Connect Wallet
The ability for a user to connect their wallet is a core function for any Dapp. It allows users to perform tasks such as: writing to contracts, signing messages, or sending transactions.
Wagmi contains everything you need to get started with building a Connect Wallet module. To get started, you can either use a third-party library or build your own.
Third-party Libraries
You can use a pre-built Connect Wallet module from a third-party library such as:
The above libraries are all built on top of Wagmi, handle all the edge cases around wallet connection, and provide a seamless Connect Wallet UX that you can use in your Dapp.
Build Your Own
Wagmi provides you with the Composables to get started building your own Connect Wallet module.
It takes less than five minutes to get up and running with Browser Wallets, WalletConnect, and Coinbase Wallet.
1. Configure Wagmi
Before we get started with building the functionality of the Connect Wallet module, we will need to set up the Wagmi configuration.
Let's create a config.ts file and export a config object.
import { http, createConfig } from '@wagmi/vue'
import { base, mainnet, optimism } from '@wagmi/vue/chains'
import { injected, metaMask, safe, walletConnect } from '@wagmi/vue/connectors'
const projectId = '<WALLETCONNECT_PROJECT_ID>'
export const config = createConfig({
chains: [mainnet, base],
connectors: [
injected(),
walletConnect({ projectId }),
metaMask(),
safe(),
],
transports: {
[mainnet.id]: http(),
[base.id]: http(),
},
})In the above configuration, we want to set up connectors for Injected (browser), WalletConnect (browser + mobile), MetaMask, and Safe wallets. This configuration uses the Mainnet and Base chains, but you can use whatever you want.
WARNING
Make sure to replace the projectId with your own WalletConnect Project ID, if you wish to use WalletConnect!
2. Inject the WagmiPlugin onto your App
Next, we will need to inject our App with plugins so that our application is aware of Wagmi & Vue Query's reactive state and in-memory caching.
// 1. Import modules.
import { VueQueryPlugin } from '@tanstack/vue-query';
import { WagmiPlugin } from '@wagmi/vue';
import { createApp } from 'vue';
import App from './App.vue';
import { config } from './wagmi';
createApp(App)
// 2. Inject the Wagmi plugin.
.use(WagmiPlugin, { config })
// 3. Inject the Vue Query plugin.
.use(VueQueryPlugin, {})
.mount('#app');<script setup lang="ts">
</script>
<template>
</template>import { http, createConfig } from '@wagmi/vue'
import { base, mainnet, optimism } from '@wagmi/vue/chains'
import { injected, metaMask, safe, walletConnect } from '@wagmi/vue/connectors'
const projectId = '<WALLETCONNECT_PROJECT_ID>'
export const config = createConfig({
chains: [mainnet, base],
connectors: [
injected(),
walletConnect({ projectId }),
metaMask(),
safe(),
],
transports: {
[mainnet.id]: http(),
[base.id]: http(),
},
})3. Display Wallet Options
After that, we will create a Connect component that will display our connectors. This will allow users to select a wallet and connect.
Below, we are rendering a list of connectors retrieved from useConnect. When the user clicks on a connector, the connect function will connect the users' wallet.
<script setup lang="ts">
import { useConnect, useChainId } from '@wagmi/vue';
const chainId = useChainId();
const { connectors, connect } = useConnect();
</script>
<template>
<button
v-for="connector in connectors"
@click="connect({ connector, chainId })"
>
{{ connector.name }}
</button>
</template><script setup lang="ts">
</script>
<template>
</template>// 1. Import modules.
import { VueQueryPlugin } from '@tanstack/vue-query';
import { WagmiPlugin } from '@wagmi/vue';
import { createApp } from 'vue';
import App from './App.vue';
import { config } from './wagmi';
createApp(App)
// 2. Inject the Wagmi plugin.
.use(WagmiPlugin, { config })
// 3. Inject the Vue Query plugin.
.use(VueQueryPlugin, {})
.mount('#app');import { http, createConfig } from '@wagmi/vue'
import { base, mainnet, optimism } from '@wagmi/vue/chains'
import { injected, metaMask, safe, walletConnect } from '@wagmi/vue/connectors'
const projectId = '<WALLETCONNECT_PROJECT_ID>'
export const config = createConfig({
chains: [mainnet, base],
connectors: [
injected(),
walletConnect({ projectId }),
metaMask(),
safe(),
],
transports: {
[mainnet.id]: http(),
[base.id]: http(),
},
})4. Display Connected Account
Lastly, if an account is connected, we want to show some basic information, like the connected address and ENS name and avatar.
Below, we are using hooks like useAccount, useEnsAvatar and useEnsName to extract this information.
We are also utilizing useDisconnect to show a "Disconnect" button so a user can disconnect their wallet.
<script setup lang="ts">
import { useAccount, useDisconnect } from '@wagmi/vue';
const { address, connector } = useAccount();
const { disconnect } = useDisconnect();
</script>
<template>
<div>Address: {{ address }}</div>
<div>Connected to {{ connector?.name }} Connector.</div>
<button @click="disconnect()">Disconnect</button>
</template><script setup lang="ts">
import { useConnect, useChainId } from '@wagmi/vue';
const chainId = useChainId();
const { connectors, connect } = useConnect();
</script>
<template>
<button
v-for="connector in connectors"
@click="connect({ connector, chainId })"
>
{{ connector.name }}
</button>
</template><script setup lang="ts">
</script>
<template>
</template>// 1. Import modules.
import { VueQueryPlugin } from '@tanstack/vue-query';
import { WagmiPlugin } from '@wagmi/vue';
import { createApp } from 'vue';
import App from './App.vue';
import { config } from './wagmi';
createApp(App)
// 2. Inject the Wagmi plugin.
.use(WagmiPlugin, { config })
// 3. Inject the Vue Query plugin.
.use(VueQueryPlugin, {})
.mount('#app');import { http, createConfig } from '@wagmi/vue'
import { base, mainnet, optimism } from '@wagmi/vue/chains'
import { injected, metaMask, safe, walletConnect } from '@wagmi/vue/connectors'
const projectId = '<WALLETCONNECT_PROJECT_ID>'
export const config = createConfig({
chains: [mainnet, base],
connectors: [
injected(),
walletConnect({ projectId }),
metaMask(),
safe(),
],
transports: {
[mainnet.id]: http(),
[base.id]: http(),
},
})5. Wire it up!
Finally, we can wire up our Connect and Account components to our application's entrypoint.
<script setup lang="ts">
import { useAccount } from '@wagmi/vue';
import Account from './Account.vue';
import Connect from './Connect.vue';
const { isConnected } = useAccount();
</script>
<template>
<Account v-if="isConnected" />
<Connect v-else />
</template><script setup lang="ts">
import { useAccount, useDisconnect } from '@wagmi/vue';
const { address, connector } = useAccount();
const { disconnect } = useDisconnect();
</script>
<template>
<div>Address: {{ address }}</div>
<div>Connected to {{ connector?.name }} Connector.</div>
<button @click="disconnect()">Disconnect</button>
</template><script setup lang="ts">
import { useConnect, useChainId } from '@wagmi/vue';
const chainId = useChainId();
const { connectors, connect } = useConnect();
</script>
<template>
<button
v-for="connector in connectors"
@click="connect({ connector, chainId })"
>
{{ connector.name }}
</button>
</template>// 1. Import modules.
import { VueQueryPlugin } from '@tanstack/vue-query';
import { WagmiPlugin } from '@wagmi/vue';
import { createApp } from 'vue';
import App from './App.vue';
import { config } from './wagmi';
createApp(App)
// 2. Inject the Wagmi plugin.
.use(WagmiPlugin, { config })
// 3. Inject the Vue Query plugin.
.use(VueQueryPlugin, {})
.mount('#app');import { http, createConfig } from '@wagmi/vue'
import { base, mainnet, optimism } from '@wagmi/vue/chains'
import { injected, metaMask, safe, walletConnect } from '@wagmi/vue/connectors'
const projectId = '<WALLETCONNECT_PROJECT_ID>'
export const config = createConfig({
chains: [mainnet, base],
connectors: [
injected(),
walletConnect({ projectId }),
metaMask(),
safe(),
],
transports: {
[mainnet.id]: http(),
[base.id]: http(),
},
})Playground
Want to see the above steps all wired up together in an end-to-end example? Check out the below StackBlitz playground.