├── .babelrc
├── .gitignore
├── Readme.md
├── dist
    └── etherest.min.js
├── lib
    ├── address.js
    ├── etherest.js
    ├── query.js
    ├── request.browser.js
    └── request.js
├── package.json
└── webpack.config.js


/.babelrc:
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 1 | {
 2 |   "plugins": [
 3 |   	"transform-object-assign",
 4 |     ["transform-runtime", {
 5 |       "helpers": false,
 6 |       "polyfill": false,
 7 |       "regenerator": false,
 8 |       "moduleName": "babel-runtime"
 9 |     }]
10 |   ]
11 | }


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/.gitignore:
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1 | node_modules
2 | 
3 | *.DS_Store
4 | *.sublime*
5 | 
6 | test.js
7 | spec.js


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/Readme.md:
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  1 | # ETHEREST JavaScript Client
  2 | 
  3 | [ETHEREST](https://www.etherest.io) provides a simple way to make calls and transactions to the Ethereum blockchain using a REST-like API. This library is a lightweight and flexible interface to the API which can be used in both Node.js and browser based projects. It's a fast way to start getting data from and mutating the blockchain without running your own node.
  4 | 
  5 | # Installation
  6 | 
  7 | ## Node.js
  8 | 
  9 | You can install ETHEREST as an npm module: `npm install etherest`
 10 | 
 11 | As well as using server side, it's safe to webpack or browserify the npm module for use in browsers.
 12 | 
 13 | ## Browsers
 14 | 
 15 | A standalone library for web browsers is also provided which can be embeded onto your page using jsdlvr's npm cdn:
 16 | 
 17 | `<script src="https://cdn.jsdelivr.net/npm/etherest@0.1/dist/etherest.min.js"></script>`
 18 | 
 19 | The browser script defines a global variable `Etherest` which is the same as the entry point of the default export of the npm module.
 20 | 
 21 | # Example Usage
 22 | 
 23 | ## Call Without an ABI ([Sandiwch Shop](https://www.etherest.io/main/0x4dc924EeB4D87ab938f5a72fC0ef4460f6b35a8A/getSandwichInfoCaloriesPrice/2))
 24 | 
 25 | ```javascript
 26 | Etherest
 27 | .address('0x4dc924EeB4D87ab938f5a72fC0ef4460f6b35a8A')
 28 | .method('getSandwichInfoCaloriesPrice')
 29 | .param(2, 'uint')
 30 | .returns(['string', 'string', 'string', 'uint256'])
 31 | .call()
 32 | .then(function (result) {
 33 | 	console.log("Got info from the sandwich shop!");
 34 | 	console.log(result);
 35 | });
 36 | ```
 37 | 
 38 | ## Transaction ([Rouleth](https://www.etherest.io/main/0x91A57B2F6FA86B373Bce5716eb26C81cbb004223/betOnNumber/7))
 39 | 
 40 | ```javascript
 41 | Etherest
 42 | .address('0x91A57B2F6FA86B373Bce5716eb26C81cbb004223')
 43 | .method('betOnNumber')
 44 | .param(7, 'uint')
 45 | .sendTransaction({
 46 | 	from: '0xd3c14E7E6Feb41d8210412fc77ef94a72d8B089b',
 47 | 	privateKey: '5172eb05eb9b27e15d4fe963157967b2d6e13e128e79d9b6dc27acf4dcf654ab',
 48 | 	value: 0.01
 49 | })
 50 | .then(function (txid) {
 51 | 	console.log("Transaction ID: " + txid);
 52 | });
 53 | ```
 54 | 
 55 | ## Call Using a Public ABI ([Basic Attention Token](https://www.etherest.io/main/0x0D8775F648430679A709E98d2b0Cb6250d2887EF/tokenExchangeRate))
 56 | 
 57 | ```javascript
 58 | Etherest
 59 | .address('0x0D8775F648430679A709E98d2b0Cb6250d2887EF')
 60 | .loadAbi()
 61 | .then(function (basicAttentionToken) {
 62 | 	basicAttentionToken
 63 | 	.tokenExchangeRate()
 64 | 	.then(function (rate) {
 65 | 		console.log("1 ETH = " + rate + " Basic Attention Tokens");
 66 | 	});
 67 | });
 68 | ```
 69 | 
 70 | Got a private abi you want to use instead? Just provide it by calling `Etherest.address(...).abi([...])`. See the full documentation below for a deep dive into the library's full functionality.
 71 | 
 72 | ## Etherest API
 73 | 
 74 | To learn more about the ETHEREST API check out some of our getting started guides:
 75 | 
 76 | * [Introducing ΞTHEREST — the easiest way to interact with the Ethereum Blockchain](https://blog.w3k.it/introducing-%CE%BEtherest-the-easiest-way-to-interact-with-the-ethereum-blockchain-fab0235f2180)
 77 | * [Automate your ÐICE dividend collection every quarter with ΞTHEREST](https://blog.w3k.it/automate-your-%C3%B0ice-dividend-collection-every-quarter-without-hassle-48bee072b2f7)
 78 | * [Making a call to Ethereum’s pre-eminent eating establishment](https://blog.w3k.it/making-a-call-to-ethereums-pre-eminent-eating-establishment-1545cd44c240)
 79 | 
 80 | # Full Documentation
 81 | 
 82 | <a name="Etherest"></a>
 83 | 
 84 | ## Etherest
 85 | **Kind**: global class  
 86 | 
 87 | * [Etherest](#Etherest)
 88 |     * [new Etherest([options])](#new_Etherest_new)
 89 |     * [.address(address, [network])](#Etherest+address) ⇒ <code>Address</code>
 90 |     * [.request([options])](#Etherest+request) ⇒ <code>Promise</code>
 91 |     * [.call([path])](#Etherest+call) ⇒ <code>Promise</code>
 92 |     * [.sendTransaction([path], options)](#Etherest+sendTransaction) ⇒ <code>Promise</code>
 93 | 
 94 | <a name="new_Etherest_new"></a>
 95 | 
 96 | ### new Etherest([options])
 97 | The main entry point to the client library, can be instantiated or used as a static class upon which all instance methods are available
 98 | 
 99 | **Returns**: [<code>Etherest</code>](#Etherest) - new Etherest instance  
100 | 
101 | | Param | Type | Description |
102 | | --- | --- | --- |
103 | | [options] | <code>Object</code> | options to pass in to a new etherest instance |
104 | | [options.server] | <code>string</code> | url for the api server to use, allows you to roll your own Etherest instance with our open source code |
105 | | [options.apiKey] | <code>string</code> | api key to send with requests |
106 | 
107 | <a name="Etherest+address"></a>
108 | 
109 | ### etherest.address(address, [network]) ⇒ <code>Address</code>
110 | Creates a new address object linked to this etherest instance for executing queries against
111 | 
112 | **Kind**: instance method of [<code>Etherest</code>](#Etherest)  
113 | **Returns**: <code>Address</code> - new address instance  
114 | 
115 | | Param | Type | Description |
116 | | --- | --- | --- |
117 | | address | <code>string</code> | the address to instantiate the object with |
118 | | [network] | <code>string</code> | network the address is associated with (ie main, ropsten etc) |
119 | 
120 | <a name="Etherest+request"></a>
121 | 
122 | ### etherest.request([options]) ⇒ <code>Promise</code>
123 | Executes a request against this instance's etherest server
124 | 
125 | **Kind**: instance method of [<code>Etherest</code>](#Etherest)  
126 | **Returns**: <code>Promise</code> - promise which resolves when the request is complete with the response from etherest  
127 | 
128 | | Param | Type | Description |
129 | | --- | --- | --- |
130 | | [options] | <code>Object</code> | custom options for the request (see request and browser-request for supported options) |
131 | 
132 | <a name="Etherest+call"></a>
133 | 
134 | ### etherest.call([path]) ⇒ <code>Promise</code>
135 | Executes a call request against the etherest server
136 | 
137 | **Kind**: instance method of [<code>Etherest</code>](#Etherest)  
138 | **Returns**: <code>Promise</code> - promise which resolves when the call is completed with the data returned from etherest  
139 | 
140 | | Param | Type | Description |
141 | | --- | --- | --- |
142 | | [path] | <code>string</code> | path to call relative to the base URL of the server |
143 | 
144 | <a name="Etherest+sendTransaction"></a>
145 | 
146 | ### etherest.sendTransaction([path], options) ⇒ <code>Promise</code>
147 | Sends a transaction to the etherest server
148 | 
149 | **Kind**: instance method of [<code>Etherest</code>](#Etherest)  
150 | **Returns**: <code>Promise</code> - a promise which resolves when the transaction has been submitted with an Ethereum txid  
151 | 
152 | | Param | Type | Description |
153 | | --- | --- | --- |
154 | | [path] | <code>string</code> | path to send the transaction to relative to the base URL of the server |
155 | | options | <code>Object</code> | options for the transaction, see options argument of Query.options |
156 | 
157 | <a name="Address"></a>
158 | 
159 | ## Address
160 | **Kind**: global class  
161 | 
162 | * [Address](#Address)
163 |     * [new Address(etherest, address, [network])](#new_Address_new)
164 |     * [.query(method, params)](#Address+query) ⇒ <code>Query</code>
165 |     * [.method(name, ...param)](#Address+method) ⇒ <code>Query</code>
166 |     * [.defineMethod(name, params, returns)](#Address+defineMethod) ⇒ <code>function</code>
167 |     * [.defineCall(name, params, returns)](#Address+defineCall) ⇒ <code>function</code>
168 |     * [.defineTransaction(name, params)](#Address+defineTransaction) ⇒ <code>function</code>
169 |     * [.abi(abi)](#Address+abi) ⇒ [<code>Address</code>](#Address)
170 |     * [.loadAbi()](#Address+loadAbi) ⇒ <code>Promise</code>
171 |     * [.urlEncode(suffix)](#Address+urlEncode) ⇒ <code>string</code>
172 |     * [.call(path)](#Address+call) ⇒ <code>Promise</code>
173 |     * [.sendTransaction(path, options)](#Address+sendTransaction) ⇒ <code>Promise</code>
174 | 
175 | <a name="new_Address_new"></a>
176 | 
177 | ### new Address(etherest, address, [network])
178 | Represents an address on the blockchain
179 | 
180 | **Returns**: [<code>Address</code>](#Address) - new Address instance  
181 | 
182 | | Param | Type | Default | Description |
183 | | --- | --- | --- | --- |
184 | | etherest | <code>Etherest</code> |  | etherest connection instance associated with this address |
185 | | address | <code>string</code> |  | the ethereum address for this instance |
186 | | [network] | <code>string</code> | <code>&quot;main&quot;</code> | the network identifier this instance uses (ie main, ropsten, etc) |
187 | 
188 | <a name="Address+query"></a>
189 | 
190 | ### address.query(method, params) ⇒ <code>Query</code>
191 | Creates a new query object which is linked to this address instance
192 | 
193 | **Kind**: instance method of [<code>Address</code>](#Address)  
194 | **Returns**: <code>Query</code> - new query instance  
195 | 
196 | | Param | Type | Description |
197 | | --- | --- | --- |
198 | | method | <code>string</code> | name of the method which the query will call/sendTransaction against |
199 | | params | <code>Array</code> | array of params which will be passed with this query, can take the form of an array of values or value/type pairs. See constructor of Query |
200 | 
201 | <a name="Address+method"></a>
202 | 
203 | ### address.method(name, ...param) ⇒ <code>Query</code>
204 | Creates a new query object for a method with params passed in as arguments
205 | 
206 | **Kind**: instance method of [<code>Address</code>](#Address)  
207 | **Returns**: <code>Query</code> - new query instance  
208 | 
209 | | Param | Type | Description |
210 | | --- | --- | --- |
211 | | name | <code>string</code> | the name of the method to be used for this query |
212 | | ...param | <code>\*</code> | params to be passed to the query |
213 | 
214 | <a name="Address+defineMethod"></a>
215 | 
216 | ### address.defineMethod(name, params, returns) ⇒ <code>function</code>
217 | Add a method to this instance with a given name and list of param types which returns a query when invoked
218 | 
219 | **Kind**: instance method of [<code>Address</code>](#Address)  
220 | **Returns**: <code>function</code> - reference to the function defined  
221 | 
222 | | Param | Type | Description |
223 | | --- | --- | --- |
224 | | name | <code>string</code> | the name of the method to be used for this query |
225 | | params | <code>Array</code> | array of types of the params to be passed to this method as arguments |
226 | | returns | <code>string</code> | the return type of the method |
227 | 
228 | <a name="Address+defineCall"></a>
229 | 
230 | ### address.defineCall(name, params, returns) ⇒ <code>function</code>
231 | Add a method to this instance with a given name and list of param types which performs a call when invoked
232 | 
233 | **Kind**: instance method of [<code>Address</code>](#Address)  
234 | **Returns**: <code>function</code> - reference to the function defined  
235 | 
236 | | Param | Type | Description |
237 | | --- | --- | --- |
238 | | name | <code>string</code> | the name of the method to be used for this query |
239 | | params | <code>Array</code> | array of types of the params to be passed to this method as arguments |
240 | | returns | <code>string</code> | the return type of the method |
241 | 
242 | <a name="Address+defineTransaction"></a>
243 | 
244 | ### address.defineTransaction(name, params) ⇒ <code>function</code>
245 | Add a method to this instance with a given name and list of param types which creates a transaction when invoked
246 | 
247 | **Kind**: instance method of [<code>Address</code>](#Address)  
248 | **Returns**: <code>function</code> - reference to the function defined  
249 | 
250 | | Param | Type | Description |
251 | | --- | --- | --- |
252 | | name | <code>string</code> | the name of the method to be used for this query |
253 | | params | <code>Array</code> | array of types of the params to be passed to this method as arguments |
254 | 
255 | <a name="Address+abi"></a>
256 | 
257 | ### address.abi(abi) ⇒ [<code>Address</code>](#Address)
258 | Create methods on this instance which match the definitions from a contract abi
259 | 
260 | **Kind**: instance method of [<code>Address</code>](#Address)  
261 | **Returns**: [<code>Address</code>](#Address) - reference to this object for chaining calls  
262 | 
263 | | Param | Type | Description |
264 | | --- | --- | --- |
265 | | abi | <code>Array</code> | application binary interface for this address |
266 | 
267 | <a name="Address+loadAbi"></a>
268 | 
269 | ### address.loadAbi() ⇒ <code>Promise</code>
270 | Load the abi publically associated with this address on etherest
271 | 
272 | **Kind**: instance method of [<code>Address</code>](#Address)  
273 | **Returns**: <code>Promise</code> - promise which resolves when the abi has been loaded with a reference to this address instance  
274 | <a name="Address+urlEncode"></a>
275 | 
276 | ### address.urlEncode(suffix) ⇒ <code>string</code>
277 | Gets the data for a request against an address encoded as a URL to send to etherest
278 | 
279 | **Kind**: instance method of [<code>Address</code>](#Address)  
280 | **Returns**: <code>string</code> - the encoded URL part to execute this query  
281 | 
282 | | Param | Type | Description |
283 | | --- | --- | --- |
284 | | suffix | <code>string</code> | additional string data to add to the end of the URL |
285 | 
286 | <a name="Address+call"></a>
287 | 
288 | ### address.call(path) ⇒ <code>Promise</code>
289 | Executes a call against this address
290 | 
291 | **Kind**: instance method of [<code>Address</code>](#Address)  
292 | **Returns**: <code>Promise</code> - a promise which resolves when the call has been completed with the value returned  
293 | 
294 | | Param | Type | Description |
295 | | --- | --- | --- |
296 | | path | <code>string</code> | a relative path from this address to execute the call against |
297 | 
298 | <a name="Address+sendTransaction"></a>
299 | 
300 | ### address.sendTransaction(path, options) ⇒ <code>Promise</code>
301 | Sends a transaction to the etherest server
302 | 
303 | **Kind**: instance method of [<code>Address</code>](#Address)  
304 | **Returns**: <code>Promise</code> - a promise which resolves when the transaction has been submitted with an Ethereum txid  
305 | 
306 | | Param | Type | Description |
307 | | --- | --- | --- |
308 | | path | <code>string</code> | path to send the transaction to relative to this address |
309 | | options | <code>Object</code> | options for the transaction, see options argument of Query.options |
310 | 
311 | <a name="Query"></a>
312 | 
313 | ## Query
314 | **Kind**: global class  
315 | 
316 | * [Query](#Query)
317 |     * [new Query([address], [method], params)](#new_Query_new)
318 |     * [.param(value, [type])](#Query+param) ⇒ [<code>Query</code>](#Query)
319 |     * [.returns(type)](#Query+returns) ⇒ [<code>Query</code>](#Query)
320 |     * [.urlEncode()](#Query+urlEncode) ⇒ <code>string</code>
321 |     * [.call(address)](#Query+call) ⇒ <code>Promise</code>
322 |     * [.sendTransaction(address, options)](#Query+sendTransaction) ⇒ <code>Promise</code>
323 | 
324 | <a name="new_Query_new"></a>
325 | 
326 | ### new Query([address], [method], params)
327 | Represents a single instance of an interaction with the blockchain, can be executed as a transaction or call
328 | 
329 | **Returns**: [<code>Query</code>](#Query) - new Query instance  
330 | 
331 | | Param | Type | Description |
332 | | --- | --- | --- |
333 | | [address] | <code>Address</code> | address instance associated with this query |
334 | | [method] | <code>string</code> | the contract method this query will target |
335 | | params | <code>Array</code> | either a flat array of values which are the parameters or an array of type/value pairs |
336 | | params[].value | <code>string</code> | the value of a param |
337 | | params[].type | <code>string</code> | the type of a param |
338 | 
339 | <a name="Query+param"></a>
340 | 
341 | ### query.param(value, [type]) ⇒ [<code>Query</code>](#Query)
342 | Adds a param to the call/transaction to be sent
343 | 
344 | **Kind**: instance method of [<code>Query</code>](#Query)  
345 | **Returns**: [<code>Query</code>](#Query) - instance of this query to chain method calls from  
346 | 
347 | | Param | Type | Description |
348 | | --- | --- | --- |
349 | | value | <code>mixed</code> | the value of the parameter in this query |
350 | | [type] | <code>string</code> | the type of the the parameter if we are not aware of it |
351 | 
352 | <a name="Query+returns"></a>
353 | 
354 | ### query.returns(type) ⇒ [<code>Query</code>](#Query)
355 | Set the return type for a query
356 | 
357 | **Kind**: instance method of [<code>Query</code>](#Query)  
358 | **Returns**: [<code>Query</code>](#Query) - instance of this query to chain method calls from  
359 | 
360 | | Param | Type | Description |
361 | | --- | --- | --- |
362 | | type | <code>string</code> | the type of the data returned by the query |
363 | 
364 | <a name="Query+urlEncode"></a>
365 | 
366 | ### query.urlEncode() ⇒ <code>string</code>
367 | Gets the data for this query encoded as a URL to send to etherest against a particular address
368 | 
369 | **Kind**: instance method of [<code>Query</code>](#Query)  
370 | **Returns**: <code>string</code> - the encoded URL part to execute this query  
371 | <a name="Query+call"></a>
372 | 
373 | ### query.call(address) ⇒ <code>Promise</code>
374 | Executes this query as a call
375 | 
376 | **Kind**: instance method of [<code>Query</code>](#Query)  
377 | **Returns**: <code>Promise</code> - a promise which resolves when the call has been completed with the value returned  
378 | 
379 | | Param | Type | Description |
380 | | --- | --- | --- |
381 | | address | <code>Address</code> | the address to execute the call against, required if the query was not constructed with one |
382 | 
383 | <a name="Query+sendTransaction"></a>
384 | 
385 | ### query.sendTransaction(address, options) ⇒ <code>Promise</code>
386 | Executes this query as a transaction
387 | 
388 | **Kind**: instance method of [<code>Query</code>](#Query)  
389 | **Returns**: <code>Promise</code> - a promise which resolves when the transaction has been submitted to the blockchain with a transaction id string  
390 | 
391 | | Param | Type | Default | Description |
392 | | --- | --- | --- | --- |
393 | | address | <code>Address</code> |  | the address to send the transaction to, required if the query was not constructed with one |
394 | | options | <code>Object</code> |  | options for the transaction |
395 | | options.from | <code>string</code> |  | the address this transaction is being sent from |
396 | | options.privateKey | <code>string</code> |  | the private key of the address this transaction is being sent from |
397 | | [options.value] | <code>number</code> | <code>0</code> | the amount ot eth to send with this transaction (1 = 1.0 Ether sent) |
398 | | [options.gasPrice] | <code>number</code> | <code>20</code> | the price to pay for gas for this transaction in gwei |
399 | | [options.gasLimit] | <code>number</code> | <code>200000</code> | the maximum amount of gas this transaction is allowed to use |


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--------------------------------------------------------------------------------
/lib/address.js:
--------------------------------------------------------------------------------
  1 | var forEach = require('lodash/forEach');
  2 | var map = require('lodash/map');
  3 | 
  4 | var Query = require('./query');
  5 | 
  6 | /**
  7 |  * Represents an address on the blockchain
  8 |  * @constructor
  9 |  * @param {Etherest} etherest - etherest connection instance associated with this address
 10 |  * @param {string} address - the ethereum address for this instance
 11 |  * @param {string} [network=main] - the network identifier this instance uses (ie main, ropsten, etc)
 12 |  * @returns {Address} new Address instance
 13 |  */
 14 | function Address (etherest, address, network) {
 15 | 	if (!address) {
 16 | 		network = address;
 17 | 		address = etherest;
 18 | 		etherest = null;
 19 | 	}
 20 | 
 21 | 	network = network || 'main';
 22 | 
 23 | 	this.address = address;
 24 | 	this.etherest = etherest;
 25 | 	this.network = network;
 26 | 
 27 | 	return this;
 28 | }
 29 | 
 30 | /**
 31 |  * Creates a new query object which is linked to this address instance
 32 |  * @param {string} method - name of the method which the query will call/sendTransaction against
 33 |  * @param {Array} params - array of params which will be passed with this query, can take the form of an array of values or value/type pairs. See constructor of Query
 34 |  * @returns {Query} new query instance
 35 |  */
 36 | Address.prototype.query = function (method, params) {
 37 | 	return new Query(this, method);
 38 | }
 39 | 
 40 | /**
 41 |  * Creates a new query object for a method with params passed in as arguments
 42 |  * @param {string} name - the name of the method to be used for this query
 43 |  * @param {...*} param - params to be passed to the query
 44 |  * @returns {Query} new query instance
 45 |  */
 46 | Address.prototype.method = function (name /*, param1, param2, ...*/) {
 47 | 	var params = Array.prototype.slice.call(arguments);
 48 | 	var name = params.shift();
 49 | 
 50 | 	var query = this.query(name, params);
 51 | 
 52 | 	return query;
 53 | }
 54 | 
 55 | /**
 56 |  * Add a method to this instance with a given name and list of param types which returns a query when invoked
 57 |  * @param {string} name - the name of the method to be used for this query
 58 |  * @param {Array} params - array of types of the params to be passed to this method as arguments
 59 |  * @param {string} returns - the return type of the method
 60 |  * @returns {function} reference to the function defined
 61 |  */
 62 | Address.prototype.defineMethod = function (name, params, returns) {
 63 | 	this[name] = function () {
 64 | 		var args = Array.prototype.slice.call(arguments);
 65 | 		var query = this.query(name);
 66 | 
 67 | 		if (returns) query.returns(returns);
 68 | 
 69 | 		forEach(params, function (type, index) {
 70 | 			query.param(args[index], type);
 71 | 		});
 72 | 
 73 | 		return query;
 74 | 	}
 75 | 
 76 | 	return this[name];
 77 | }
 78 | 
 79 | /**
 80 |  * Add a method to this instance with a given name and list of param types which performs a call when invoked
 81 |  * @param {string} name - the name of the method to be used for this query
 82 |  * @param {Array} params - array of types of the params to be passed to this method as arguments
 83 |  * @param {string} returns - the return type of the method
 84 |  * @returns {function} reference to the function defined
 85 |  */
 86 | Address.prototype.defineCall = function (name, params, returns) {
 87 | 	var method = this.defineMethod(name, params, returns);
 88 | 
 89 | 	this[name] = function () {
 90 | 		var query = method.apply(this, Array.prototype.slice.call(arguments));
 91 | 
 92 | 		return query.call();
 93 | 	}
 94 | 
 95 | 	return this[name];
 96 | }
 97 | 
 98 | /**
 99 |  * Add a method to this instance with a given name and list of param types which creates a transaction when invoked
100 |  * @param {string} name - the name of the method to be used for this query
101 |  * @param {Array} params - array of types of the params to be passed to this method as arguments
102 |  * @returns {function} reference to the function defined
103 |  */
104 | Address.prototype.defineTransaction = function (name, params) {
105 | 	var method = this.defineMethod(name, params);
106 | 
107 | 	this[name] = function () {
108 | 		var args = Array.prototype.slice.call(arguments);
109 | 		var options = args[args.length - 1]; // options should be passed in as last parameter
110 | 
111 | 		var query = method.apply(this, args.slice(0, args.length - 1));
112 | 		return query.sendTransaction(options);
113 | 	}
114 | 
115 | 	return this[name];
116 | }
117 | 
118 | /**
119 |  * Create methods on this instance which match the definitions from a contract abi
120 |  * @param {Array} abi - application binary interface for this address
121 |  * @returns {Address} reference to this object for chaining calls
122 |  */
123 | Address.prototype.abi = function (abi) {
124 | 	var defineTransaction = this.defineTransaction;
125 | 	var defineCall = this.defineCall;
126 | 
127 | 	var self = this;
128 | 	forEach(abi, function (define) {
129 | 		if (define.type === 'function') {
130 | 			var invoke = define.constant ? defineCall : defineTransaction;
131 | 
132 | 			invoke.call(self, define.name, arrayToTypes(define.inputs), arrayToTypes(define.outputs));
133 | 		}
134 | 	});
135 | 
136 | 	return this;
137 | }
138 | 
139 | /**
140 |  * Load the abi publically associated with this address on etherest
141 |  * @returns {Promise} promise which resolves when the abi has been loaded with a reference to this address instance
142 |  */
143 | Address.prototype.loadAbi = function () {
144 | 	var self = this;
145 | 	return this.call()
146 | 	.then(function (response) {
147 | 		if (response.abi && response.abi) self.abi(response.abi);
148 | 
149 | 		return self;
150 | 	});
151 | }
152 | 
153 | /**
154 |  * Gets the data for a request against an address encoded as a URL to send to etherest
155 |  * @param {string} suffix - additional string data to add to the end of the URL
156 |  * @returns {string} the encoded URL part to execute this query
157 |  */
158 | Address.prototype.urlEncode = function (suffix) {
159 | 	suffix = suffix || '';
160 | 
161 | 	var encoded = this.network + '/' + this.address + '/' + suffix;
162 | 
163 | 	return encoded;
164 | }
165 | 
166 | /**
167 |  * Executes a call against this address
168 |  * @param {string} path - a relative path from this address to execute the call against
169 |  * @returns {Promise} a promise which resolves when the call has been completed with the value returned
170 |  */
171 | Address.prototype.call = function (path) {
172 | 	var encoded = this.urlEncode(path);
173 | 
174 | 	return this.etherest.call(encoded);
175 | }
176 | 
177 | /**
178 |  * Sends a transaction to the etherest server
179 |  * @param {string} path - path to send the transaction to relative to this address
180 |  * @param {Object} options - options for the transaction, see options argument of Query.options
181 |  * @returns {Promise} a promise which resolves when the transaction has been submitted with an Ethereum txid
182 |  */
183 | Address.prototype.sendTransaction = function (path, options) {
184 | 	var encoded = this.urlEncode(path);
185 | 
186 | 	return this.etherest.sendTransaction(encoded, options);
187 | }
188 | 
189 | module.exports = Address;
190 | 
191 | function arrayToTypes (inputs) {
192 | 	return map(inputs, function (input) {
193 | 		return input.type;
194 | 	});
195 | }


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/lib/etherest.js:
--------------------------------------------------------------------------------
  1 | var request = require('./request');
  2 | var Address = require('./address');
  3 | 
  4 | /**
  5 |  * The main entry point to the client library, can be instantiated or used as a static class upon which all instance methods are available
  6 |  * @constructor
  7 |  * @param {Object=} options - options to pass in to a new etherest instance 
  8 |  * @param {string=} options.server - url for the api server to use, allows you to roll your own Etherest instance with our open source code
  9 |  * @param {string=} options.apiKey - api key to send with requests
 10 |  * @returns {Etherest} new Etherest instance
 11 |  */
 12 | function Etherest (options) {
 13 | 	options = options || {}
 14 | 
 15 | 	this.server = options.server || Etherest.server;
 16 | 	this.apiKey = options.apiKey || Etherest.apiKey;
 17 | 
 18 | 	return this;
 19 | }
 20 | 
 21 | Etherest.server = 'https://api.etherest.io:8080/v1/';
 22 | 
 23 | /**
 24 |  * Creates a new address object linked to this etherest instance for executing queries against
 25 |  * @param {string} address - the address to instantiate the object with
 26 |  * @param {string=} network - network the address is associated with (ie main, ropsten etc)
 27 |  * @returns {Address} new address instance
 28 |  */
 29 | Etherest.prototype.address = function (address, network) {
 30 | 	return new Address(this, address, network);
 31 | }
 32 | 
 33 | /**
 34 |  * Executes a request against this instance's etherest server
 35 |  * @param {Object=} options - custom options for the request (see request and browser-request for supported options)
 36 |  * @returns {Promise} promise which resolves when the request is complete with the response from etherest
 37 |  */
 38 | Etherest.prototype.request = function (options) {
 39 | 	var apiKey = this.apiKEy;
 40 | 
 41 | 	return new Promise(function (resolve, reject) {
 42 | 		request(Object.assign({
 43 | 			headers: {
 44 | 				apiKey: apiKey
 45 | 			}
 46 | 		}, options || {}), function (err, response, body) {
 47 | 			if (err) {
 48 | 				reject(err);
 49 | 				return;
 50 | 			}
 51 | 
 52 | 			try {
 53 | 				var result = JSON.parse(body);
 54 | 			} catch (err) {
 55 | 				reject(err);
 56 | 			}
 57 | 
 58 | 			if (result.error) {
 59 | 				reject(result.error);
 60 | 				return;
 61 | 			}
 62 | 
 63 | 			resolve(result.response);
 64 | 		});
 65 | 	});
 66 | }
 67 | 
 68 | /**
 69 |  * Executes a call request against the etherest server
 70 |  * @param {string=} path - path to call relative to the base URL of the server
 71 |  * @returns {Promise} promise which resolves when the call is completed with the data returned from etherest
 72 |  */
 73 | Etherest.prototype.call = function (path) {
 74 | 	var url = this.server + (path || '');
 75 | 
 76 | 	return this.request({
 77 | 		method: 'GET',
 78 | 		url: url
 79 | 	});
 80 | }
 81 | 
 82 | /**
 83 |  * Sends a transaction to the etherest server
 84 |  * @param {string=} path - path to send the transaction to relative to the base URL of the server
 85 |  * @param {Object} options - options for the transaction, see options argument of Query.options
 86 |  * @returns {Promise} a promise which resolves when the transaction has been submitted with an Ethereum txid
 87 |  */
 88 | Etherest.prototype.sendTransaction = function (path, options) {
 89 | 	if (!path) {
 90 | 		options = path;
 91 | 		path = null;
 92 | 	}
 93 | 
 94 | 	options = options || {};
 95 | 	options.gasLimit = options.gasLimit || 200000;
 96 | 	options.gasPrice = options.gasPrice || 20;
 97 | 
 98 | 	console.log(options);
 99 | 
100 | 	var url = this.server + (path || '');
101 | 
102 | 	return this.request({
103 | 		method: 'POST',
104 | 		url: url,
105 | 		form: options
106 | 	});
107 | }
108 | 
109 | // make etherest work without instantiating a new instance if we just want to use the default configuration
110 | Object.assign(Etherest, Etherest.prototype);
111 | 
112 | module.exports = Etherest;


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/lib/query.js:
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  1 | var forEach = require('lodash/forEach');
  2 | var map = require('lodash/map');
  3 | 
  4 | /**
  5 |  * Represents a single instance of an interaction with the blockchain, can be executed as a transaction or call
  6 |  * @constructor
  7 |  * @param {Address=} address - address instance associated with this query
  8 |  * @param {string=} method - the contract method this query will target
  9 |  * @param {Array} params - either a flat array of values which are the parameters or an array of type/value pairs
 10 |  * @param {string} params[].value - the value of a param
 11 |  * @param {string} params[].type - the type of a param
 12 |  * @returns {Query} new Query instance
 13 |  */
 14 | function Query (address, method, params) {
 15 | 	if (!method) {
 16 | 		params = method;
 17 | 		method = address;
 18 | 		address = null;
 19 | 	}
 20 | 
 21 | 	this.address = address;
 22 | 	this.method = method;
 23 | 
 24 | 	// clean up the params passed in so that we support both passing in an array of values as params OR an array of type/value param objects
 25 | 	this.params = map(params || [], function (param) {
 26 | 		if (typeof param === 'Object' && param.value) {
 27 | 			return param;
 28 | 		} else {
 29 | 			return {value: param}
 30 | 		}
 31 | 	});
 32 | 
 33 | 	this.return = null;
 34 | 
 35 | 	return this;
 36 | }
 37 | 
 38 | /**
 39 |  * Adds a param to the call/transaction to be sent
 40 |  * @param {mixed} value - the value of the parameter in this query
 41 |  * @param {string=} type - the type of the the parameter if we are not aware of it
 42 |  * @returns {Query} instance of this query to chain method calls from
 43 |  */
 44 | Query.prototype.param = function (value, type) {
 45 | 	this.params.push({
 46 | 		value: value,
 47 | 		type: type
 48 | 	});
 49 | 
 50 | 	return this;
 51 | }
 52 | 
 53 | /**
 54 |  * Set the return type for a query
 55 |  * @param {string} type - the type of the data returned by the query
 56 |  * @returns {Query} instance of this query to chain method calls from
 57 |  */
 58 | Query.prototype.returns = function (type) {
 59 | 	this.return = type;
 60 | 
 61 | 	return this;
 62 | }
 63 | 
 64 | /**
 65 |  * Gets the data for this query encoded as a URL to send to etherest against a particular address
 66 |  * @returns {string} the encoded URL part to execute this query
 67 |  */
 68 | Query.prototype.urlEncode = function () {
 69 | 	var encoded = this.method;
 70 | 	if (this.return) encoded += ':' + encodeType(this.return);
 71 | 	encoded += '/';
 72 | 
 73 | 	forEach(this.params, function (param) {
 74 | 		if (param.type) encoded += param.type + ':';
 75 | 		encoded += param.value;
 76 | 		encoded += '/';
 77 | 	});
 78 | 
 79 | 	return encoded;
 80 | }
 81 | 
 82 | /**
 83 |  * Executes this query as a call
 84 |  * @param {Address} address - the address to execute the call against, required if the query was not constructed with one
 85 |  * @returns {Promise} a promise which resolves when the call has been completed with the value returned
 86 |  */
 87 | Query.prototype.call = function (address) {
 88 | 	if (!address) address = this.address;
 89 | 	if (!address) return Promise.reject("no address provided to execute call using");
 90 | 
 91 | 	var encoded = this.urlEncode();
 92 | 
 93 | 	return address.call(encoded);
 94 | }
 95 | 
 96 | /**
 97 |  * Executes this query as a transaction
 98 |  * @param {Address} address - the address to send the transaction to, required if the query was not constructed with one
 99 |  * @param {Object} options - options for the transaction
100 |  * @param {string} options.from - the address this transaction is being sent from
101 |  * @param {string} options.privateKey - the private key of the address this transaction is being sent from
102 |  * @param {number} [options.value=0] - the amount ot eth to send with this transaction (1 = 1.0 Ether sent)
103 |  * @param {number} [options.gasPrice=20] - the price to pay for gas for this transaction in gwei
104 |  * @param {number} [options.gasLimit=200000] - the maximum amount of gas this transaction is allowed to use
105 |  * @returns {Promise} a promise which resolves when the transaction has been submitted to the blockchain with a transaction id string
106 |  */
107 | Query.prototype.sendTransaction = function (address, options) {
108 | 	if (!options) {
109 | 		options = address;
110 | 		address = null;
111 | 	}
112 | 
113 | 	if (!address) address = this.address;
114 | 	if (!address) return Promise.reject("no address provided to send transaction with");
115 | 
116 | 	var encoded = this.urlEncode();
117 | 
118 | 	return address.sendTransaction(encoded, options);
119 | }
120 | 
121 | module.exports = Query;
122 | 
123 | function encodeType (type) {
124 | 	if (type.constructor === Array) {
125 | 		return type.join(',');
126 | 	} else {
127 | 		return type;
128 | 	}
129 | }


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/lib/request.browser.js:
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1 | module.exports = require('browser-request');


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/lib/request.js:
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1 | module.exports = require('request');


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/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "etherest",
 3 |   "version": "0.1.0",
 4 |   "description": "ETHEREST client library for interacting with the Ethereum blockchain",
 5 |   "main": "lib/etherest.js",
 6 |   "scripts": {
 7 |     "build": "webpack"
 8 |   },
 9 |   "repository": {
10 |     "type": "git",
11 |     "url": "https://github.com/w3kit/etherest-client-js"
12 |   },
13 |   "homepage": "https://www.etherest.io/",
14 |   "bugs": {
15 |     "url": "https://github.com/w3kit/etherest-client-js/issues"
16 |   },
17 |   "keywords": [
18 |     "ethereum",
19 |     "blockchain",
20 |     "etherest",
21 |     "api"
22 |   ],
23 |   "author": "w3kit",
24 |   "license": "ISC",
25 |   "dependencies": {
26 |     "babel-runtime": "^6.26.0",
27 |     "browser-request": "^0.3.3",
28 |     "lodash": "^4.17.4",
29 |     "request": "^2.81.0"
30 |   },
31 |   "devDependencies": {
32 |     "babel": "^6.23.0",
33 |     "babel-core": "^6.26.0",
34 |     "babel-loader": "^7.1.2",
35 |     "babel-plugin-transform-object-assign": "^6.22.0",
36 |     "babel-plugin-transform-runtime": "^6.23.0",
37 |     "babel-polyfill": "^6.26.0",
38 |     "babel-preset-es2015": "^6.24.1",
39 |     "webpack": "^3.5.5"
40 |   },
41 |   "browser": {
42 |     "./lib/request.js": "./lib/request.browser.js"
43 |   }
44 | }


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/webpack.config.js:
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 1 | var webpack = require('webpack');
 2 | var path = require('path');
 3 | var UglifyJsPlugin = webpack.optimize.UglifyJsPlugin;
 4 | 
 5 | var libraryName = 'Etherest';
 6 | var outputFile = 'etherest.min.js';
 7 | 
 8 | var config = {
 9 |   entry: __dirname + '/lib/etherest.js',
10 |   output: {
11 |     path: __dirname + '/dist',
12 |     filename: outputFile,
13 |     library: libraryName,
14 |     libraryTarget: 'umd',
15 |     umdNamedDefine: true
16 |   },
17 |   module: {
18 |     loaders: [
19 |       {
20 |         test: /(\.jsx|\.js)$/,
21 |         loader: 'babel-loader',
22 |         exclude: /(node_modules|bower_components|dist)/
23 |       }
24 |     ]
25 |   },
26 |   plugins: [
27 |   	new UglifyJsPlugin({ minimize: true })
28 |   ]
29 | }
30 | 
31 | module.exports = config;


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