ERC777AT

ERC777AT is Ethereum ERC777 tokens built with sole purpose of learning the technology.

Description

The project basically lets you be a tokens holder of 10000 ERC777AT with the address you used to deploy the ERC777 contract after that, you can obtain the contract address and import the tokens into your favorite wallet:

Features

• ERC777AT operators

  • Bulksend operator, it allows the holder of the tokens to send an amount of tokens to different addresses using one transaction.

  • Staticsale operator let every ERC777AT holder let price for their token to lets other addresses buy them for this price.

  • Etherless transfer operator Let token holder sign transaction data to allow another user to make the transaction on his behalf using the same holder's signature.

• ERC777AT hooks

  • AT sender hook let the owner specify steps and requirements before the tokens leave the account.

  • AT receiver hook let the tokens receiver specify steps and requirements before the tokens enter the account.

Visuals

visuals are the front-end representation for the ERC777AT operators using web3. you can navigate through the front-end in the client directory. Note: the current deployment is the goerli testnet so make sure you are connected to it to use the client applications.

• bulk-sender client in https://at-bulksend.vercel.app/ However, the extract CSV functionality is not implemented yet.

• static-sale client in https://at-staticsale.vercel.app/ let other addresses buy AT from my personal account 0x006510FA9a9b5b0566209347200d3300081342f3 for the amount I set.

• price-set client in https://at-priceset.vercel.app/ let the holder of the tokens set a price for their tokens to sell them using their own front-end or using static-sale which I will show how in the usage section

Installation

before you clone the repository, make sure you have truffle in your machine then run

npm install

Usage

First, you need to compile the contracts if you made any changes using

truffle compile

then you have to deploy the contracts to a blockchain, but before you have 2 options as you can see in the truffle-config.

the first option is:

import foobar
const HDWalletProvider = require('@truffle/hdwallet-provider');

require('dotenv').config();
module.exports = {
    networks: {
        rinkeby: {
            provider: () => new HDWalletProvider(process.env.MNENOMIC, "wss://rinkeby.infura.io/ws/v3/" + process.env.INFURA_API_KEY),
            network_id: 4,
            networkCheckTimeout: 1000000
        }
    },

    compilers: {
        solc: {
            version: "0.8.13"      // Fetch exact version from solc-bin (default: truffle's version)
            // docker: true,        // Use "0.5.1" you've installed locally with docker (default: false)
            // settings: {          // See the solidity docs for advice about optimization and evmVersio
            //  evmVersion: "byzantium"
            // }
        }
    }
};

in this case you're deploying to rinkeby testnet so you need .env file to hold your data.

The second case is the commented section

//
// module.exports = {
//     networks: {
//         development: {
//             host: "127.0.0.1",
//             port: 7545,
//             network_id: "*" // Match any network id
//         }
//     },
//     compilers: {
//         solc: {
//             version: "0.8.13"      // Fetch exact version from solc-bin (default: truffle's version)
//             // docker: true,        // Use "0.5.1" you've installed locally with docker (default: false)
//             // settings: {          // See the solidity docs for advice about optimization and evmVersio
//             //  evmVersion: "byzantium"
//             // }
//         }
//     }
// }

This allows you to use the local blockchain of ganache instead so just uncomment this section if this is what you prefer.

After you decide where to deploy just run:

truffle migrate --network live

To use the client-side after deployment, don't forget to change the config.js file in every application with the new ABI and contract address.

To make the static-sale use your address instead, you need manually change my address from the application in App.js and put yours.

Testing

The tests I wrote are in the test directory. Note: I was using the ganache during testing so I had to configure the ERC1820 registry for the local blockchain using the help of openzeppelin.

To make your own tests just make the TestFile.test.js in the test directory and run:

truffle test ./test/TestFile.test.js

Or to run all the test files:

truffle test

Acknowledgment

Most of the blockchain work is based on wealdtech explanation.