Function Signature 
public func doesWalletExist(
    _ forChainId: String? = nil
) async throws -> Bool
Parameters
  • forChainId: Optional chain identifier (e.g., “eip155:1” for Ethereum mainnet, “solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp” for Solana mainnet). If nil, checks for wallets across all chains.
Returns A boolean value indicating whether a wallet exists:
  • When chainId is provided:
    • Returns true if a wallet exists for the specified chain and has at least one completed signing share
    • Returns false if no wallet exists or if no signing shares are completed
  • When chainId is nil:
    • Returns true if any wallet exists and has at least one completed signing share
    • Returns false if no wallets exist or if no signing shares are completed
Throws
  • PortalClassError.clientNotAvailable if the client is not initialized
Example Usage 
// Check for any existing wallet
do {
    let exists = try await portal.doesWalletExist()
    if exists {
        print("Wallet exists with completed signing shares")
    } else {
        print("No wallet found or no completed signing shares")
    }
} catch {
    print("Error checking wallet existence: \(error)")
}

// Check for specific chain wallets
do {
    // Check Ethereum wallet
    let ethExists = try await portal.doesWalletExist("eip155:1")
    if ethExists {
        print("Ethereum wallet exists")
    }

    // Check Solana wallet
    let solExists = try await portal.doesWalletExist("solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp")
    if solExists {
        print("Solana wallet exists")
    }
} catch {
    print("Error checking chain-specific wallets: \(error)")
}

// Complete example with wallet creation flow
do {
    let exists = try await portal.doesWalletExist()
    if !exists {
        // Create new wallet if none exists
        let newWallet = try await portal.createWallet { status in
            print("Creation status: \(status)")
        }
        print("Created new wallet with ETH address: \(newWallet.ethereum)")

        // Backup the wallet
        let backup = try await portal.backupWallet(.iCloud) { status in
            print("Backup status: \(status)")
        }
        try await backup.storageCallback()
    } else {
        // Wallet exists, fetch addresses
        let addresses = try await portal.getAddresses()
        if let ethAddress = addresses[.eip155] {
            print("Existing ETH address: \(ethAddress ?? "Not found")")
        }
    }
} catch {
    print("Error in wallet management flow: \(error)")
}
Implementation Notes
  • The method checks for the presence of signing shares with a status of .completed
  • Incomplete or pending signing shares are not considered when determining wallet existence
  • The check can be performed for a specific blockchain or across all supported chains
  • Useful for determining whether to trigger wallet creation or recovery flows
Usage in App Flow
  1. Initial App Launch: 
    if try await portal.doesWalletExist() {
    // Navigate to main wallet interface
} else {
    // Show wallet creation/recovery options
}
  2. Chain-Specific Features: 
    if try await portal.doesWalletExist("eip155:1") {
    // Enable Ethereum-specific features
} else {
    // Prompt for Ethereum wallet creation
}
Related Documentation For more information about wallet management, see: