Openfort React Native SDK

Quickstart sample: https://github.com/openfort-xyz/react-native-auth-sample

Usage notes

Account type and gas

The embedded wallet can be a smart account (default) or an EOA (accountType: AccountTypeEnum.EOA). Gas sponsorship (walletConfig.feeSponsorshipId) applies to smart accounts — an EOA pays its own gas in the chain's native token. Choose an EOA when it must own or sign for an external contract (e.g. a Safe), since smart-account owners require ERC-1271 contract signatures.

Wallet recovery without a backend

recoveryMethod: 'password' (or 'passkey') encrypts the key share on the client, so no Shield encryption-session backend is required. recoveryMethod: 'automatic' needs a getEncryptionSession callback (and a backend) instead.

Authentication hooks

Sign-in lives in dedicated hooks: useGuestAuth (signUpGuest), useEmailAuthOtp (requestEmailOtp → signInEmailOtp, passwordless), useEmailAuth (email + password), useOAuth, usePhoneAuthOtp, useWalletAuth, and useSignOut. A successful sign-in refreshes the session — read the user with useUser.

These methods resolve with { user?, error? }; they do not throw. Check error on the result instead of wrapping the call in try/catch:

const { requestEmailOtp, signInEmailOtp } = useEmailAuthOtp()

await requestEmailOtp({ email })
const { error } = await signInEmailOtp({ email, otp })
if (error) {
  // surface error.message — a thrown-exception handler will not catch this
}

Creating and connecting a wallet

useEmbeddedEthereumWallet().create() returns the new account but does not activate it — call setActive({ address }) afterwards to reach the connected state (with a provider). create() accepts the same recovery options as setActive().

Supported EIP-1193 methods

The embedded Ethereum provider (await wallet.getProvider()) supports, among others: eth_accounts, eth_chainId, eth_call, eth_getTransactionReceipt, eth_sendTransaction, wallet_sendCalls, personal_sign, and eth_signTypedData_v4.

Expo: reading env into app.config.js

When reading secrets from .env in app.config.js, use the function form so it merges app.json instead of replacing it (a static object drops scheme, plugins, ios, etc. and breaks expo run:ios):

// app.config.js
export default ({ config }) => ({
  ...config,
  extra: { ...config.extra, /* values from process.env */ },
})