#api-testing

Test API endpoints comprehensively. Approach: 1. Test full request/response cycle. 2. Use real database (test instance). 3. Setup/teardown for clean state. 4. Test authentication and authorization. 5. Validate response schemas. 6. Test error scenarios. 7. Performance testing. 8. Security testing. Use Supertest or similar. Run in CI/CD. Separate from unit tests. Mock external APIs.