A node package in order to deploy ERC20 compliant contracts or introduce new ERC20 tokens in the Ethereum Blockchain. Simplify interaction with tokens , connectivity with web3.js all in a single package. Launch your very own token or transact with other pre-deployed tokens and raise huge funds in maybe your next ICO.

Installation

npm install ercmanager --save

Usage example

Create a new ERC20 token.

const ERCManager = require('ercmanager');

let erc20 = new ERCManager({
        myAddress: "0x9CC14A288BB5cb9Ec0e85b606Cb6585BB7ca6a8E",
        privateKey: '88BAEA1C45C1434E494604F48A39EEDB780BA71086D109B78CC3B7D41AA49773'
});

erc20.create(symbol="SNK", token_name = "Kanchan Coin").then(function (data) {
    console.log(data)
});

• The constructor creates the ERC20 token.
• The essential parameters are address of the creator and their private key.
• The optional parameters are gas required, maximum limit of gas and the web3 provider(default = rinkeby.infura.io).

Connect to a deployed token.

let deployed_token = new ERCManager({
    myAddress: "0x9CC14A288BB5cb9Ec0e85b606Cb6585BB7ca6a8E",
    privateKey: '88BAEA1C45C1434E494604F48A39EEDB780BA71086D109B78CC3B7D41AA49773',
    contractAddress: "0x8298cb3a2dc8fe592504dea860ad7be1882cdcfa",
});

Check balance of an account.

deployed_token.balance().then(function (data) {
    console.log(data);
})

Transfer tokens: transfer(destination_account,amount)

deployed_token.transfer("0x25666A25Ef50B0d87F1f41a47883D7583DCf7980",1).then(function (data) {
    console.log(data);
})

Approve spender to spend your tokens: approve(spender_address, amount)

deployed_token.approve("0x25666A25Ef50B0d87F1f41a47883D7583DCf7980",100).then(function (data) {
    console.log(data);
})

Transfer token from approved account to another: transferFrom(from_address, to_address, amount)

deployed_token.transferFrom("0x25666A25Ef50B0d87F1f41a47883D7583DCf7980", "0x420493959C379D8375aFFA6Bb0De9E5C87f0A4c3",100).then(function (data) {
    console.log(data);
})

Check Allowance: checkAllowance(spender_address, amount)

deployed_token.checkAllowance("0x25666A25Ef50B0d87F1f41a47883D7583DCf7980", 100).then(function (data) {
    console.log(data);
})

Watch transfer of tokens.

deployed_token.watch_transfer(function (data) {
   console.log(data.returnValues._from,data.returnValues._to,data.returnValues._value)
})

Watch Approval of tokens.

deployed_token.watch_approval(function (data) {
   console.log(data.returnValues._from,data.returnValues._to,data.returnValues._value)
})

Development setup

git clone https://github.com/SauravKanchan/ERCManager
cd ERCManager
npm install
npm test

Release History

• 1.0.5
  • Fix Bytecode
• 1.0.4
  • Add transferFrom, Approve, CheckAllowance
• 1.0.3
  • Create new tokens
• 1.0.2
  • Fix Minor bugs
• 1.0.1
  • Add transfer
• 1.0.0
  • Work in progress

Meta

Distributed under the MIT license. See LICENSE for more information.

Contributing

• We are open to addressing bug-fixes.
• Feel free to add issues and submit patches

Contributors

• Saurav Kanchan - SauravKanchan
• Owais Khan - owaiswiz
• Rohit Vadali - enigmavadali
• Sandip Kumar - yadavsandip32