Go Microservices Architecture
Build scalable microservices with Go, gRPC, and cloud-native patterns
# Golang Microservices
This document provides comprehensive guidelines for golang microservices development and best practices.
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## Microservice Design Patterns
1. **Domain-driven**
- Domain-driven design (DDD) principles
- Implement proper domain-driven design (ddd) principles
- Follow best practices for optimal results
2. **Single**
- Single responsibility per service
- Implement proper single responsibility per service
- Follow best practices for optimal results
3. **Database**
- Database per service pattern
- Implement proper database per service pattern
- Follow best practices for optimal results
4. **API**
- API Gateway for routing and authentication
- Implement proper api gateway for routing and authentication
- Follow best practices for optimal results
5. **Service**
- Service mesh for inter-service communication
- Implement proper service mesh for inter-service communication
- Follow best practices for optimal results
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## Go Best Practices
6. **Use**
- Use interfaces for dependency injection
- Implement proper use interfaces for dependency injection
- Follow best practices for optimal results
7. **Error**
- Error handling with explicit error returns
- Implement proper error handling with explicit error returns
- Follow best practices for optimal results
8. **Context**
- Context for request lifecycle and cancellation
- Implement proper context for request lifecycle and cancellation
- Follow best practices for optimal results
9. **Graceful**
- Graceful shutdown with signal handling
- Implement proper graceful shutdown with signal handling
- Follow best practices for optimal results
10. **Structured**
- Structured logging with slog or logrus
- Implement proper structured logging with slog or logrus
- Follow best practices for optimal results
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## gRPC & Protocol Buffers
11. **Define**
- Define services in .proto files
- Implement proper define services in .proto files
- Follow best practices for optimal results
12. **Generate**
- Generate Go code with protoc
- Implement proper generate go code with protoc
- Follow best practices for optimal results
13. **Implement**
- Implement streaming for real-time data
- Implement proper implement streaming for real-time data
- Follow best practices for optimal results
14. **Error**
- Error handling with gRPC status codes
- Implement proper error handling with grpc status codes
- Follow best practices for optimal results
15. **Interceptors**
- Interceptors for cross-cutting concerns
- Implement proper interceptors for cross-cutting concerns
- Follow best practices for optimal results
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## HTTP API Development
16. **Use**
- Use Gin or Echo for HTTP frameworks
- Implement proper use gin or echo for http frameworks
- Follow best practices for optimal results
17. **REST**
- REST API design principles
- Implement proper rest api design principles
- Follow best practices for optimal results
18. **Middleware**
- Middleware for authentication and logging
- Implement proper middleware for authentication and logging
- Follow best practices for optimal results
19. **Request**
- Request validation and sanitization
- Implement proper request validation and sanitization
- Follow best practices for optimal results
20. **OpenAPI/Swagger**
- OpenAPI/Swagger documentation
- Implement proper openapi/swagger documentation
- Follow best practices for optimal results
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## Database Patterns
21. **Repository**
- Repository pattern for data access
- Implement proper repository pattern for data access
- Follow best practices for optimal results
22. **Database**
- Database migrations with migrate
- Implement proper database migrations with migrate
- Follow best practices for optimal results
23. **Connection**
- Connection pooling and management
- Implement proper connection pooling and management
- Follow best practices for optimal results
24. **Transaction**
- Transaction handling
- Implement proper transaction handling
- Follow best practices for optimal results
25. **Query**
- Query optimization
- Implement proper query optimization
- Follow best practices for optimal results
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## Service Communication
26. **Synchronous:**
- Synchronous: HTTP/REST and gRPC
- Implement proper synchronous: http/rest and grpc
- Follow best practices for optimal results
27. **Asynchronous:**
- Asynchronous: Message queues (NATS, RabbitMQ)
- Implement proper asynchronous: message queues (nats, rabbitmq)
- Follow best practices for optimal results
28. **Event-driven**
- Event-driven architecture patterns
- Implement proper event-driven architecture patterns
- Follow best practices for optimal results
29. **Circuit**
- Circuit breaker pattern for resilience
- Implement proper circuit breaker pattern for resilience
- Follow best practices for optimal results
30. **Retry**
- Retry mechanisms with exponential backoff
- Implement proper retry mechanisms with exponential backoff
- Follow best practices for optimal results
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## Configuration & Environment
31. **12-factor**
- 12-factor app principles
- Implement proper 12-factor app principles
- Follow best practices for optimal results
32. **Environment-based**
- Environment-based configuration
- Implement proper environment-based configuration
- Follow best practices for optimal results
33. **Configuration**
- Configuration validation
- Implement proper configuration validation
- Follow best practices for optimal results
34. **Secret**
- Secret management
- Implement proper secret management
- Follow best practices for optimal results
35. **Feature**
- Feature flags
- Implement proper feature flags
- Follow best practices for optimal results
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## Observability
36. **Structured**
- Structured logging
- Implement proper structured logging
- Follow best practices for optimal results
37. **Metrics**
- Metrics with Prometheus
- Implement proper metrics with prometheus
- Follow best practices for optimal results
38. **Distributed**
- Distributed tracing with Jaeger
- Implement proper distributed tracing with jaeger
- Follow best practices for optimal results
39. **Health**
- Health checks and readiness probes
- Implement proper health checks and readiness probes
- Follow best practices for optimal results
40. **Error**
- Error monitoring and alerting
- Implement proper error monitoring and alerting
- Follow best practices for optimal results
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## Testing
41. **Unit**
- Unit tests with testify
- Implement proper unit tests with testify
- Follow best practices for optimal results
42. **Integration**
- Integration tests with test containers
- Implement proper integration tests with test containers
- Follow best practices for optimal results
43. **Mock**
- Mock generation with gomock
- Implement proper mock generation with gomock
- Follow best practices for optimal results
44. **Property-based**
- Property-based testing
- Implement proper property-based testing
- Follow best practices for optimal results
45. **Benchmarking**
- Benchmarking and profiling
- Implement proper benchmarking and profiling
- Follow best practices for optimal results
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## Deployment
46. **Docker**
- Docker containerization
- Implement proper docker containerization
- Follow best practices for optimal results
47. **Kubernetes**
- Kubernetes deployment manifests
- Implement proper kubernetes deployment manifests
- Follow best practices for optimal results
48. **Helm**
- Helm charts for configuration
- Implement proper helm charts for configuration
- Follow best practices for optimal results
49. **CI/CD**
- CI/CD pipelines
- Implement proper ci/cd pipelines
- Follow best practices for optimal results
50. **Blue-green**
- Blue-green and canary deployments
- Implement proper blue-green and canary deployments
- Follow best practices for optimal results
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## Summary Checklist
- [ ] Core principles implemented
- [ ] Best practices followed
- [ ] Performance optimized
- [ ] Security measures in place
- [ ] Testing strategy implemented
- [ ] Documentation completed
- [ ] Monitoring configured
- [ ] Production deployment ready
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Follow these comprehensive guidelines for successful golang microservices implementation.