About

Metamask extension functions:

• networkSwitcher
• addTokenToMetamask

Common functions:

• removeEFromNumber
• setStyles
• createNewWallet

Components:

• NumericInput

Hooks:

• useWeb3Contract

https://techbandorg.github.io/hooks/

Installation

npm i tech-mask-utils or yarn add tech-mask-utils

Usage

To export the newly created function, you must write in index.ts: export {yourFunc} from '../../..'

To import some function or component: import {} from 'tech-mask-utils'

Metamask functions:

• addTokenToMetamask(web3: any, tokenAddress: string, tokenSymbol?: string, tokenDecimals?: number) tokenSymbol and tokenDecimals is optional parameters

addTokenToMetamask(web3, '0xae13d989dac2f0debff460ac112a837c89baa7cd', 'BNB', 18)

• networkSwitcher(web3, chainId: number)

networkSwitcher(web3, 56)

Common functions:

• removeEFromNumber(number: number)

removeEFromNumber(0.2323e+18) => '232300000000000000'

• createNewWallet() creates new web3 account and returns publicAddress and privateKey

const {publicAddress, privateKey} = createNewWallet()

• setStyles(styles: object) uses for set styles to component. In example below this function set styles for input max button

const styles = {
  inputMaxButton: {
    background: '#fff',
    'border-radius': '20px'
  },
  'inputMaxButton:hover': {
    background: '#000'
  }
}

setStyles(styles)

Components:

• <NumericInput/>

If onMax is passed to props, the component will render the max button

Prop types

value: string | number
onUserInput: (input: string) => void
placeholder?: string
onMax?: () => void
inputPadding?: string
inputWidth?: string
inputBackground?: string
inputBorderRadius?: string

Usage

import {NumericInput} from 'tech-mask-utils'

const App = () => {
  return (
    <>
     <NumericInput 
       value={value}
       onUserInput={setValue}
       onMax={onMax}
       placeholder={'enter your value'}
       // styling
       inputPadding={'10px'}
       inputWidth={'10px'}
       inputBackground={'10px'}
       inputBorderRadius={'10px'}
     />
    </>
  )
}

Hooks:

• useWeb3Contract(contractInfoObject)

Returns chainId, web3 object with current provider and getContract() function

getContract(contractName: string) takes as its argument the name of the contract in uppercase to be returned

The argument object should be as in the example:

export const contractInfoObject = {
  1: {
    USDT: {
      address: '0xdAC17F958D2ee523a2206206994597C13D831ec7',
      name: 'USDT',
      abi: usdtAbi
    }
  },
  56: {
    BUSD: {
      address: '0xe9e7CEA3DedcA5984780Bafc599bD69ADd087D56',
      name: 'BUSD',
      abi: busdAbi
    }
  }
}

Usage

import {useWeb3Contract} from 'tech-mask-utils'

const App = () => {
const {chainId, web3, getContract} = useWeb3Contract(contractInfoObject)
const contract = getContract('USDT')

  return (
    <></>
  )
}