Creating a Solana wallet

To create a Solana embedded wallet for your user, call the createSolanaWallet method on your PrivyUser instance.

abstract class PrivyUser {
  /// Creates a Solana embedded wallet for the user.
  Future<Result<EmbeddedSolanaWallet>> createSolanaWallet();
}

If a wallet is successfully created for the user, an EmbeddedSolanaWallet object is returned as an encapsulated value of Result.success.

This method will Result.failure if:

• The user is not authenticated
• A user already has a Solana wallet
• If the network call to create the wallet fails

The Solana wallet

An EmbeddedSolanaWallet is defined as follows:

abstract class EmbeddedSolonaWallet {
  /// The wallet's address.
  final String address;

  /// The chain ID.
  final String? chainId;

  /// Recovery method type.
  final String? recoveryMethod;

  /// HD wallet index.
  final int hdWalletIndex;

  /// Chain type - in this case ChainType.solana
  final ChainType chainType;

 // A hook to an EmbeddedSolanaWalletProvider instance for this wallet
  final EmbeddedSolanaWalletProvider provider;
}

Using the wallet

Privy supports requesting signatures on messages and transactions from a user's Solana embedded wallet using the signMessage RPC. To request a signature, get the Solana embedded wallet provider and call the signMessage method on it with a base-64 encoded message to sign. If the signature is computed successfully, signMessage will return it as a base64-encoded string.

abstract class EmbeddedSolanaWalletProvider {
  /**
   * Request a signature on a Base64 encoded message or transaction
   *
   * @param message Base64 encoded message or transaction
   * @return The Base64 encoded computed signature
   */
  Future<Result<String>> signMessage(String message);
}

Example usage:

// Get the current user
final user = privy.user;

// Check if the user is authenticated
if (user != null) {
  // Retrieve the user's Solana wallet
  final solanaWallet = user.embeddedSolanaWallets.first;

  if (solanaWallet != null) {
    // Sign a message
    final result = solanaWallet.provider.signMessage("SGVsbG8hIEkgYW0gdGhlIGJhc2U2NCBlbmNvZGVkIG1l      c3NhZ2UgdG8gYmUgc2lnbmVkLg==")
  }
}

Retrieving a user's Solana wallets

To retrieve all of a user's Solana wallets:

1. Ensure the user is authenticated
2. Grab the user's Solana wallets.

// Get the current user
final user = privy.user;

// Check if the user is authenticated
if (user != null) {

  // Retrieve the user's Solana wallets
  final solanaWallet = user.embeddedSolanaWallets;
}