IGT-20 Tokens

IGT-20 Tokens on Ignite Chain

This token standard is equivalent of ERC20 built on top of the Ignite Chain network. Users would have to need IGT in order to cover the transaction fees for sending IGT-20 tokens. These tokens can be easily integrated into other dapps and get listed on cryptocurrency exchanges.

There is a separate smart contract for creating and issuing IGT-20 tokens for interested parties or developers where all they have to do is enter name, ticker, details and quantity of tokens to mint it within 10 minutes.

IGT-20 smart contract ABI: IGT20.json

IGT20 Contract Interface

function totalSupply() public view returns (uint);
function balanceOf(address tokenOwner) public view returns (uint balance);
function allowance(address tokenOwner, address spender) public view returns (uint remaining);
function transfer(address to, uint tokens) public returns (bool success);
function approve(address spender, uint tokens) public returns (bool success);
function transferFrom(address from, address to, uint tokens) public returns (bool success);

event Transfer(address indexed from, address indexed to, uint tokens);
event Approval(address indexed tokenOwner, address indexed spender, uint tokens);

Ignite Chain provides RPC APIs to developers for using Web3 library to call functions directly in a smart contract. Follow the steps below to interact with the smart contract by using Web3 Library and NodeJS.

Init Web3 Provider

Firstly, init Web3 provider by connecting Ignite Chain Fullnode RPC endpoint.

Check Ignite Chain Network page to find details about Testnet or Mainnet network information.

const Web3 = require('web3')
const web3 = new Web3('https://www.ignite-rpc.com')
const chainId = 1991

Unlock Wallet

Refer Create new wallet page for creating/unlocking a new wallet.

Example:

// Unlock wallet by private key
const account = web3.eth.accounts.privateKeyToAccount(pkey)
const holder = account.address
web3.eth.accounts.wallet.add(account)
web.eth.defaultAccount = holder

Init Web3 IGT20 Contract

const igt20Abi = require('./IGT20.json')
const address = '[enter_your_contract_address]'
const igt20 = new web3.eth.Contract(igt20Abi,
        address, {gasPrice: 250000000, gas: 2000000 })

Check Balance

Use call function balanceOf() from IGT20 contract to check token balance for any address.

Example:

igt20.methods.balanceOf(holder).call()
.then((result) => {
    console.log(result)
}).catch(e => console.log(e))

Estimate TX Fee (gas)

To send tokens, IGT is needed to cover the transaction fees.

Method:

myContract.methods.myMethod([param1[, param2[, ...]]]).estimateGas(options[, callback])

Example:

igt20.methods.transfer(to, '500000000000000000000').estimateGas({
    from: holder
})
.then((result) => {
    console.log(result)
}).catch(e => console.log(e))

Token Transfer

To transfer IGT20 token, transfer function is used.

Example:

// send 500000000000000000000 tokens to this address (e.g decimals 18)
const to = "0xdFfD678E4e06d0d56C74EBa4fef50C710c4b5291"
igt20.methods.transfer(to, '500000000000000000000').send({
    from: holder,
    gas: 2000000,
    gasPrice: 250000000,
    chainId: chainId
})
.then((result) => {
    console.log(result)
}).catch(e => console.log(e))