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Web3ModalVue

A single Web3 / Ethereum provider solution for all Wallets

Introduction

Web3Modal is an easy-to-use library to help developers add support for multiple providers in their apps with a simple customizable configuration.

By default Web3Modal Library supports injected providers like (Metamask, Dapper, Gnosis Safe, Frame, Web3 Browsers, etc) and WalletConnect, You can also easily configure the library to support Portis, Fortmatic, Squarelink, Torus, Authereum, D'CENT Wallet and Arkane.

React

web3modal

Usage

  1. Install Web3Modal NPM package
npm install --save web3modal-vue

# OR

yarn add web3modal-vue
  1. Install Provider packages
/* See Provider Options Section */
  1. Then you can add Web3Modal to your Dapp as follows
<template>
  <div id="app">
    <web3-modal-vue
        ref="web3modal"
        :theme="theme"
        :provider-options="providerOptions"
        cache-provider
    />
  </div>
</template>
<script>
import Web3ModalVue from "web3modal-vue";
import WalletConnectProvider from "@walletconnect/web3-provider";
import {web3Modal} from "./config/mixins";
import Header from "@/components/Header";

export default {
  components: {
    Header,
    Web3ModalVue
  },
  mixins: [web3Modal],
  data() {
    return {
      theme: 'light',
      providerOptions: {
        walletconnect: {
          package: WalletConnectProvider,
          options: {
            infuraId: "-"
          }
        }
      },
      number: 0,
      balance: 0,
    }
  },
  created() {
    if (window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches) {
      this.theme = 'dark'
    }
  },
  mounted() {
    this.$nextTick(async () => {
      const web3modal = this.$refs.web3modal;
      this.$store.commit('setWeb3Modal', web3modal)
      if (web3modal.cachedProvider) {
        await this.$store.dispatch('connect')
        this.subscribeMewBlockHeaders()
      }

    })
  },
  methods: {
    connect() {
      this.$store.dispatch('connect')
    },
  }
}
</script>
import {getLibrary} from "@/utils/web3";
import {ethers} from "ethers";
import {parseInt} from 'lodash'

const web3ModalStore = {
    state: {
        web3Modal: null,

        library: getLibrary(),
        active: false,
        account: null,
        chainId: 0,
    },
    mutations: {
        setWeb3Modal(state, web3Modal) {
            state.web3Modal = web3Modal
        },
        setLibrary(state, library) {
            state.library = library
        },
        setActive(state, active) {
            state.active = active
        },
        setAccount(state, account) {
            state.account = account
        },
        setChainId(state, chainId) {
            state.chainId = chainId
        }
    },
    actions: {
        async connect({state, commit, dispatch}) {
            const provider = await state.web3Modal.connect();

            const library = new ethers.providers.Web3Provider(provider)

            library.pollingInterval = 12000
            commit('setLibrary', library)

            const accounts = await library.listAccounts()
            if (accounts.length > 0) {
                commit('setAccount', accounts[0])
            }
            const network = await library.getNetwork()
            commit('setChainId', network.chainId)
            commit('setActive', true)

            provider.on("connect", async (info) => {
                let chainId = parseInt(info.chainId)
                commit('setChainId', chainId)
                console.log("connect", info)
            });

            provider.on("accountsChanged", async (accounts) => {
                if (accounts.length > 0) {
                    commit('setAccount', accounts[0])
                } else {
                    await dispatch('resetApp')
                }
                console.log("accountsChanged")
            });
            provider.on("chainChanged", async (chainId) => {
                chainId = parseInt(chainId)
                commit('setChainId', chainId)
                console.log("chainChanged", chainId)
            });

        },
        async resetApp({state, commit}) {
            try {
                await state.web3Modal.clearCachedProvider();
            } catch (error) {
                console.error(error)
            }
            commit('setAccount', null)
            commit('setActive', false)
            commit('setLibrary', getLibrary())
        },
    }
}
export default web3ModalStore;

Provider Options

These are all the providers available with Web3Modal and how to configure their provider options:

Who using it

Submit my Dapp

Example

https://github.com/SmallRuralDog/web3modal-vue/tree/master/example

Demo

https://smallruraldog.github.io/web3modal-vue

License

MIT