# Vue composables for Ethereum (via Wagmi)

> @web3auth/modal Ethereum Vue Composables | Embedded Wallets

Web3Auth supports composable-based Ethereum wallet operations in Vue via [Wagmi](https://wagmi.sh/). Once you have set up Wagmi using the Web3Auth Modal SDK (see the [setup guide](#wagmi-integration)), you can use all Wagmi composables directly in your application—no additional wrappers or configuration are needed beyond the initial setup.

## Wagmi integration

You need to install the `wagmi` & `@tanstack/vue-query` packages and use the **Web3Auth
implementation of `WagmiProvider`** for configuration.

:::info

The Web3Auth implementation of `WagmiProvider` is a custom implementation that is used to integrate
with the Web3Auth Modal SDK. It is a wrapper around the `WagmiProvider` that makes it compatible.

With this implementation, you can use the Wagmi composables, however **no external connectors are
supported**. Web3Auth provides a whole suite of connectors which you can use directly for a better
experience with external wallets.

:::

```bash
npm install wagmi @tanstack/vue-query
```

Update your `main.ts` to use the Vue Query plugin **only if you are using Wagmi**:

```ts title="main.ts"
// focus-next-line

// focus-next-line
createApp(App).use(VueQueryPlugin).mount('#app')
```

Then, in your `App.vue`, wrap your app with both providers:

```html title="App.vue"
<script setup lang="ts">

  // focus-next-line

</script>

<template>
  
    <Web3AuthProvider :config="web3AuthContextConfig">
      <!-- focus-start -->
      <WagmiProvider>
        <Home />
      </WagmiProvider>
      <!-- focus-end -->
    </Web3AuthProvider>
  
</template>
```

:::info

Wagmi provides a comprehensive set of composables for Ethereum and EVM-compatible chains in Vue.
Web3Auth integrates seamlessly with Wagmi, so you can use composables like `useAccount`,
`useBalance`, `useSendTransaction`, and more, out of the box.

:::

Below are some examples of using Wagmi composables in your dapp after Web3Auth and Wagmi are set up.
You can note these functions work directly with Wagmi. Once you have set up Wagmi with Web3Auth, you
can use any Wagmi composable as you would in a standard Wagmi application.

### Get account balance

```html
<script setup lang="ts">

  const { address } = useAccount()
  const { data, isLoading, error } = useBalance(computed(() => ({ address: address.value })))
</script>

<template>
  
    Balance
    
      
        {{ formatUnits(data.value, data.decimals) }} {{ data.symbol }}
      
      Loading...
      Error: {{ error.message }}
    
  
</template>
```

### Send transaction

```html
<script setup lang="ts">

  const address = ref('')
  const value = ref('')
  const { data: hash, error, isPending, sendTransaction } = useSendTransaction()

  function submit() {
    sendTransaction({
      to: address.value,
      value: parseEther(value.value),
    })
  }

  const { isLoading: isConfirming, isSuccess: isConfirmed } = useWaitForTransactionReceipt({
    hash,
  })
</script>

<template>
  
    Send Transaction
    <form @submit.prevent="submit">
      <input v-model="address.value" name="address" placeholder="Address" required />
      <input
        v-model="value.value"
        name="value"
        placeholder="Amount (ETH)"
        type="number"
        step="0.000000001"
        required />
      <button :disabled="isPending" type="submit">
        {{ isPending ? "Confirming..." : "Send" }}
      </button>
    </form>
    Transaction Hash: {{ hash }}
    Waiting for confirmation...
    Transaction confirmed.
    Error: {{ error.shortMessage || error.message }}
  
</template>
```

### Switch chain

```html
<script setup lang="ts">

  const chainId = useChainId()
  const { chains, switchChain, error } = useSwitchChain()
</script>

<template>
  
    Switch Chain
    Connected to {{ chainId }}
    
      <button
        v-for="chain in chains"
        :key="chain.id"
        :disabled="chainId === chain.id"
        @click="switchChain({ chainId: chain.id })"
        type="button"
        class="card">
        {{ chain.name }}
      </button>
    
    {{ error.message }}
  
</template>
```