npm:@depay/web3-tokens

README

Quickstart

yarn add @depay/web3-tokens

npm install --save @depay/web3-tokens

import { Token } from '@depay/web3-tokens'

let token = new Token({
  blockchain: 'ethereum',
  address: '0xa0bed124a09ac2bd941b10349d8d224fe3c955eb'
});

token.address // '0xa0bEd124a09ac2Bd941b10349d8d224fe3c955eb'
await token.decimals() // 18
await token.symbol() // 'DEPAY'
await token.name() // 'DePay'

Support

This library supports the following blockchains:

Functionalities

initalize (new)

import { Token } from '@depay/web3-tokens'

let token = new Token({
  blockchain: 'ethereum',
  address: '0xa0bed124a09ac2bd941b10349d8d224fe3c955eb'
});

decimals

Retrieves token decimals

await token.decimals() // 18

symbol

Retrieves token symbol

await token.symbol() // DEPAY

name

Retrieves token name

await token.name() // DePay

balance

Provides the balance (BigNumber) of the given account:

await token.balance('0xb0252f13850a4823706607524de0b146820F2240') // BigNumber {_hex: "0x0b896d5e9eeaabf4f1", _isBigNumber: true}

this also works for the native token of the given blockchain:

let token = new Token({ ..., address: '0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE' })
await token.balance('0xb0252f13850a4823706607524de0b146820F2240') // BigNumber {_hex: "0x0b896d5e9eeaabf4f1", _isBigNumber: true}

BigNumber

Provides the BigNumber amount for a given token (based on the tokens decimals) based on a human readable amount:

let token = new Token({
  blockchain: 'ethereum',
  address: '0xa0bed124a09ac2bd941b10349d8d224fe3c955eb'
}) 

await token.BigNumber(1) // BigNumber '1000000000000000000'

await Token.BigNumber({
  amount: 1,
  blockchain: 'ethereum',
  address: '0xa0bed124a09ac2bd941b10349d8d224fe3c955eb'
}) // BigNumber '1000000000000000000'

readable

Provides a human readable amount based on a given BigInt number.

Ending zeros will be eliminated 1.30000 -> 1.3
Decimals are dropped if there are none 1.00000 -> 1

await Token.readable({
  amount: '1231211111210000000',
  blockchain: 'ethereum',
  address: '0xa0bed124a09ac2bd941b10349d8d224fe3c955eb'
}) // "1.23121111121"

let token = new Token({
  blockchain: 'ethereum',
  address: '0xa0bed124a09ac2bd941b10349d8d224fe3c955eb'
})

await token.readable('1231211111210000000') // "1.23121111121"

Token Standards

@depay/web3-tokens exports standard token apis, like ERC20, BEP20 etc.:

import { Token } from '@depay/web3-tokens'

Token.ethereum.ERC20 // [...] ERC20 ABI
Token.bsc.BEP20 // [...] BEP20 ABI

DEFAULT references the broad default token standard on the respective blockchain:

import { Token } from '@depay/web3-tokens'

Token.ethereum.DEFAULT // ERC20
Token.bsc.DEFAULT // BEP20

Token[blockchain].DEFAULT

Development

Get started

yarn install
yarn dev

Release

npm publish

Usage no npm install needed!