 130 | |> Address.from_bytes() 131 | |> Address.to_hex() 132 | end 133 | end 134 | -------------------------------------------------------------------------------- /mix.exs: -------------------------------------------------------------------------------- 1 | defmodule ExW3.MixProject do 2 | use Mix.Project 3 | 4 | @source_url "https://github.com/hswick/exw3" 5 | @version "0.6.1" 6 | 7 | def project do 8 | [ 9 | app: :exw3, 10 | version: @version, 11 | elixir: "~> 1.10", 12 | build_embedded: Mix.env() == :prod, 13 | start_permanent: Mix.env() == :prod, 14 | deps: deps(), 15 | docs: docs(), 16 | package: package(), 17 | name: "exw3", 18 | dialyzer: [ 19 | remove_defaults: [:unknown] 20 | ], 21 | preferred_cli_env: [ 22 | docs: :docs, 23 | "hex.publish": :docs 24 | ] 25 | ] 26 | end 27 | 28 | def application do 29 | [applications: [:logger, :ex_abi, :ethereumex]] 30 | end 31 | 32 | defp deps do 33 | [ 34 | {:ex_doc, ">= 0.0.0", only: :docs, runtime: false}, 35 | {:ethereumex, "~> 0.7.0"}, 36 | {:ex_keccak, "~> 0.2"}, 37 | {:ex_abi, "~> 0.5.4"}, 38 | {:dialyxir, "~> 1.0", only: [:dev], runtime: false}, 39 | {:jason, "~> 1.2"} 40 | ] 41 | end 42 | 43 | defp package do 44 | [ 45 | name: "exw3", 46 | description: "A high level Ethereum JSON RPC Client for Elixir", 47 | files: ["lib", "mix.exs", "README*", "LICENSE*"], 48 | maintainers: ["Harley Swick"], 49 | licenses: ["Apache-2.0"], 50 | links: %{"GitHub" => @source_url} 51 | ] 52 | end 53 | 54 | defp docs do 55 | [ 56 | extras: [ 57 | LICENSE: [title: "License"], 58 | "README.md": [title: "Overview"] 59 | ], 60 | main: "readme", 61 | assets: "assets", 62 | source_url: @source_url, 63 | source_ref: "v#{@version}", 64 | formatters: ["html"] 65 | ] 66 | end 67 | end 68 | -------------------------------------------------------------------------------- /mix.lock: -------------------------------------------------------------------------------- 1 | %{ 2 | "certifi": {:hex, :certifi, "2.8.0", "d4fb0a6bb20b7c9c3643e22507e42f356ac090a1dcea9ab99e27e0376d695eba", [:rebar3], [], "hexpm", "6ac7efc1c6f8600b08d625292d4bbf584e14847ce1b6b5c44d983d273e1097ea"}, 3 | "dialyxir": {:hex, :dialyxir, "1.1.0", "c5aab0d6e71e5522e77beff7ba9e08f8e02bad90dfbeffae60eaf0cb47e29488", [:mix], [{:erlex, ">= 0.2.6", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm", "07ea8e49c45f15264ebe6d5b93799d4dd56a44036cf42d0ad9c960bc266c0b9a"}, 4 | "earmark_parser": {:hex, :earmark_parser, "1.4.26", "f4291134583f373c7d8755566122908eb9662df4c4b63caa66a0eabe06569b0a", [:mix], [], "hexpm", "48d460899f8a0c52c5470676611c01f64f3337bad0b26ddab43648428d94aabc"}, 5 | "erlex": {:hex, :erlex, "0.2.6", "c7987d15e899c7a2f34f5420d2a2ea0d659682c06ac607572df55a43753aa12e", [:mix], [], "hexpm", "2ed2e25711feb44d52b17d2780eabf998452f6efda104877a3881c2f8c0c0c75"}, 6 | "ethereumex": {:hex, :ethereumex, "0.7.1", "9a376d072be0f318d2685fadf87877cf58884e382e00ccaee7834f3327ade0a8", [:mix], [{:httpoison, "~> 1.7", [hex: :httpoison, repo: "hexpm", optional: false]}, {:jason, "~> 1.2", [hex: :jason, repo: "hexpm", optional: false]}, {:poolboy, "~> 1.5", [hex: :poolboy, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "58ba04d235cfb6e8ced3fd79443ea1bde78f24cb6719538572fab89fdc8427b8"}, 7 | "ex_abi": {:hex, :ex_abi, "0.5.9", "afdef4279eb24a36bef1d4a83df8a34997c2dddf3ffac48866bb1113f28ae55b", [:mix], [{:ex_keccak, "~> 0.3.0", [hex: :ex_keccak, repo: "hexpm", optional: false]}, {:jason, "~> 1.3", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "230f6dada9995336f1d1b739194d99307a1d079e045548bbca0b622c8c4dbf5b"}, 8 | "ex_doc": {:hex, :ex_doc, "0.28.5", "3e52a6d2130ce74d096859e477b97080c156d0926701c13870a4e1f752363279", [:mix], [{:earmark_parser, "~> 1.4.19", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "d2c4b07133113e9aa3e9ba27efb9088ba900e9e51caa383919676afdf09ab181"}, 9 | "ex_keccak": {:hex, :ex_keccak, "0.3.0", "8c286f8c44c63c5f95e84053603f09cbef52d96314f2b751e56cf8836ceaea63", [:mix], [{:rustler, "~> 0.23", [hex: :rustler, repo: "hexpm", optional: false]}], "hexpm", "18352c5873ee4938363ae9802038b6a157177a080db40b6e4ab842255ae44b9b"}, 10 | "hackney": {:hex, :hackney, "1.18.0", "c4443d960bb9fba6d01161d01cd81173089686717d9490e5d3606644c48d121f", [:rebar3], [{:certifi, "~>2.8.0", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "~>6.1.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "~>1.0.0", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "~>1.1", [hex: :mimerl, repo: "hexpm", optional: false]}, {:parse_trans, "3.3.1", [hex: :parse_trans, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "~>1.1.0", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}, {:unicode_util_compat, "~>0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "9afcda620704d720db8c6a3123e9848d09c87586dc1c10479c42627b905b5c5e"}, 11 | "httpoison": {:hex, :httpoison, "1.8.0", "6b85dea15820b7804ef607ff78406ab449dd78bed923a49c7160e1886e987a3d", [:mix], [{:hackney, "~> 1.17", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm", "28089eaa98cf90c66265b6b5ad87c59a3729bea2e74e9d08f9b51eb9729b3c3a"}, 12 | "idna": {:hex, :idna, "6.1.1", "8a63070e9f7d0c62eb9d9fcb360a7de382448200fbbd1b106cc96d3d8099df8d", [:rebar3], [{:unicode_util_compat, "~>0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "92376eb7894412ed19ac475e4a86f7b413c1b9fbb5bd16dccd57934157944cea"}, 13 | "jason": {:hex, :jason, "1.3.0", "fa6b82a934feb176263ad2df0dbd91bf633d4a46ebfdffea0c8ae82953714946", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "53fc1f51255390e0ec7e50f9cb41e751c260d065dcba2bf0d08dc51a4002c2ac"}, 14 | "makeup": {:hex, :makeup, "1.1.0", "6b67c8bc2882a6b6a445859952a602afc1a41c2e08379ca057c0f525366fc3ca", [:mix], [{:nimble_parsec, "~> 1.2.2 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "0a45ed501f4a8897f580eabf99a2e5234ea3e75a4373c8a52824f6e873be57a6"}, 15 | "makeup_elixir": {:hex, :makeup_elixir, "0.16.0", "f8c570a0d33f8039513fbccaf7108c5d750f47d8defd44088371191b76492b0b", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.2.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "28b2cbdc13960a46ae9a8858c4bebdec3c9a6d7b4b9e7f4ed1502f8159f338e7"}, 16 | "makeup_erlang": {:hex, :makeup_erlang, "0.1.1", "3fcb7f09eb9d98dc4d208f49cc955a34218fc41ff6b84df7c75b3e6e533cc65f", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "174d0809e98a4ef0b3309256cbf97101c6ec01c4ab0b23e926a9e17df2077cbb"}, 17 | "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], [], "hexpm", "69b09adddc4f74a40716ae54d140f93beb0fb8978d8636eaded0c31b6f099f16"}, 18 | "mimerl": {:hex, :mimerl, "1.2.0", "67e2d3f571088d5cfd3e550c383094b47159f3eee8ffa08e64106cdf5e981be3", [:rebar3], [], "hexpm", "f278585650aa581986264638ebf698f8bb19df297f66ad91b18910dfc6e19323"}, 19 | "nimble_parsec": {:hex, :nimble_parsec, "1.2.3", "244836e6e3f1200c7f30cb56733fd808744eca61fd182f731eac4af635cc6d0b", [:mix], [], "hexpm", "c8d789e39b9131acf7b99291e93dae60ab48ef14a7ee9d58c6964f59efb570b0"}, 20 | "parse_trans": {:hex, :parse_trans, "3.3.1", "16328ab840cc09919bd10dab29e431da3af9e9e7e7e6f0089dd5a2d2820011d8", [:rebar3], [], "hexpm", "07cd9577885f56362d414e8c4c4e6bdf10d43a8767abb92d24cbe8b24c54888b"}, 21 | "poison": {:hex, :poison, "4.0.1", "bcb755a16fac91cad79bfe9fc3585bb07b9331e50cfe3420a24bcc2d735709ae", [:mix], [], "hexpm", "ba8836feea4b394bb718a161fc59a288fe0109b5006d6bdf97b6badfcf6f0f25"}, 22 | "poolboy": {:hex, :poolboy, "1.5.2", "392b007a1693a64540cead79830443abf5762f5d30cf50bc95cb2c1aaafa006b", [:rebar3], [], "hexpm", "dad79704ce5440f3d5a3681c8590b9dc25d1a561e8f5a9c995281012860901e3"}, 23 | "rustler": {:hex, :rustler, "0.23.0", "87162ffdf5a46b6aa03d624a77367070ff1263961ae35332c059225e136c4a87", [:mix], [{:jason, "~> 1.2", [hex: :jason, repo: "hexpm", optional: false]}, {:toml, "~> 0.5.2", [hex: :toml, repo: "hexpm", optional: false]}], "hexpm", "f5ab6f0ec564f5569009c0f5685b0e5b379fd72655e82a8dc5a3c24f9fdda36a"}, 24 | "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.6", "cf344f5692c82d2cd7554f5ec8fd961548d4fd09e7d22f5b62482e5aeaebd4b0", [:make, :mix, :rebar3], [], "hexpm", "bdb0d2471f453c88ff3908e7686f86f9be327d065cc1ec16fa4540197ea04680"}, 25 | "telemetry": {:hex, :telemetry, "1.0.0", "0f453a102cdf13d506b7c0ab158324c337c41f1cc7548f0bc0e130bbf0ae9452", [:rebar3], [], "hexpm", "73bc09fa59b4a0284efb4624335583c528e07ec9ae76aca96ea0673850aec57a"}, 26 | "toml": {:hex, :toml, "0.5.2", "e471388a8726d1ce51a6b32f864b8228a1eb8edc907a0edf2bb50eab9321b526", [:mix], [], "hexpm", "f1e3dabef71fb510d015fad18c0e05e7c57281001141504c6b69d94e99750a07"}, 27 | "unicode_util_compat": {:hex, :unicode_util_compat, "0.7.0", "bc84380c9ab48177092f43ac89e4dfa2c6d62b40b8bd132b1059ecc7232f9a78", [:rebar3], [], "hexpm", "25eee6d67df61960cf6a794239566599b09e17e668d3700247bc498638152521"}, 28 | } 29 | -------------------------------------------------------------------------------- /parity.sh: -------------------------------------------------------------------------------- 1 | parity --chain dev --unlock=0x00a329c0648769a73afac7f9381e08fb43dbea72 --reseal-min-period 0 --password passfile --jsonrpc-apis "web3,eth,personal,pubsub,net,parity,parity_pubsub,traces,rpc,secretstore" --ipc-apis "web3,eth,personal,pubsub,net,parity,parity_pubsub,parity_accounts,traces,rpc,secretstore" 2 | -------------------------------------------------------------------------------- /test/examples/build/AddressTester.abi: -------------------------------------------------------------------------------- 1 | [{"constant":true,"inputs":[{"name":"a","type":"address"}],"name":"get","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"pure","type":"function"}] -------------------------------------------------------------------------------- /test/examples/build/AddressTester.bin: -------------------------------------------------------------------------------- 1 | 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 -------------------------------------------------------------------------------- /test/examples/build/ArrayTester.abi: -------------------------------------------------------------------------------- 1 | [{"constant":true,"inputs":[{"name":"ints","type":"uint256[5]"}],"name":"staticUint","outputs":[{"name":"","type":"uint256[5]"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[{"name":"ints","type":"uint256[]"}],"name":"dynamicUint","outputs":[{"name":"","type":"uint256[]"}],"payable":false,"stateMutability":"pure","type":"function"}] -------------------------------------------------------------------------------- /test/examples/build/ArrayTester.bin: -------------------------------------------------------------------------------- 1 | 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 -------------------------------------------------------------------------------- /test/examples/build/Complex.abi: -------------------------------------------------------------------------------- 1 | [{"constant":true,"inputs":[],"name":"getBroAndBroBro","outputs":[{"name":"bro","type":"uint256"},{"name":"broBro","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getBarFoo","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_foobar","type":"bytes32"}],"name":"setFooBar","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"getBoth","outputs":[{"name":"","type":"uint256"},{"name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_barFoo","type":"bool"}],"name":"setBarFoo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_fooboo","type":"uint256"}],"name":"getFooBoo","outputs":[{"name":"fooBoo","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"getFooBar","outputs":[{"name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_foo","type":"uint256"}],"name":"setFoo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[{"name":"_foo","type":"uint256"},{"name":"_foobar","type":"bytes32"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"foo","type":"uint256"},{"indexed":false,"name":"person","type":"address"}],"name":"Bar","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"fooboo","type":"bool"},{"indexed":false,"name":"foo","type":"uint256"},{"indexed":false,"name":"foobar","type":"bytes32"}],"name":"FooBar","type":"event"}] -------------------------------------------------------------------------------- /test/examples/build/Complex.bin: -------------------------------------------------------------------------------- 1 | 608060405234801561001057600080fd5b50604051604080610348833981018060405281019080805190602001909291908051906020019092919050505081600081905550806001816000191690555050506102e8806100606000396000f30060806040526004361061008e576000357c0100000000000000000000000000000000000000000000000000000000900463ffffffff1680631b85502e1461009057806354fcb8a6146100ca5780637b07059b146100f957806393affe511461012a5780639aa7c12014610164578063b17e413b14610193578063cfd91f2b146101d4578063dc80035d14610207575b005b34801561009c57600080fd5b506100a5610234565b6040518083815260200182600019166000191681526020019250505060405180910390f35b3480156100d657600080fd5b506100df610248565b604051808215151515815260200191505060405180910390f35b34801561010557600080fd5b50610128600480360381019080803560001916906020019092919050505061025f565b005b34801561013657600080fd5b5061013f61026d565b6040518083815260200182600019166000191681526020019250505060405180910390f35b34801561017057600080fd5b5061019160048036038101908080351515906020019092919050505061027e565b005b34801561019f57600080fd5b506101be6004803603810190808035906020019092919050505061029b565b6040518082815260200191505060405180910390f35b3480156101e057600080fd5b506101e96102a8565b60405180826000191660001916815260200191505060405180910390f35b34801561021357600080fd5b50610232600480360381019080803590602001909291905050506102b2565b005b600080602a60005401600154915091509091565b6000600260009054906101000a900460ff16905090565b806001816000191690555050565b600080600054600154915091509091565b80600260006101000a81548160ff02191690831515021790555050565b6000602a82019050919050565b6000600154905090565b80600081905550505600a165627a7a72305820011e5b9e0027011168cadc65c33ba8af814dfcfbf4a1b9683f48fa17bcb352500029 -------------------------------------------------------------------------------- /test/examples/build/EventTester.abi: -------------------------------------------------------------------------------- 1 | [{"constant":false,"inputs":[{"name":"data","type":"bytes32"}],"name":"simpleIndex","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"data","type":"bytes32"}],"name":"simple","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"anonymous":false,"inputs":[{"indexed":false,"name":"num","type":"uint256"},{"indexed":false,"name":"data","type":"bytes32"}],"name":"Simple","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"num","type":"uint256"},{"indexed":true,"name":"data","type":"bytes32"},{"indexed":false,"name":"otherNum","type":"uint256"}],"name":"SimpleIndex","type":"event"}] -------------------------------------------------------------------------------- /test/examples/build/EventTester.bin: -------------------------------------------------------------------------------- 1 | 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 -------------------------------------------------------------------------------- /test/examples/build/SimpleStorage.abi: -------------------------------------------------------------------------------- 1 | [{"constant":false,"inputs":[{"name":"_data","type":"uint256"}],"name":"set","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"get","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"}] -------------------------------------------------------------------------------- /test/examples/build/SimpleStorage.bin: -------------------------------------------------------------------------------- 1 | 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 -------------------------------------------------------------------------------- /test/examples/contracts/AddressTester.sol: -------------------------------------------------------------------------------- 1 | pragma solidity ^0.4.18; 2 | 3 | contract AddressTester { 4 | function get(address a) public pure returns (address) { 5 | return a; 6 | } 7 | } -------------------------------------------------------------------------------- /test/examples/contracts/ArrayTester.sol: -------------------------------------------------------------------------------- 1 | pragma solidity ^0.4.18; 2 | 3 | contract ArrayTester { 4 | function dynamicUint(uint[] ints) public pure returns (uint[]) { 5 | return ints; 6 | } 7 | 8 | function staticUint(uint[5] ints) public pure returns (uint[5]) { 9 | return ints; 10 | } 11 | } -------------------------------------------------------------------------------- /test/examples/contracts/Complex.sol: -------------------------------------------------------------------------------- 1 | pragma solidity ^0.4.0; 2 | 3 | contract Complex { 4 | 5 | uint foo; 6 | bytes32 foobar; 7 | bool barFoo; 8 | 9 | event Bar(uint foo, address person); 10 | event FooBar(bool fooboo, uint foo, bytes32 foobar); 11 | 12 | constructor(uint _foo, bytes32 _foobar) public { 13 | foo = _foo; 14 | foobar = _foobar; 15 | } 16 | 17 | function getBoth() public view returns (uint, bytes32) { 18 | return (foo, foobar); 19 | } 20 | 21 | function getBarFoo() public view returns (bool) { 22 | return barFoo; 23 | } 24 | 25 | function getFooBar() public view returns (bytes32) { 26 | return foobar; 27 | } 28 | 29 | function getFooBoo(uint _fooboo) public pure returns (uint fooBoo) { 30 | fooBoo = _fooboo + 42; 31 | } 32 | 33 | function getBroAndBroBro() public view returns (uint bro, bytes32 broBro) { 34 | return (foo + 42, foobar); 35 | } 36 | 37 | function setFoo(uint _foo) public { 38 | foo = _foo; 39 | } 40 | 41 | function setFooBar(bytes32 _foobar) public { 42 | foobar = _foobar; 43 | } 44 | 45 | function setBarFoo(bool _barFoo) public { 46 | barFoo = _barFoo; 47 | } 48 | 49 | function() public payable { } 50 | 51 | } -------------------------------------------------------------------------------- /test/examples/contracts/EventTester.sol: -------------------------------------------------------------------------------- 1 | pragma solidity ^0.4.18; 2 | 3 | contract EventTester { 4 | 5 | event Simple(uint256 num, bytes32 data); 6 | 7 | event SimpleIndex(uint256 indexed num, bytes32 indexed data, uint256 otherNum); 8 | 9 | function simple(bytes32 data) public { 10 | emit Simple(42, data); 11 | } 12 | 13 | function simpleIndex(bytes32 data) public { 14 | emit SimpleIndex(46, data, 42); 15 | } 16 | 17 | } 18 | -------------------------------------------------------------------------------- /test/examples/contracts/SimpleStorage.sol: -------------------------------------------------------------------------------- 1 | pragma solidity ^0.4.0; 2 | 3 | contract SimpleStorage { 4 | uint data; 5 | 6 | function set(uint _data) public { 7 | data = _data; 8 | } 9 | 10 | function get() public view returns (uint) { 11 | return data; 12 | } 13 | } -------------------------------------------------------------------------------- /test/exw3/abi_test.exs: -------------------------------------------------------------------------------- 1 | defmodule ExW3.AbiTest do 2 | use ExUnit.Case 3 | 4 | test ".load_abi/1 returns a map keyed by function & event name" do 5 | assert ExW3.Abi.load_abi("test/examples/build/SimpleStorage.abi") == %{ 6 | "get" => %{ 7 | "constant" => true, 8 | "inputs" => [], 9 | "name" => "get", 10 | "outputs" => [%{"name" => "", "type" => "uint256"}], 11 | "payable" => false, 12 | "stateMutability" => "view", 13 | "type" => "function" 14 | }, 15 | "set" => %{ 16 | "constant" => false, 17 | "inputs" => [%{"name" => "_data", "type" => "uint256"}], 18 | "name" => "set", 19 | "outputs" => [], 20 | "payable" => false, 21 | "stateMutability" => "nonpayable", 22 | "type" => "function" 23 | } 24 | } 25 | end 26 | end 27 | -------------------------------------------------------------------------------- /test/exw3/address_test.exs: -------------------------------------------------------------------------------- 1 | defmodule ExW3.AddressTest do 2 | use ExUnit.Case 3 | alias ExW3.Address 4 | 5 | @bytes_address <<25, 154, 209, 226, 223, 37, 243, 29, 135, 172, 137, 205, 225, 158, 82, 44, 130, 62, 90, 166, 30>> 6 | @string_address "199ad1e2df25f31d87ac89cde19e522c823e5aa61e" 7 | @hex_address "0x199ad1e2df25f31d87ac89cde19e522c823e5aa61e" 8 | @checksum_address "0x199ad1E2dF25f31D87AC89cdE19E522c823E5AA61e" 9 | 10 | test ".from_bytes/1 returns an address struct" do 11 | address = Address.from_bytes(@bytes_address) 12 | assert address.bytes == @bytes_address 13 | end 14 | 15 | test ".from_hex/1 returns an address struct with and without the checksum" do 16 | address = Address.from_hex(@hex_address) 17 | assert address.bytes == @bytes_address 18 | 19 | from_checksum_address = Address.from_hex(@checksum_address) 20 | assert from_checksum_address.bytes == @bytes_address 21 | end 22 | 23 | test ".to_bytes/1 returns the bytes of the address struct" do 24 | address = %Address{bytes: @bytes_address} 25 | assert Address.to_bytes(address) == @bytes_address 26 | end 27 | 28 | test ".to_string/1 returns the hex encoded string without a 0x prefix" do 29 | address = %Address{bytes: @bytes_address} 30 | assert Address.to_string(address) == @string_address 31 | end 32 | 33 | test ".to_hex/1 returns the hex encoded string with a 0x prefix" do 34 | address = %Address{bytes: @bytes_address} 35 | assert Address.to_hex(address) == @hex_address 36 | end 37 | 38 | test ".to_checksum/1 returns the hex encoded string with a 0x prefix conforming to EIP-55" do 39 | address = %Address{bytes: @bytes_address} 40 | assert Address.to_checksum(address) == @checksum_address 41 | end 42 | 43 | test ".is_valid_checksum?/1 is true when it conforms to EIP-55" do 44 | assert Address.is_valid_checksum?(@checksum_address) == true 45 | assert Address.is_valid_checksum?(@hex_address) == false 46 | end 47 | end 48 | -------------------------------------------------------------------------------- /test/exw3/client_test.exs: -------------------------------------------------------------------------------- 1 | defmodule ExW3.ClientTest do 2 | use ExUnit.Case 3 | 4 | test ".call_client/1 calls the JSON-RPC method with an empty list of arguments" do 5 | assert {:ok, hex} = ExW3.Client.call_client(:eth_block_number) 6 | assert "0x" <> _ = hex 7 | end 8 | 9 | test ".call_client/2 calls the JSON-RPC method with the given arguments" do 10 | assert {:ok, accounts} = ExW3.Client.call_client(:eth_accounts) 11 | assert Enum.count(accounts) > 0 12 | assert ["0x" <> _ = account] = accounts 13 | 14 | assert {:ok, balance} = ExW3.Client.call_client(:eth_get_balance, [account]) 15 | assert "0x" <> _ = balance 16 | end 17 | 18 | test ".call_client/2 can specifiy a http url with & without params" do 19 | assert {:ok, accounts} = 20 | ExW3.Client.call_client(:eth_accounts, [[url: Ethereumex.Config.rpc_url()]]) 21 | 22 | account = Enum.at(accounts, 0) 23 | 24 | assert {:ok, "0x" <> _} = 25 | ExW3.Client.call_client(:eth_get_balance, [ 26 | account, 27 | "latest", 28 | [url: Ethereumex.Config.rpc_url()] 29 | ]) 30 | 31 | assert ExW3.Client.call_client(:eth_get_balance, [account, "latest", [url: "unsupported"]]) == 32 | {:error, :invalid_client_type} 33 | 34 | assert ExW3.Client.call_client(:eth_get_balance, [ 35 | account, 36 | "latest", 37 | [url: "http://localhost:1234"] 38 | ]) == 39 | {:error, :econnrefused} 40 | 41 | assert ExW3.Client.call_client(:eth_get_balance, [ 42 | account, 43 | "latest", 44 | [url: "https://localhost:1234"] 45 | ]) == 46 | {:error, :econnrefused} 47 | end 48 | end 49 | -------------------------------------------------------------------------------- /test/exw3/contract_test.exs: -------------------------------------------------------------------------------- 1 | defmodule EXW3.ContractTest do 2 | use ExUnit.Case 3 | doctest ExW3.Contract 4 | 5 | @simple_storage_abi ExW3.Abi.load_abi("test/examples/build/SimpleStorage.abi") 6 | 7 | setup_all do 8 | start_supervised!(ExW3.Contract) 9 | :ok 10 | end 11 | 12 | test ".at assigns the address to the state of the registered contract" do 13 | ExW3.Contract.register(:SimpleStorage, abi: @simple_storage_abi) 14 | 15 | assert ExW3.Contract.address(:SimpleStorage) == nil 16 | 17 | accounts = ExW3.accounts() 18 | 19 | {:ok, address, _} = 20 | ExW3.Contract.deploy( 21 | :SimpleStorage, 22 | bin: ExW3.Abi.load_bin("test/examples/build/SimpleStorage.bin"), 23 | args: [], 24 | options: %{ 25 | gas: 300_000, 26 | from: Enum.at(accounts, 0) 27 | } 28 | ) 29 | 30 | assert ExW3.Contract.at(:SimpleStorage, address) == :ok 31 | 32 | state = :sys.get_state(ContractManager) 33 | contract_state = state[:SimpleStorage] 34 | assert Keyword.get(contract_state, :address) == address 35 | assert Keyword.get(contract_state, :abi) == @simple_storage_abi 36 | end 37 | 38 | test ".address returns the registered address for the contract" do 39 | ExW3.Contract.register(:SimpleStorage, abi: @simple_storage_abi) 40 | 41 | assert ExW3.Contract.address(:SimpleStorage) == nil 42 | 43 | accounts = ExW3.accounts() 44 | 45 | {:ok, address, _} = 46 | ExW3.Contract.deploy( 47 | :SimpleStorage, 48 | bin: ExW3.Abi.load_bin("test/examples/build/SimpleStorage.bin"), 49 | args: [], 50 | options: %{ 51 | gas: 300_000, 52 | from: Enum.at(accounts, 0) 53 | } 54 | ) 55 | 56 | assert ExW3.Contract.at(:SimpleStorage, address) == :ok 57 | assert ExW3.Contract.address(:SimpleStorage) == address 58 | end 59 | end 60 | -------------------------------------------------------------------------------- /test/exw3/rpc_test.exs: -------------------------------------------------------------------------------- 1 | defmodule ExW3.RpcTest do 2 | use ExUnit.Case 3 | 4 | describe ".accounts" do 5 | test "returns a list from the eth_accounts JSON-RPC endpoint" do 6 | assert ExW3.accounts() |> is_list 7 | end 8 | 9 | test "can override the http endpoint" do 10 | assert ExW3.accounts(url: Ethereumex.Config.rpc_url()) |> is_list 11 | assert ExW3.accounts(url: "https://localhost:1234") == {:error, :econnrefused} 12 | end 13 | end 14 | 15 | describe ".block_number" do 16 | test "returns the integer block number from the eth_blockNumber JSON-RPC endpoint" do 17 | assert {:ok, bn} = ExW3.block_number() 18 | assert bn |> is_integer 19 | end 20 | 21 | test "can override the http endpoint" do 22 | assert {:ok, _} = ExW3.block_number(url: Ethereumex.Config.rpc_url()) 23 | assert ExW3.block_number(url: "https://localhost:1234") == {:error, :econnrefused} 24 | end 25 | end 26 | 27 | describe ".balance" do 28 | test "returns the latest integer balance from the eth_getBalance JSON-RPC endpoint" do 29 | account = ExW3.accounts() |> Enum.at(0) 30 | assert ExW3.balance(account) |> is_integer 31 | end 32 | 33 | test "can override the http endpoint" do 34 | account = ExW3.accounts() |> Enum.at(0) 35 | assert ExW3.balance(account, url: Ethereumex.Config.rpc_url()) |> is_integer 36 | assert ExW3.balance(account, url: "https://localhost:1234") == {:error, :econnrefused} 37 | end 38 | end 39 | end 40 | -------------------------------------------------------------------------------- /test/exw3/utils_test.exs: -------------------------------------------------------------------------------- 1 | defmodule ExW3.UtilsTest do 2 | use ExUnit.Case 3 | doctest ExW3.Utils 4 | 5 | describe ".hex_to_integer/1" do 6 | test "parses a hex encoded string to an integer" do 7 | assert ExW3.Utils.hex_to_integer("0x1") == {:ok, 1} 8 | assert ExW3.Utils.hex_to_integer("0x2") == {:ok, 2} 9 | assert ExW3.Utils.hex_to_integer("0x2a") == {:ok, 42} 10 | assert ExW3.Utils.hex_to_integer("0x2A") == {:ok, 42} 11 | end 12 | 13 | test "returns an error when the string is not a valid hexidecimal" do 14 | assert ExW3.Utils.hex_to_integer("0x") == {:error, :invalid_hex_string} 15 | assert ExW3.Utils.hex_to_integer("0a") == {:error, :invalid_hex_string} 16 | assert ExW3.Utils.hex_to_integer("0xZ") == {:error, :invalid_hex_string} 17 | end 18 | end 19 | 20 | describe ".integer_to_hex/1" do 21 | test "encodes an integer to hexadecimal" do 22 | assert ExW3.Utils.integer_to_hex(0) == {:ok, "0x0"} 23 | assert ExW3.Utils.integer_to_hex(1) == {:ok, "0x1"} 24 | assert ExW3.Utils.integer_to_hex(42) == {:ok, "0x2A"} 25 | end 26 | 27 | test "returns an error when the integer is negative" do 28 | assert ExW3.Utils.integer_to_hex(-1) == {:error, :negative_integer} 29 | end 30 | 31 | test "returns an error when the value is not an integer" do 32 | assert ExW3.Utils.integer_to_hex(1.1) == {:error, :non_integer} 33 | assert ExW3.Utils.integer_to_hex(nil) == {:error, :non_integer} 34 | end 35 | end 36 | 37 | describe ".keccak256/1" do 38 | test "returns a 0x prepended 32 byte hash of the input" do 39 | hex_hash = ExW3.Utils.keccak256("foo") 40 | assert "0x" <> hash = hex_hash 41 | assert hash == "41b1a0649752af1b28b3dc29a1556eee781e4a4c3a1f7f53f90fa834de098c4d" 42 | 43 | num_bytes = byte_size(hash) 44 | assert trunc(num_bytes / 2) == 32 45 | end 46 | end 47 | 48 | describe ".to_wei/2" do 49 | test "converts a unit to_wei" do 50 | assert ExW3.Utils.to_wei(1, :wei) == 1 51 | assert ExW3.Utils.to_wei(1, :kwei) == 1_000 52 | assert ExW3.Utils.to_wei(1, :Kwei) == 1_000 53 | assert ExW3.Utils.to_wei(1, :babbage) == 1_000 54 | assert ExW3.Utils.to_wei(1, :mwei) == 1_000_000 55 | assert ExW3.Utils.to_wei(1, :Mwei) == 1_000_000 56 | assert ExW3.Utils.to_wei(1, :lovelace) == 1_000_000 57 | assert ExW3.Utils.to_wei(1, :gwei) == 1_000_000_000 58 | assert ExW3.Utils.to_wei(1, :Gwei) == 1_000_000_000 59 | assert ExW3.Utils.to_wei(1, :shannon) == 1_000_000_000 60 | assert ExW3.Utils.to_wei(1, :szabo) == 1_000_000_000_000 61 | assert ExW3.Utils.to_wei(1, :finney) == 1_000_000_000_000_000 62 | assert ExW3.Utils.to_wei(1, :ether) == 1_000_000_000_000_000_000 63 | assert ExW3.Utils.to_wei(1, :kether) == 1_000_000_000_000_000_000_000 64 | assert ExW3.Utils.to_wei(1, :grand) == 1_000_000_000_000_000_000_000 65 | assert ExW3.Utils.to_wei(1, :mether) == 1_000_000_000_000_000_000_000_000 66 | assert ExW3.Utils.to_wei(1, :gether) == 1_000_000_000_000_000_000_000_000_000 67 | assert ExW3.Utils.to_wei(1, :tether) == 1_000_000_000_000_000_000_000_000_000_000 68 | 69 | assert ExW3.Utils.to_wei(1, :kwei) == ExW3.Utils.to_wei(1, :femtoether) 70 | assert ExW3.Utils.to_wei(1, :szabo) == ExW3.Utils.to_wei(1, :microether) 71 | assert ExW3.Utils.to_wei(1, :finney) == ExW3.Utils.to_wei(1, :milliether) 72 | assert ExW3.Utils.to_wei(1, :milli) == ExW3.Utils.to_wei(1, :milliether) 73 | assert ExW3.Utils.to_wei(1, :milli) == ExW3.Utils.to_wei(1000, :micro) 74 | 75 | {:ok, agent} = Agent.start_link(fn -> false end) 76 | 77 | try do 78 | ExW3.Utils.to_wei(1, :wei1) 79 | catch 80 | _ -> Agent.update(agent, fn _ -> true end) 81 | end 82 | 83 | assert Agent.get(agent, fn state -> state end) 84 | end 85 | end 86 | 87 | describe ".from_wei/2" do 88 | test "converts a unit from wei" do 89 | assert ExW3.Utils.from_wei(1_000_000_000_000_000_000, :wei) == 1_000_000_000_000_000_000 90 | assert ExW3.Utils.from_wei(1_000_000_000_000_000_000, :kwei) == 1_000_000_000_000_000 91 | assert ExW3.Utils.from_wei(1_000_000_000_000_000_000, :mwei) == 1_000_000_000_000 92 | assert ExW3.Utils.from_wei(1_000_000_000_000_000_000, :gwei) == 1_000_000_000 93 | assert ExW3.Utils.from_wei(1_000_000_000_000_000_000, :szabo) == 1_000_000 94 | assert ExW3.Utils.from_wei(1_000_000_000_000_000_000, :finney) == 1_000 95 | assert ExW3.Utils.from_wei(1_000_000_000_000_000_000, :ether) == 1 96 | assert ExW3.Utils.from_wei(1_000_000_000_000_000_000, :kether) == 0.001 97 | assert ExW3.Utils.from_wei(1_000_000_000_000_000_000, :grand) == 0.001 98 | assert ExW3.Utils.from_wei(1_000_000_000_000_000_000, :mether) == 0.000001 99 | assert ExW3.Utils.from_wei(1_000_000_000_000_000_000, :gether) == 0.000000001 100 | assert ExW3.Utils.from_wei(1_000_000_000_000_000_000, :tether) == 0.000000000001 101 | end 102 | end 103 | 104 | describe ".to_checksum_address/1" do 105 | test "returns checksum for all caps address" do 106 | assert ExW3.Utils.to_checksum_address( 107 | String.downcase("0x52908400098527886E0F7030069857D2E4169EE7") 108 | ) == 109 | "0x52908400098527886E0F7030069857D2E4169EE7" 110 | 111 | assert ExW3.Utils.to_checksum_address( 112 | String.downcase("0x8617E340B3D01FA5F11F306F4090FD50E238070D") 113 | ) == 114 | "0x8617E340B3D01FA5F11F306F4090FD50E238070D" 115 | end 116 | 117 | test "returns checksumfor all lowercase address" do 118 | assert ExW3.Utils.to_checksum_address( 119 | String.downcase("0xde709f2102306220921060314715629080e2fb77") 120 | ) == 121 | "0xde709f2102306220921060314715629080e2fb77" 122 | 123 | assert ExW3.Utils.to_checksum_address( 124 | String.downcase("0x27b1fdb04752bbc536007a920d24acb045561c26") 125 | ) == 126 | "0x27b1fdb04752bbc536007a920d24acb045561c26" 127 | end 128 | 129 | test "returns checksum for normal addresses" do 130 | assert ExW3.Utils.to_checksum_address( 131 | String.downcase("0x5aAeb6053F3E94C9b9A09f33669435E7Ef1BeAed") 132 | ) == 133 | "0x5aAeb6053F3E94C9b9A09f33669435E7Ef1BeAed" 134 | 135 | assert ExW3.Utils.to_checksum_address( 136 | String.downcase("0xfB6916095ca1df60bB79Ce92cE3Ea74c37c5d359") 137 | ) == 138 | "0xfB6916095ca1df60bB79Ce92cE3Ea74c37c5d359" 139 | 140 | assert ExW3.Utils.to_checksum_address( 141 | String.downcase("0xdbF03B407c01E7cD3CBea99509d93f8DDDC8C6FB") 142 | ) == 143 | "0xdbF03B407c01E7cD3CBea99509d93f8DDDC8C6FB" 144 | 145 | assert ExW3.Utils.to_checksum_address( 146 | String.downcase("0xD1220A0cf47c7B9Be7A2E6BA89F429762e7b9aDb") 147 | ) == 148 | "0xD1220A0cf47c7B9Be7A2E6BA89F429762e7b9aDb" 149 | end 150 | end 151 | 152 | describe ".is_valid_checksum_address/1" do 153 | test "returns valid check for is_valid_checksum_address()" do 154 | assert ExW3.Utils.is_valid_checksum_address("0x52908400098527886E0F7030069857D2E4169EE7") == 155 | true 156 | 157 | assert ExW3.Utils.is_valid_checksum_address("0xdbF03B407c01E7cD3CBea99509d93f8DDDC8C6FB") == 158 | true 159 | 160 | assert ExW3.Utils.is_valid_checksum_address("0xD1220A0cf47c7B9Be7A2E6BA89F429762e7b9aDb") == 161 | true 162 | 163 | assert ExW3.Utils.is_valid_checksum_address("0x5aAeb6053F3E94C9b9A09f33669435E7Ef1BeAed") == 164 | true 165 | 166 | assert ExW3.Utils.is_valid_checksum_address("0x27b1fdb04752bbc536007a920d24acb045561c26") == 167 | true 168 | 169 | assert ExW3.Utils.is_valid_checksum_address("0xde709f2102306220921060314715629080e2fb77") == 170 | true 171 | 172 | assert ExW3.Utils.is_valid_checksum_address("0x8617E340B3D01FA5F11F306F4090FD50E238070D") == 173 | true 174 | 175 | assert ExW3.Utils.is_valid_checksum_address("0x52908400098527886E0F7030069857D2E4169EE7") == 176 | true 177 | end 178 | 179 | test "returns invalid check for is_valid_checksum_address()" do 180 | assert ExW3.Utils.is_valid_checksum_address("0x2f015c60e0be116b1f0cd534704db9c92118fb6a") == 181 | false 182 | end 183 | end 184 | end 185 | -------------------------------------------------------------------------------- /test/exw3_test.exs: -------------------------------------------------------------------------------- 1 | defmodule ExW3Test do 2 | use ExUnit.Case 3 | doctest ExW3 4 | 5 | setup_all do 6 | start_supervised!(ExW3.Contract) 7 | 8 | %{ 9 | simple_storage_abi: ExW3.Abi.load_abi("test/examples/build/SimpleStorage.abi"), 10 | array_tester_abi: ExW3.Abi.load_abi("test/examples/build/ArrayTester.abi"), 11 | event_tester_abi: ExW3.Abi.load_abi("test/examples/build/EventTester.abi"), 12 | complex_abi: ExW3.Abi.load_abi("test/examples/build/Complex.abi"), 13 | address_tester_abi: ExW3.Abi.load_abi("test/examples/build/AddressTester.abi"), 14 | accounts: ExW3.accounts() 15 | } 16 | end 17 | 18 | # Only works with ganache-cli 19 | 20 | # test "mines a block" do 21 | # block_number = ExW3.block_number() 22 | # ExW3.mine() 23 | # assert ExW3.block_number() == block_number + 1 24 | # end 25 | 26 | # test "mines multiple blocks" do 27 | # block_number = ExW3.block_number() 28 | # ExW3.mine(5) 29 | # assert ExW3.block_number() == block_number + 5 30 | # end 31 | 32 | test "starts a Contract GenServer for simple storage contract", context do 33 | ExW3.Contract.register(:SimpleStorage, abi: context[:simple_storage_abi]) 34 | 35 | {:ok, address, _} = 36 | ExW3.Contract.deploy( 37 | :SimpleStorage, 38 | bin: ExW3.Abi.load_bin("test/examples/build/SimpleStorage.bin"), 39 | args: [], 40 | options: %{ 41 | gas: 300_000, 42 | from: Enum.at(context[:accounts], 0) 43 | } 44 | ) 45 | 46 | ExW3.Contract.at(:SimpleStorage, address) 47 | 48 | assert address == ExW3.Contract.address(:SimpleStorage) 49 | 50 | {:ok, data} = ExW3.Contract.call(:SimpleStorage, :get) 51 | 52 | assert data == 0 53 | 54 | ExW3.Contract.send(:SimpleStorage, :set, [1], %{ 55 | from: Enum.at(context[:accounts], 0), 56 | gas: 50_000 57 | }) 58 | 59 | {:ok, data} = ExW3.Contract.call(:SimpleStorage, :get) 60 | 61 | assert data == 1 62 | end 63 | 64 | test "starts a Contract GenServer for array tester contract", context do 65 | ExW3.Contract.register(:ArrayTester, abi: context[:array_tester_abi]) 66 | 67 | {:ok, address, _} = 68 | ExW3.Contract.deploy( 69 | :ArrayTester, 70 | bin: ExW3.Abi.load_bin("test/examples/build/ArrayTester.bin"), 71 | options: %{ 72 | gas: 300_000, 73 | from: Enum.at(context[:accounts], 0) 74 | } 75 | ) 76 | 77 | ExW3.Contract.at(:ArrayTester, address) 78 | 79 | assert address == ExW3.Contract.address(:ArrayTester) 80 | 81 | arr = [1, 2, 3, 4, 5] 82 | 83 | {:ok, result} = ExW3.Contract.call(:ArrayTester, :staticUint, [arr]) 84 | 85 | assert result == arr 86 | 87 | {:ok, result} = ExW3.Contract.call(:ArrayTester, :dynamicUint, [arr]) 88 | 89 | assert result == arr 90 | end 91 | 92 | test "starts a Contract GenServer for event tester contract", context do 93 | ExW3.Contract.register(:EventTester, abi: context[:event_tester_abi]) 94 | 95 | {:ok, address, _} = 96 | ExW3.Contract.deploy( 97 | :EventTester, 98 | bin: ExW3.Abi.load_bin("test/examples/build/EventTester.bin"), 99 | options: %{ 100 | gas: 300_000, 101 | from: Enum.at(context[:accounts], 0) 102 | } 103 | ) 104 | 105 | ExW3.Contract.at(:EventTester, address) 106 | 107 | assert address == ExW3.Contract.address(:EventTester) 108 | 109 | {:ok, tx_hash} = 110 | ExW3.Contract.send(:EventTester, :simple, ["Hello, World!"], %{ 111 | from: Enum.at(context[:accounts], 0), 112 | gas: 30_000 113 | }) 114 | 115 | {:ok, {receipt, logs}} = ExW3.Contract.tx_receipt(:EventTester, tx_hash) 116 | 117 | assert receipt |> is_map 118 | 119 | data = 120 | logs 121 | |> Enum.at(0) 122 | |> Map.get("data") 123 | |> ExW3.Utils.bytes_to_string() 124 | 125 | assert data == "Hello, World!" 126 | 127 | {:ok, tx_hash2} = 128 | ExW3.Contract.send(:EventTester, :simpleIndex, ["Hello, World!"], %{ 129 | from: Enum.at(context[:accounts], 0), 130 | gas: 30_000 131 | }) 132 | 133 | {:ok, {_receipt, logs}} = ExW3.Contract.tx_receipt(:EventTester, tx_hash2) 134 | 135 | otherNum = 136 | logs 137 | |> Enum.at(0) 138 | |> Map.get("otherNum") 139 | 140 | assert otherNum == 42 141 | 142 | num = 143 | logs 144 | |> Enum.at(0) 145 | |> Map.get("num") 146 | 147 | assert num == 46 148 | 149 | data = 150 | logs 151 | |> Enum.at(0) 152 | |> Map.get("data") 153 | |> ExW3.Utils.bytes_to_string() 154 | 155 | assert data == "Hello, World!" 156 | end 157 | 158 | test "Testing formatted get filter changes", context do 159 | ExW3.Contract.register(:EventTester, abi: context[:event_tester_abi]) 160 | 161 | {:ok, address, _} = 162 | ExW3.Contract.deploy( 163 | :EventTester, 164 | bin: ExW3.Abi.load_bin("test/examples/build/EventTester.bin"), 165 | options: %{ 166 | gas: 300_000, 167 | from: Enum.at(context[:accounts], 0) 168 | } 169 | ) 170 | 171 | ExW3.Contract.at(:EventTester, address) 172 | 173 | # Test non indexed events 174 | 175 | {:ok, filter_id} = ExW3.Contract.filter(:EventTester, "Simple") 176 | 177 | {:ok, _tx_hash} = 178 | ExW3.Contract.send( 179 | :EventTester, 180 | :simple, 181 | ["Hello, World!"], 182 | %{from: Enum.at(context[:accounts], 0), gas: 30_000} 183 | ) 184 | 185 | {:ok, change_logs} = ExW3.Contract.get_filter_changes(filter_id) 186 | 187 | event_log = Enum.at(change_logs, 0) 188 | 189 | assert event_log |> is_map 190 | log_data = Map.get(event_log, "data") 191 | assert log_data |> is_map 192 | assert Map.get(log_data, "num") == 42 193 | assert ExW3.Utils.bytes_to_string(Map.get(log_data, "data")) == "Hello, World!" 194 | 195 | ExW3.Contract.uninstall_filter(filter_id) 196 | 197 | # Test indexed events 198 | 199 | {:ok, indexed_filter_id} = ExW3.Contract.filter(:EventTester, "SimpleIndex") 200 | 201 | {:ok, _tx_hash} = 202 | ExW3.Contract.send( 203 | :EventTester, 204 | :simpleIndex, 205 | ["Hello, World!"], 206 | %{from: Enum.at(context[:accounts], 0), gas: 30_000} 207 | ) 208 | 209 | {:ok, change_logs} = ExW3.Contract.get_filter_changes(indexed_filter_id) 210 | 211 | event_log = Enum.at(change_logs, 0) 212 | 213 | assert event_log |> is_map 214 | log_data = Map.get(event_log, "data") 215 | assert log_data |> is_map 216 | assert Map.get(log_data, "num") == 46 217 | assert ExW3.Utils.bytes_to_string(Map.get(log_data, "data")) == "Hello, World!" 218 | assert Map.get(log_data, "otherNum") == 42 219 | ExW3.Contract.uninstall_filter(indexed_filter_id) 220 | 221 | # Test Indexing Indexed Events 222 | 223 | {:ok, indexed_filter_id} = 224 | ExW3.Contract.filter( 225 | :EventTester, 226 | "SimpleIndex", 227 | %{ 228 | topics: [nil, ["Hello, World", "Hello, World!"]], 229 | fromBlock: 1, 230 | toBlock: "latest" 231 | } 232 | ) 233 | 234 | {:ok, _tx_hash} = 235 | ExW3.Contract.send( 236 | :EventTester, 237 | :simpleIndex, 238 | ["Hello, World!"], 239 | %{from: Enum.at(context[:accounts], 0), gas: 30_000} 240 | ) 241 | 242 | {:ok, change_logs} = ExW3.Contract.get_filter_changes(indexed_filter_id) 243 | 244 | event_log = Enum.at(change_logs, 0) 245 | assert event_log |> is_map 246 | log_data = Map.get(event_log, "data") 247 | assert log_data |> is_map 248 | assert Map.get(log_data, "num") == 46 249 | assert ExW3.Utils.bytes_to_string(Map.get(log_data, "data")) == "Hello, World!" 250 | assert Map.get(log_data, "otherNum") == 42 251 | 252 | ExW3.Contract.uninstall_filter(indexed_filter_id) 253 | 254 | # Tests filter with map params 255 | 256 | {:ok, indexed_filter_id} = 257 | ExW3.Contract.filter( 258 | :EventTester, 259 | "SimpleIndex", 260 | %{ 261 | topics: %{num: 46, data: "Hello, World!"} 262 | } 263 | ) 264 | 265 | {:ok, _tx_hash} = 266 | ExW3.Contract.send( 267 | :EventTester, 268 | :simpleIndex, 269 | ["Hello, World!"], 270 | %{from: Enum.at(context[:accounts], 0), gas: 30_000} 271 | ) 272 | 273 | # Demonstrating the delay capability 274 | {:ok, change_logs} = ExW3.Contract.get_filter_changes(indexed_filter_id) 275 | 276 | event_log = Enum.at(change_logs, 0) 277 | assert event_log |> is_map 278 | log_data = Map.get(event_log, "data") 279 | assert log_data |> is_map 280 | assert Map.get(log_data, "num") == 46 281 | assert ExW3.Utils.bytes_to_string(Map.get(log_data, "data")) == "Hello, World!" 282 | assert Map.get(log_data, "otherNum") == 42 283 | 284 | ExW3.Contract.uninstall_filter(indexed_filter_id) 285 | end 286 | 287 | test "starts a Contract GenServer for Complex contract", context do 288 | ExW3.Contract.register(:Complex, abi: context[:complex_abi]) 289 | 290 | {:ok, address, _} = 291 | ExW3.Contract.deploy( 292 | :Complex, 293 | bin: ExW3.Abi.load_bin("test/examples/build/Complex.bin"), 294 | args: [42, "Hello, world!"], 295 | options: %{ 296 | from: Enum.at(context[:accounts], 0), 297 | gas: 300_000 298 | } 299 | ) 300 | 301 | ExW3.Contract.at(:Complex, address) 302 | 303 | assert address == ExW3.Contract.address(:Complex) 304 | 305 | {:ok, foo, foobar} = ExW3.Contract.call(:Complex, :getBoth) 306 | 307 | assert foo == 42 308 | 309 | assert ExW3.Utils.bytes_to_string(foobar) == "Hello, world!" 310 | end 311 | 312 | test "starts a Contract GenServer for AddressTester contract", context do 313 | ExW3.Contract.register(:AddressTester, abi: context[:address_tester_abi]) 314 | 315 | {:ok, address, _} = 316 | ExW3.Contract.deploy( 317 | :AddressTester, 318 | bin: ExW3.Abi.load_bin("test/examples/build/AddressTester.bin"), 319 | options: %{ 320 | from: Enum.at(context[:accounts], 0), 321 | gas: 300_000 322 | } 323 | ) 324 | 325 | ExW3.Contract.at(:AddressTester, address) 326 | 327 | assert address == ExW3.Contract.address(:AddressTester) 328 | 329 | formatted_address = 330 | Enum.at(context[:accounts], 0) 331 | |> ExW3.Utils.format_address() 332 | 333 | {:ok, same_address} = ExW3.Contract.call(:AddressTester, :get, [formatted_address]) 334 | 335 | assert %ExW3.Address{bytes: same_address} |> ExW3.Address.to_hex() == Enum.at(context[:accounts], 0) 336 | end 337 | 338 | test "returns proper error messages at contract deployment", context do 339 | ExW3.Contract.register(:SimpleStorage, abi: context[:simple_storage_abi]) 340 | 341 | assert {:error, :missing_gas} == 342 | ExW3.Contract.deploy( 343 | :SimpleStorage, 344 | bin: ExW3.Abi.load_bin("test/examples/build/SimpleStorage.bin"), 345 | args: [], 346 | options: %{ 347 | from: Enum.at(context[:accounts], 0) 348 | } 349 | ) 350 | 351 | assert {:error, :missing_sender} == 352 | ExW3.Contract.deploy( 353 | :SimpleStorage, 354 | bin: ExW3.Abi.load_bin("test/examples/build/SimpleStorage.bin"), 355 | args: [], 356 | options: %{ 357 | gas: 300_000 358 | } 359 | ) 360 | 361 | assert {:error, :missing_binary} == 362 | ExW3.Contract.deploy( 363 | :SimpleStorage, 364 | args: [], 365 | options: %{ 366 | gas: 300_000, 367 | from: Enum.at(context[:accounts], 0) 368 | } 369 | ) 370 | end 371 | 372 | test "return proper error messages at send and call", context do 373 | ExW3.Contract.register(:SimpleStorage, abi: context[:simple_storage_abi]) 374 | 375 | {:ok, address, _} = 376 | ExW3.Contract.deploy( 377 | :SimpleStorage, 378 | bin: ExW3.Abi.load_bin("test/examples/build/SimpleStorage.bin"), 379 | args: [], 380 | options: %{ 381 | gas: 300_000, 382 | from: Enum.at(context[:accounts], 0) 383 | } 384 | ) 385 | 386 | assert {:error, :missing_address} == ExW3.Contract.call(:SimpleStorage, :get) 387 | 388 | assert {:error, :missing_address} == 389 | ExW3.Contract.send(:SimpleStorage, :set, [1], %{ 390 | from: Enum.at(context[:accounts], 0), 391 | gas: 50_000 392 | }) 393 | 394 | ExW3.Contract.at(:SimpleStorage, address) 395 | 396 | assert {:error, :missing_sender} == 397 | ExW3.Contract.send(:SimpleStorage, :set, [1], %{gas: 50_000}) 398 | 399 | assert {:error, :missing_gas} == 400 | ExW3.Contract.send(:SimpleStorage, :set, [1], %{from: Enum.at(context[:accounts], 0)}) 401 | end 402 | 403 | test ".get_logs/1", context do 404 | ExW3.Contract.register(:EventTester, abi: context[:event_tester_abi]) 405 | 406 | {:ok, address, _} = 407 | ExW3.Contract.deploy( 408 | :EventTester, 409 | bin: ExW3.Abi.load_bin("test/examples/build/EventTester.bin"), 410 | options: %{ 411 | gas: 300_000, 412 | from: Enum.at(context[:accounts], 0) 413 | } 414 | ) 415 | 416 | ExW3.Contract.at(:EventTester, address) 417 | 418 | {:ok, current_block} = ExW3.block_number() 419 | {:ok, from_block} = ExW3.Utils.integer_to_hex(current_block) 420 | 421 | {:ok, simple_tx_hash} = 422 | ExW3.Contract.send(:EventTester, :simple, ["Hello, World!"], %{ 423 | from: Enum.at(context[:accounts], 0), 424 | gas: 30_000 425 | }) 426 | 427 | {:ok, _} = 428 | ExW3.Contract.send(:EventTester, :simpleIndex, ["Hello, World!"], %{ 429 | from: Enum.at(context[:accounts], 0), 430 | gas: 30_000 431 | }) 432 | 433 | filter = %{ 434 | fromBlock: from_block, 435 | toBlock: "latest", 436 | topics: [ExW3.Utils.keccak256("Simple(uint256,bytes32)")] 437 | } 438 | 439 | assert {:ok, logs} = ExW3.get_logs(filter) 440 | assert Enum.count(logs) == 1 441 | 442 | log = Enum.at(logs, 0) 443 | assert log["transactionHash"] == simple_tx_hash 444 | end 445 | end 446 | -------------------------------------------------------------------------------- /test/test_helper.exs: -------------------------------------------------------------------------------- 1 | ExUnit.start() 2 | --------------------------------------------------------------------------------