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Integrate Embedded Wallets with the Solana Blockchain in Vue

While using the Web3Auth Vue SDK, you get access to native Solana composables. Pair them with @solana/web3.js for advanced features such as transaction building, program interactions, and account queries.

Chain Details for Solana​

Vue Solana Integration​

You need to install the @solana/web3.js package to interact with the Solana blockchain using the Web3Auth Vue composables.

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Web3Auth provides a set of Vue composables for basic Solana wallet operations. These composables are designed to simplify common Solana interactions in your Vue app.

For advanced Solana features, you should use @solana/web3.js on top of the composables provided.

npm install @solana/web3.js

Solana Composables​

Composable NameDescription
useSignAndSendTransactionSign and send a Solana transaction.
useSignMessageSign a message with the Solana wallet.
useSignTransactionSign a Solana transaction (without sending).
useSolanaWalletAccess Solana wallet state and utilities.

Composable Usage Examples​

Get Solana Wallet​

<template>
  <div>
    <h2>Solana Wallet</h2>
    <p>Connected: {{ connected ? 'Yes' : 'No' }}</p>
    <p v-if="address">Address: {{ address }}</p>
  </div>
</template>

<script setup>
  import { useSolanaWallet } from '@web3auth/modal/vue'

  const { address, connected } = useSolanaWallet()
</script>

Sign Message​

<template>
  <div>
    <h2>Sign Message</h2>
    <button @click="handleSignMessage" :disabled="isPending">
      {{ isPending ? 'Signing...' : 'Sign Message' }}
    </button>
    <p v-if="error">Error: {{ error.message }}</p>
  </div>
</template>

<script setup>
  import { useSignMessage } from '@web3auth/modal/vue'

  const { signMessage, isPending, error } = useSignMessage()

  const handleSignMessage = async () => {
    try {
      const message = new TextEncoder().encode('Hello Solana!')
      const signature = await signMessage(message)
      console.log('Signature:', signature)
    } catch (err) {
      console.error('Error signing message:', err)
    }
  }
</script>

Sign Transaction​

<template>
  <div>
    <h2>Sign Transaction</h2>
    <button @click="handleSignTransaction" :disabled="isPending">
      {{ isPending ? 'Signing...' : 'Sign Transaction' }}
    </button>
    <p v-if="error">Error: {{ error.message }}</p>
  </div>
</template>

<script setup>
  import { useSignTransaction } from '@web3auth/modal/vue'
  import { Transaction, SystemProgram, PublicKey, LAMPORTS_PER_SOL } from '@solana/web3.js'

  const { signTransaction, isPending, error } = useSignTransaction()

  const handleSignTransaction = async () => {
    try {
      // Create a simple transfer transaction
      const transaction = new Transaction().add(
        SystemProgram.transfer({
          fromPubkey: new PublicKey('YOUR_PUBLIC_KEY'),
          toPubkey: new PublicKey('DESTINATION_PUBLIC_KEY'),
          lamports: 0.01 * LAMPORTS_PER_SOL,
        })
      )

      const signedTransaction = await signTransaction(transaction)
      console.log('Signed Transaction:', signedTransaction)
    } catch (err) {
      console.error('Error signing transaction:', err)
    }
  }
</script>

Sign and Send Transaction​

<template>
  <div>
    <h2>Sign and Send Transaction</h2>
    <button @click="handleSignAndSend" :disabled="isPending">
      {{ isPending ? 'Processing...' : 'Sign and Send' }}
    </button>
    <p v-if="error">Error: {{ error.message }}</p>
  </div>
</template>

<script setup>
  import { useSignAndSendTransaction } from '@web3auth/modal/vue'
  import { Transaction, SystemProgram, PublicKey, LAMPORTS_PER_SOL } from '@solana/web3.js'

  const { signAndSendTransaction, isPending, error } = useSignAndSendTransaction()

  const handleSignAndSend = async () => {
    try {
      // Create a simple transfer transaction
      const transaction = new Transaction().add(
        SystemProgram.transfer({
          fromPubkey: new PublicKey('YOUR_PUBLIC_KEY'),
          toPubkey: new PublicKey('DESTINATION_PUBLIC_KEY'),
          lamports: 0.01 * LAMPORTS_PER_SOL,
        })
      )

      const signature = await signAndSendTransaction(transaction)
      console.log('Transaction Signature:', signature)
    } catch (err) {
      console.error('Error signing and sending transaction:', err)
    }
  }
</script>

Further code and advanced usage should be implemented using Solana's web3.js library as needed.

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