react-native-keychain

import * as Keychain from 'react-native-keychain'; async function storeAndRetrieveCredentials(username: string, password_input: string) { try { // Store the credentials await Keychain.setGenericPassword(username, password_input, { service: 'myAppService', accessControl: Keychain.ACCESSIBLE.WHEN_UNLOCKED_THIS_DEVICE_ONLY, securityLevel: Keychain.SECURITY_LEVEL.SECURE_SOFTWARE }); console.log('Credentials successfully stored!'); // Retrieve the credentials const credentials = await Keychain.getGenericPassword({ service: 'myAppService' }); if (credentials) { console.log('Credentials successfully loaded for user ' + credentials.username); console.log('Password is ' + credentials.password); // In a real app, you would use these credentials, not log the password directly. } else { console.log('No credentials stored.'); } // Example of resetting credentials await Keychain.resetGenericPassword({ service: 'myAppService' }); console.log('Credentials successfully reset!'); } catch (error) { console.error('Keychain operation failed', error); } } // Example usage: // Use environment variables or secure inputs in a real application const myUsername = process.env.KEYCHAIN_USERNAME ?? 'testuser'; const myPassword = process.env.KEYCHAIN_PASSWORD ?? 'supersecretpassword'; storeAndRetrieveCredentials(myUsername, myPassword);