Flutter SDK API

import 'package:para/src/auth_extensions.dart';

import 'package:para/para_evm_signer.dart';

final signer = ParaEvmSigner(
  para: para,
  walletId: wallet.id, // Optional, uses first EVM wallet if not provided
);

// Use with ethers.js
final provider = JsonRpcProvider('https://rpc-url');
final contract = Contract(contractAddress, abi, signer);

import 'package:para/para_solana_web3_signer.dart';
import 'package:solana_web3/solana_web3.dart' as web3;

final signer = ParaSolanaWeb3Signer(
  para: para,
  solanaClient: solanaClient, // Required: SolanaClient instance
  walletId: wallet.id, // Optional, uses first Solana wallet if not provided
);

// Use signer for transactions
final signedTx = await signer.signTransaction(transaction);
final signature = await signer.sendTransaction(signedTx, connection);

enum Environment {
  dev,      // Development environment
  sandbox,  // Sandbox for testing
  beta,     // Beta environment
  prod      // Production environment
}

class Auth {
  static AuthEmail email(String email);
  static AuthPhone phone(String phoneNumber);
}

class AuthState {
  final AuthStage stage;           // Current authentication stage
  final String? userId;            // User's unique identifier
  final AuthIdentity auth;         // Authentication identity details
  final String? displayName;       // User's display name
  final String? pfpUrl;           // Profile picture URL
  final String? username;         // Username
  final Map<String, dynamic>? externalWallet; // External wallet info
  final String? passkeyUrl;       // URL for passkey authentication
  final String? passkeyId;        // Passkey identifier
  final String? passwordUrl;      // URL for password authentication
  // Additional properties for specific auth flows
}

class AuthIdentity {
  final String? email;
  final String? phoneNumber;
  final String? fid;              // Farcaster ID
  final String? telegramUserId;
  // Other identity types
}

enum AuthStage {
  verify,  // Need to verify email/phone
  login,   // Existing user, proceed to login
  signup   // New user, proceed to signup
}

enum SignupMethod {
  passkey,  // Hardware-backed passkey
  password  // Password-based authentication
}

enum OAuthMethod {
  google,
  twitter,
  apple,
  discord,
  facebook
}

enum WalletType {
  evm,     // Ethereum and EVM-compatible chains
  solana,  // Solana blockchain
  cosmos   // Cosmos-based chains
}

class ParaFuture<T> {
  final Future<T> future;    // The actual future
  final String requestId;    // ID for cancellation
}

class Wallet {
  final String id;
  final String address;
  final WalletType type;
  final WalletScheme scheme;
  final String? userId;         // Associated user ID
  final DateTime? createdAt;    // Creation timestamp
  final String? publicKey;      // Wallet public key
  final bool? isPregen;         // Whether this is a pregenerated wallet
  // Additional optional fields available
}

// Abstract base class
abstract class SignatureResult {}

// Successful signature
class SuccessfulSignatureResult extends SignatureResult {
  final String signature;
  SuccessfulSignatureResult(this.signature);
}

// Denied signature
class DeniedSignatureResult extends SignatureResult {
  final String? pendingTransactionId;
  DeniedSignatureResult(this.pendingTransactionId);
}

// Denied with URL
class DeniedSignatureResultWithUrl extends SignatureResult {
  final String? pendingTransactionId;
  final String url;
  DeniedSignatureResultWithUrl({this.pendingTransactionId, required this.url});
}