Web3 authentication for Vue3 apps based on WalletConnect v2 and wagmi

A Simple WalletConnect v2 integration package for Vue3 apps

View Demo View Github

Getting started

Installation

Use yarn or npm to install the package @kolirt/vue-web3-auth.

npm install --save @kolirt/vue-web3-auth

yarn add @kolirt/vue-web3-auth

Setup

Configuration

Add dependencies to your main.js:

import {createApp} from 'vue'
import {Chains, createWeb3Auth} from '@kolirt/vue-web3-auth'

const app = createApp({...})

app.use(createWeb3Auth({
    projectId: '', // generate here https://cloud.walletconnect.com/ and turn on 'Supports Sign v2'
    chains: [
        Chains.bsc,
        Chains.mainnet,
        Chains.polygon
    ]
}))

app.mount('#app')

Custom chain

import {Chain} from '@kolirt/vue-web3-auth'

const bsc: Chain = {
    id: 56,
    name: 'BNB Smart Chain',
    network: 'bsc',
    nativeCurrency: {
        decimals: 18,
        name: 'BNB',
        symbol: 'BNB',
    },
    rpcUrls: {
        default: {
            http: ['https://rpc.ankr.com/bsc'],
            webSocket: ['wss://bsc-ws-node.nariox.org:443']
        },
        public: {
            http: ['https://rpc.ankr.com/bsc'],
            webSocket: ['wss://bsc-ws-node.nariox.org:443']
        },
    },
    blockExplorers: {
        etherscan: {
            name: 'BscScan',
            url: 'https://bscscan.com',
        },
        default: {
            name: 'BscScan',
            url: 'https://bscscan.com',
        },
    },
    contracts: {
        multicall3: {
            address: '0xca11bde05977b3631167028862be2a173976ca11',
            blockCreated: 15921452,
        },
    },
}

Custom rpc provider

By default, the package uses the walletconnect rpc provider. If you want to use a custom rpc from the chain, you can set the enableCustomProvider option to true.

app.use(createWeb3Auth({
    enableCustomProvider: true
})

Usage

Basic usage

Connect wallet button

<script setup lang="ts">
import {account, disconnect, connect, accountDetails} from '@kolirt/vue-web3-auth'
</script>

<template>
  <div v-if="account.connected">
    <button @click="accountDetails()">
      {{ account.address }}
    </button>
    <button @click="disconnect()">
      Disconnect
    </button>
  </div>
  <button v-else @click="connect()">
    Connect wallet
  </button>
</template>

FetchGasPrice

import {fetchGasPrice} from '@kolirt/vue-web3-auth'

let data = await fetchGasPrice()

/**
 * Result in data
 *
 * {
 *  formatted: {
 *   gasPrice: '3'
 *  },
 *  gasPrice: 3000000000n
 * }
 */

FetchBlockNumber

import {fetchBlockNumber} from '@kolirt/vue-web3-auth'

let data = await fetchBlockNumber()

/**
 * Result in data
 *
 * 29288229n
 */

FetchTransaction

import {fetchTransaction} from '@kolirt/vue-web3-auth'

let transaction = await fetchTransaction({
    hash: '0x7ed8dc64f54ae43f4d53173e95aa929c52de44ec5cea8c28246989914ed7f4fb'
})

fetchTransactionReceipt

import {fetchTransactionReceipt} from '@kolirt/vue-web3-auth'

let transactionReceipt = await fetchTransactionReceipt({
    hash: '0x7ed8dc64f54ae43f4d53173e95aa929c52de44ec5cea8c28246989914ed7f4fb'
})

SendTransaction

import {sendTransaction} from '@kolirt/vue-web3-auth'

let txn = await sendTransaction({
    to: '0x2D4C407BBe49438ED859fe965b140dcF1aaB71a9',
    value: 1n
})

SignMessage

import {signMessage} from '@kolirt/vue-web3-auth'

const signature = await signMessage('test message')

Multicall

import {multicallABI, multicall, chain} from '@kolirt/vue-web3-auth'

let data = await multicall({
    calls: [
        {
            abi: multicallABI,
            contractAddress: chain.value.contracts.multicall3.address,
            calls: [
                ['getEthBalance', ['0x2D4C407BBe49438ED859fe965b140dcF1aaB71a9']],
                ['getEthBalance', ['0x295e26495CEF6F69dFA69911d9D8e4F3bBadB89B']],
                ['getEthBalance', ['0x2465176C461AfB316ebc773C61fAEe85A6515DAA']]
            ]
        }
    ]
})

/**
 * Result in data
 *
 * [
 *  {result: 1908669631824871303n, status: "success"},
 *  {result: 133515691552422277n, status: "success"},
 *  {result: 2080909582708869960n, status: "success"}
 * ]
 */

FetchBalance

import {fetchBalance} from '@kolirt/vue-web3-auth'

let bnbBalance = await fetchBalance({
    address: '0x2D4C407BBe49438ED859fe965b140dcF1aaB71a9'
})

/**
 * Result in bnbBalance
 *
 * {
 *  decimals: 18,
 *  formatted: '1.908669631824871303',
 *  symbol: 'BNB',
 *  value: 1908669631824871303n
 * }
 */

let tokenBalance = await fetchBalance({
    address: '0x2D4C407BBe49438ED859fe965b140dcF1aaB71a9',
    token: '0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c'
})

/**
 * Result in tokenBalance
 *
 * {
 *  decimals: 18,
 *  formatted: '0',
 *  symbol: 'WBNB',
 *  value: 0n
 * }
 */

FetchToken

import {fetchToken} from '@kolirt/vue-web3-auth'

let data = await fetchToken({
    address: '0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c'
})

/**
 * Result in data
 *
 * {
 *  address: '0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c',
 *  decimals: 18,
 *  name: 'Wrapped BNB',
 *  symbol: 'WBNB',
 *  totalSupply: {
 *   formatted: '2538454.736169014001284694',
 *   value: 2538454736169014001284694n
 *  }
 * }
 */

ReadContract

import {erc20ABI, readContract} from '@kolirt/vue-web3-auth'

let data = await readContract({
    address: '0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c', // wbnb on bsc
    abi: erc20ABI,
    functionName: 'balanceOf',
    args: ['0x36696169c63e42cd08ce11f5deebbcebae652050']
})

/**
 * Result in data
 *
 * 107109316688516684525777n
 */

WriteContract

import {erc20ABI, writeContract} from '@kolirt/vue-web3-auth'

await writeContract({
    abi: erc20ABI,
    address: '0x55d398326f99059fF775485246999027B3197955',
    functionName: 'approve',
    args: ['0x685B1ded8013785d6623CC18D214320b6Bb64759', 100]
})
    .then(async (data) => {
        console.log('hash', data.hash)

        await data.wait()

        console.log('transaction successfully')
    })

EstimateWriteContractGas

import {erc20ABI, estimateWriteContractGas} from '@kolirt/vue-web3-auth'

const gas = await estimateWriteContractGas({
    abi: erc20ABI,
    address: '0x55d398326f99059fF775485246999027B3197955',
    functionName: 'approve',
    args: ['0x685B1ded8013785d6623CC18D214320b6Bb64759', 100]
}).catch(e => {
})

ParseEvents

import {erc20ABI, fetchTransactionReceipt, parseEvents} from '@kolirt/vue-web3-auth'

const transactionReceipt = await fetchTransactionReceipt({
    hash: '0x2a328737e94bb243b1ff64792ae68cd6c179797dc1de1e092c96137f0d3404c3'
})

const events = parseEvents({abi: erc20ABI}, transactionReceipt)
/**
 * Result in events
 * 
 * [
 *  {
 *   args: {
 *    owner: '0xaA916B4a4cDbEFC045fa24542673F500a11F5413',
 *    spender: '0x023963f7e755bE4F743047183d1F49C31E84AEa4',
 *    value: 1000000000000000000n
 *   },
 *   eventName: 'Approval'
 *  }
 * ]
 */

WatchContractEvent

import {erc20ABI, watchContractEvent} from '@kolirt/vue-web3-auth'

const unwatch = watchContractEvent({
    address: '0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c',
    abi: erc20ABI,
    eventName: 'Transfer'
}, (log) => {
    console.log(log)
})

Composable

UseFetchBalance

import {useFetchBalance} from '@kolirt/vue-web3-auth'

// use `fetch` for manual init when `disableAutoFetch` is `true`
const {
    loaded, fetching, data, 
    fetch, reload, disableAutoReload
} = useFetchBalance({
    address: '0x2D4C407BBe49438ED859fe965b140dcF1aaB71a9'
}, {
    disableAutoFetch: false,
    autoReloadTime: 30000,
    disableAutoReload: false
})

Demo

Demo here.

Example

Example here.

FAQ

Check closed issues to get answers for most asked questions.

License

MIT.

Other projects

Check out my other projects: