API Design and Development

  1. Testing APIs
    1. Testing Strategy and Planning
      1. Test Planning
        1. Test Scope Definition
          1. Risk Assessment
          2. Testing Pyramid in an API Context
            1. Unit, Integration, and E2E Testing Layers
              1. Balancing Test Coverage
                1. Cost vs. Value Analysis
                2. Test Environment Management
                  1. Environment Isolation
                    1. Test Data Management
                  2. Unit Testing
                    1. Testing Individual Functions and Logic
                      1. Pure Function Testing
                        1. Business Logic Testing
                        2. Mocking Dependencies
                          1. Mock Objects
                            1. Stub Services
                              1. Dependency Injection for Testing
                              2. Test-Driven Development (TDD)
                                1. Red-Green-Refactor Cycle
                                  1. Test-First Approach
                                  2. Code Coverage
                                    1. Coverage Metrics
                                      1. Coverage Tools
                                    2. Integration Testing
                                      1. Testing Interactions Between Components
                                        1. Service Integration
                                          1. Module Integration
                                          2. Testing Database Connectivity
                                            1. Database Test Fixtures
                                              1. Transaction Management
                                              2. Testing External Service Integrations
                                                1. Third-Party API Testing
                                                  1. Service Virtualization
                                                  2. API Integration Testing
                                                    1. Request-Response Validation
                                                      1. Data Flow Testing
                                                    2. End-to-End (E2E) Testing
                                                      1. Simulating Real User Scenarios
                                                        1. User Journey Testing
                                                          1. Workflow Validation
                                                          2. Validating the Full Request-Response Flow
                                                            1. Complete System Testing
                                                              1. Cross-Service Testing
                                                              2. Test Automation Tools
                                                                1. Postman/Newman
                                                                  1. REST Assured
                                                                    1. Karate
                                                                      1. Insomnia
                                                                      2. Test Data Management
                                                                        1. Test Data Creation
                                                                          1. Data Cleanup
                                                                        2. Contract Testing
                                                                          1. Ensuring Producer and Consumer Adherence to the API Contract
                                                                            1. Contract Definition
                                                                              1. Contract Verification
                                                                              2. Tools like Pact
                                                                                1. Consumer-Driven Contracts
                                                                                  1. Provider Verification
                                                                                  2. Mock Servers and Stubs
                                                                                    1. Service Virtualization
                                                                                      1. Stub Generation
                                                                                      2. Schema Validation Testing
                                                                                        1. Request Schema Validation
                                                                                          1. Response Schema Validation
                                                                                        2. Performance and Load Testing
                                                                                          1. Performance Testing Types
                                                                                            1. Load Testing
                                                                                              1. Stress Testing
                                                                                                1. Volume Testing
                                                                                                  1. Spike Testing
                                                                                                  2. Measuring Response Times
                                                                                                    1. Latency Metrics
                                                                                                      1. Percentile Analysis
                                                                                                      2. Determining System Capacity
                                                                                                        1. Throughput Measurement
                                                                                                          1. Resource Utilization
                                                                                                          2. Load Testing Tools
                                                                                                            1. JMeter
                                                                                                              1. Test Plan Creation
                                                                                                                1. Result Analysis
                                                                                                                2. k6
                                                                                                                  1. JavaScript-Based Testing
                                                                                                                    1. Cloud Testing
                                                                                                                    2. Gatling
                                                                                                                      1. Scala-Based Testing
                                                                                                                        1. Real-Time Monitoring
                                                                                                                        2. Artillery
                                                                                                                          1. Node.js Testing
                                                                                                                            1. Scenario Definition
                                                                                                                          2. Performance Monitoring
                                                                                                                            1. Real-Time Metrics
                                                                                                                              1. Performance Baselines
                                                                                                                            2. Security Testing
                                                                                                                              1. Penetration Testing
                                                                                                                                1. Manual Testing
                                                                                                                                  1. Automated Scanning
                                                                                                                                  2. Vulnerability Scanning
                                                                                                                                    1. OWASP Top 10
                                                                                                                                      1. Security Scanners
                                                                                                                                      2. Automated Security Testing Tools
                                                                                                                                        1. SAST (Static Application Security Testing)
                                                                                                                                          1. DAST (Dynamic Application Security Testing)
                                                                                                                                          2. Authentication and Authorization Testing
                                                                                                                                            1. Access Control Testing
                                                                                                                                              1. Token Security Testing
                                                                                                                                              2. Input Validation Testing
                                                                                                                                                1. Injection Attack Testing
                                                                                                                                                  1. Boundary Value Testing

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                                                                                                                                              9. API Lifecycle Management