oauth2-mock-server

import { OAuth2Server } from 'oauth2-mock-server'; import axios from 'axios'; async function runMockServerExample() { let server = new OAuth2Server(); // Generate a new RSA key and add it to the keystore await server.issuer.keys.generate('RS256'); // Start the server on a free port, typically a high port for testing // using 0 lets the OS pick a free port, then get the port from server.port await server.start(0, 'localhost'); const port = server.port; console.log('Mock OAuth2 Server started on port:', port); console.log('Issuer URL:', server.issuer.url); // -> http://localhost:PORT // --- Example: Build a token and use it --- try { let token = await server.issuer.buildToken(); console.log('Generated JWT:', token); // Call a remote API with the token (this part won't actually work without a real API) // For demonstration, let's just log what would happen const exampleApiUrl = 'https://api.example.com/secure-data'; console.log(`Attempting to call ${exampleApiUrl} with Bearer token...`); // In a real test, you'd point this to your application's protected endpoint // and your application would validate this token against the mock server's JWKS endpoint. // const response = await axios.get(exampleApiUrl, { // headers: { // authorization: `Bearer ${token}`, // }, // }); // console.log('API Response (simulated):', response.data); // --- Example: Customize next token signing --- server.once('beforeTokenSigning', (modifiedToken) => { console.log('Modifying next token: Adding custom claim "test_claim".'); modifiedToken.payload.test_claim = 'custom_value'; modifiedToken.payload.exp = Math.floor(Date.now() / 1000) + 60; // Make it expire in 60s }); let customToken = await server.issuer.buildToken(); console.log('Generated custom JWT:', customToken); // You would typically decode and assert properties of customToken here in a test. } catch (error) { console.error('Error during mock server operation:', error); } finally { // Stop the server console.log('Stopping mock server...'); await server.stop(); console.log('Mock server stopped.'); } } runMockServerExample();