6 | 
7 |
8 | ### Transactions
9 | 
10 |
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/smart_contract/package.json:
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1 | {
2 | "name": "smart_contract",
3 | "version": "1.0.0",
4 | "description": "",
5 | "main": "index.js",
6 | "scripts": {
7 | "test": "echo \"Error: no test specified\" && exit 1"
8 | },
9 | "keywords": [],
10 | "author": "",
11 | "license": "ISC",
12 | "devDependencies": {
13 | "@nomiclabs/hardhat-ethers": "^2.0.5",
14 | "@nomiclabs/hardhat-waffle": "^2.0.3",
15 | "chai": "^4.3.6",
16 | "ethereum-waffle": "^3.4.4",
17 | "ethers": "^5.6.2",
18 | "hardhat": "^2.9.2"
19 | }
20 | }
21 |
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/client/package.json:
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1 | {
2 | "name": "krypt",
3 | "private": true,
4 | "version": "0.0.0",
5 | "scripts": {
6 | "dev": "vite",
7 | "build": "vite build",
8 | "preview": "vite preview"
9 | },
10 | "dependencies": {
11 | "@tailwindcss/forms": "^0.5.0",
12 | "ethers": "^5.6.2",
13 | "react": "^17.0.2",
14 | "react-dom": "^17.0.2",
15 | "react-icons": "^4.3.1"
16 | },
17 | "devDependencies": {
18 | "@vitejs/plugin-react": "^1.0.7",
19 | "autoprefixer": "^10.4.4",
20 | "postcss": "^8.4.12",
21 | "tailwindcss": "^3.0.23",
22 | "vite": "^2.8.0"
23 | }
24 | }
25 |
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/smart_contract/test/sample-test.js:
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1 | const { expect } = require("chai");
2 | const { ethers } = require("hardhat");
3 |
4 | describe("Greeter", function () {
5 | it("Should return the new greeting once it's changed", async function () {
6 | const Greeter = await ethers.getContractFactory("Greeter");
7 | const greeter = await Greeter.deploy("Hello, world!");
8 | await greeter.deployed();
9 |
10 | expect(await greeter.greet()).to.equal("Hello, world!");
11 |
12 | const setGreetingTx = await greeter.setGreeting("Hola, mundo!");
13 |
14 | // wait until the transaction is mined
15 | await setGreetingTx.wait();
16 |
17 | expect(await greeter.greet()).to.equal("Hola, mundo!");
18 | });
19 | });
20 |
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/client/src/App.css:
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1 | .App {
2 | text-align: center;
3 | }
4 |
5 | .App-logo {
6 | height: 40vmin;
7 | pointer-events: none;
8 | }
9 |
10 | @media (prefers-reduced-motion: no-preference) {
11 | .App-logo {
12 | animation: App-logo-spin infinite 20s linear;
13 | }
14 | }
15 |
16 | .App-header {
17 | background-color: #282c34;
18 | min-height: 100vh;
19 | display: flex;
20 | flex-direction: column;
21 | align-items: center;
22 | justify-content: center;
23 | font-size: calc(10px + 2vmin);
24 | color: white;
25 | }
26 |
27 | .App-link {
28 | color: #61dafb;
29 | }
30 |
31 | @keyframes App-logo-spin {
32 | from {
33 | transform: rotate(0deg);
34 | }
35 | to {
36 | transform: rotate(360deg);
37 | }
38 | }
39 |
40 | button {
41 | font-size: calc(10px + 2vmin);
42 | }
43 |
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/client/src/hooks/useFetch.jsx:
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1 | import { useEffect, useState } from "react";
2 |
3 | const APIKEY = "I3mwc33DxfJdBcbq0hV2FTkK7nLmzSIW";
4 |
5 | const useFetch = ({ keyword }) => {
6 | const [gifUrl, setGifUrl] = useState("");
7 |
8 | const fetchGifs = async () => {
9 | try {
10 | const response = await fetch(`https://api.giphy.com/v1/gifs/search?api_key=${APIKEY}&q=${keyword.split(" ").join("")}&limit=1`);
11 | const { data } = await response.json();
12 |
13 | setGifUrl(data[0]?.images?.downsized_medium.url);
14 | } catch (error) {
15 | setGifUrl("https://metro.co.uk/wp-content/uploads/2015/05/pokemon_crying.gif?quality=90&strip=all&zoom=1&resize=500%2C284");
16 | }
17 | };
18 |
19 | useEffect(() => {
20 | if (keyword) fetchGifs();
21 | }, [keyword]);
22 |
23 | return gifUrl;
24 | };
25 |
26 | export default useFetch;
--------------------------------------------------------------------------------
/client/tailwind.config.js:
--------------------------------------------------------------------------------
1 | module.exports = {
2 | purge: ["./src/**/*.{js,jsx,ts,tsx}", "./public/index.html"],
3 | mode: "jit",
4 | darkMode: false, // or 'media' or 'class'
5 | theme: {
6 | fontFamily: {
7 | display: ["Open Sans", "sans-serif"],
8 | body: ["Open Sans", "sans-serif"],
9 | },
10 | extend: {
11 | screens: {
12 | mf: "990px",
13 | },
14 | keyframes: {
15 | "slide-in": {
16 | "0%": {
17 | "-webkit-transform": "translateX(120%)",
18 | transform: "translateX(120%)",
19 | },
20 | "100%": {
21 | "-webkit-transform": "translateX(0%)",
22 | transform: "translateX(0%)",
23 | },
24 | },
25 | },
26 | animation: {
27 | "slide-in": "slide-in 0.5s ease-out",
28 | },
29 | },
30 | },
31 | variants: {
32 | extend: {},
33 | },
34 | plugins: [require("@tailwindcss/forms")],
35 | };
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/smart_contract/contracts/Transactions.sol:
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1 | // SPDX-License-Identifier: UNLICENSED
2 |
3 | pragma solidity ^0.8.0;
4 |
5 | contract Transactions {
6 |
7 | uint256 transactionCount;
8 |
9 | event Transfer (address from, address receiver, uint amount, string message, uint256 timestamp, string keyword);
10 |
11 | struct TransferStruct {
12 | address sender;
13 | address receiver;
14 | uint amount;
15 | string message;
16 | uint256 timestamp;
17 | string keyword;
18 | }
19 |
20 | TransferStruct[] transactions;
21 |
22 | function addToBlockchain(address payable receiver, uint amount, string memory message, string memory keyword) public {
23 | transactionCount+=1;
24 | transactions.push(TransferStruct(msg.sender, receiver, amount, message, block.timestamp, keyword));
25 |
26 | emit Transfer(msg.sender, receiver, amount, message, block.timestamp, keyword);
27 | }
28 |
29 | function getAllTransactions() public view returns (TransferStruct[] memory) {
30 | return transactions;
31 | }
32 |
33 | function getTransactionCount() public view returns (uint256) {
34 | return transactionCount;
35 | }
36 | }
--------------------------------------------------------------------------------
/client/src/favicon.svg:
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1 |
16 |
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/client/src/components/Footer.jsx:
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1 | import React from "react";
2 |
3 | import logo from "../../images/logo.png";
4 |
5 | const Footer = () => (
6 | Market
13 |Exchange
14 |Tutorials
15 |Wallets
16 |Come join us and hear for the unexpected miracle
21 |govindchandran150@gmail.com
22 |GOVIND B CHANDRAN
28 |All rights reserved
29 |{subTitle}
14 |From: {shortenAddress(addressFrom)}
24 | 25 | 26 |To: {shortenAddress(addressTo)}
27 | 28 |Amount: {amount} ETH
29 | {message && ( 30 | <> 31 |Message: {message}
33 | 34 | )} 35 |{timestamp}
43 |Explore the crypto world. Buy, Sell & hold crypto here!!
47 | 48 | {!currentAccount && ()} 51 |84 | {currentAccount ? shortenAddress(currentAccount) : (
87 | Ethereum 88 |
89 |