better-auth-solana

import { createAuthClient } from 'better-auth/client' import { createSIWSInput, siwsClient } from 'better-auth-solana/client' // Placeholder for your wallet's sign function async function signWithYourWallet(siwsInput: any): Promise<{ message: string; signature: string }> { console.log('Signing message with wallet:', siwsInput) // In a real app, this would involve connecting to a Solana wallet (e.g., Phantom, Solflare) // and using its sign message functionality. For demonstration, we'll return a mock. const mockSignature = 'mock_signature_' + Date.now() return { message: JSON.stringify(siwsInput), signature: mockSignature } } // Assume 'address' is the connected Solana wallet address const address = 'GMtGgT8d6R3FwYxK2c3L4p5Q6r7S8t9U0v1W2x3Y4z5' const authClient = createAuthClient({ plugins: [siwsClient()], }) async function performSolanaSignIn() { try { const nonceResult = await authClient.siws.nonce({ walletAddress: address, }) if (!nonceResult.data) { throw new Error('Failed to request SIWS nonce') } const siwsInput = createSIWSInput({ address, challenge: nonceResult.data, statement: 'Sign in to Example', domain: 'example.com', // Must match the domain configured on the server uri: 'https://example.com/siws', // The current application URI chainId: 'solana:mainnet', // Solana network chain ID version: '1' // SIWS version }) const signed = await signWithYourWallet(siwsInput) await authClient.siws.verify({ message: signed.message, signature: signed.signature, walletAddress: address, }) const session = await authClient.getSession() console.log('Successfully signed in:', session) } catch (error) { console.error('SIWS sign-in failed:', error) } } performSolanaSignIn()