API Design and Development

  1. API Development and Implementation
    1. Choosing a Technology Stack
      1. Programming Languages
        1. Node.js
          1. Express.js
            1. Fastify
              1. Koa.js
              2. Python
                1. Django REST Framework
                  1. FastAPI
                    1. Flask
                    2. Go
                      1. Gin
                        1. Echo
                          1. Gorilla Mux
                          2. Java
                            1. Spring Boot
                              1. JAX-RS
                                1. Micronaut
                                2. C#
                                  1. ASP.NET Core
                                    1. Web API
                                    2. Ruby
                                      1. Ruby on Rails
                                        1. Sinatra
                                        2. PHP
                                          1. Laravel
                                            1. Symfony
                                          2. Database Technologies
                                            1. Relational Databases
                                              1. PostgreSQL
                                                1. MySQL
                                                  1. SQL Server
                                                  2. NoSQL Databases
                                                    1. MongoDB
                                                      1. Redis
                                                        1. Cassandra
                                                        2. Graph Databases
                                                          1. Neo4j
                                                            1. Amazon Neptune
                                                          2. Infrastructure Considerations
                                                            1. Cloud Platforms
                                                              1. AWS
                                                                1. Google Cloud
                                                                  1. Azure
                                                                  2. Containerization
                                                                    1. Docker
                                                                      1. Kubernetes
                                                                      2. Serverless Computing
                                                                        1. AWS Lambda
                                                                          1. Google Cloud Functions
                                                                            1. Azure Functions
                                                                        2. Project Structure and Architecture
                                                                          1. Layered Architecture
                                                                            1. Presentation Layer
                                                                              1. Business Logic Layer
                                                                                1. Data Access Layer
                                                                                2. Clean Architecture
                                                                                  1. Dependency Inversion
                                                                                    1. Use Cases
                                                                                      1. Entities
                                                                                      2. Microservices Architecture
                                                                                        1. Service Decomposition
                                                                                          1. Inter-Service Communication
                                                                                            1. Data Management
                                                                                          2. Implementing Endpoints
                                                                                            1. Routing Requests
                                                                                              1. Defining Routes
                                                                                                1. Static Routes
                                                                                                  1. Dynamic Routes
                                                                                                  2. Path Parameters and Query Parameters
                                                                                                    1. Parameter Extraction
                                                                                                      1. Parameter Validation
                                                                                                      2. Route Organization
                                                                                                        1. Route Groups
                                                                                                          1. Middleware Application
                                                                                                        2. Controller/Handler Logic
                                                                                                          1. Separation of Concerns
                                                                                                            1. Thin Controllers
                                                                                                              1. Business Logic Delegation
                                                                                                              2. Error Handling in Controllers
                                                                                                                1. Exception Handling
                                                                                                                  1. Error Response Generation
                                                                                                                  2. Request Processing Flow
                                                                                                                    1. Input Validation
                                                                                                                      1. Business Logic Execution
                                                                                                                        1. Response Formatting
                                                                                                                    2. Business Logic and Service Layers
                                                                                                                      1. Separating Concerns
                                                                                                                        1. Single Responsibility Principle
                                                                                                                          1. Dependency Injection
                                                                                                                          2. Service Layer Patterns
                                                                                                                            1. Service Objects
                                                                                                                              1. Domain Services
                                                                                                                                1. Application Services
                                                                                                                                2. Interacting with Databases and Other Services
                                                                                                                                  1. Database Abstraction
                                                                                                                                    1. Repository Pattern
                                                                                                                                      1. Data Access Objects
                                                                                                                                      2. External API Calls
                                                                                                                                        1. HTTP Clients
                                                                                                                                          1. Circuit Breakers
                                                                                                                                            1. Retry Logic
                                                                                                                                            2. Caching Strategies
                                                                                                                                              1. In-Memory Caching
                                                                                                                                                1. Distributed Caching
                                                                                                                                            3. Data Transformation and Validation
                                                                                                                                              1. Data Transfer Objects (DTOs)
                                                                                                                                                1. Mapping Between Layers
                                                                                                                                                  1. Serialization/Deserialization
                                                                                                                                                  2. Input Validation Libraries
                                                                                                                                                    1. Schema Validation
                                                                                                                                                      1. JSON Schema
                                                                                                                                                        1. Joi
                                                                                                                                                          1. Yup
                                                                                                                                                          2. Custom Validators
                                                                                                                                                            1. Business Rule Validation
                                                                                                                                                              1. Cross-Field Validation
                                                                                                                                                            2. Data Mapping
                                                                                                                                                              1. Object-Relational Mapping (ORM)
                                                                                                                                                                1. Object-Document Mapping (ODM)
                                                                                                                                                                  1. Manual Mapping
                                                                                                                                                                2. Middleware
                                                                                                                                                                  1. Request Processing Pipeline
                                                                                                                                                                    1. Middleware Ordering
                                                                                                                                                                      1. Middleware Composition
                                                                                                                                                                      2. Logging
                                                                                                                                                                        1. Request and Response Logging
                                                                                                                                                                          1. Structured Logging
                                                                                                                                                                            1. Log Levels
                                                                                                                                                                            2. Error Logging
                                                                                                                                                                              1. Stack Traces
                                                                                                                                                                                1. Context Information
                                                                                                                                                                                2. Performance Logging
                                                                                                                                                                                  1. Response Times
                                                                                                                                                                                    1. Resource Usage
                                                                                                                                                                                  2. Authentication
                                                                                                                                                                                    1. Middleware for Auth Checks
                                                                                                                                                                                      1. Token Validation
                                                                                                                                                                                        1. User Context Setting
                                                                                                                                                                                      2. Request Parsing
                                                                                                                                                                                        1. Body Parsing
                                                                                                                                                                                          1. JSON Parsing
                                                                                                                                                                                            1. Form Data Parsing
                                                                                                                                                                                            2. Query Parsing
                                                                                                                                                                                              1. Parameter Extraction
                                                                                                                                                                                                1. Type Conversion
                                                                                                                                                                                              2. Error Handling Middleware
                                                                                                                                                                                                1. Global Error Handling
                                                                                                                                                                                                  1. Error Response Formatting
                                                                                                                                                                                                    1. Error Logging
                                                                                                                                                                                                    2. CORS Middleware
                                                                                                                                                                                                      1. Cross-Origin Request Handling
                                                                                                                                                                                                        1. Preflight Response
                                                                                                                                                                                                        2. Compression Middleware
                                                                                                                                                                                                          1. Response Compression
                                                                                                                                                                                                            1. Content Encoding

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                                                                                                                                                                                                        7. API Documentation