Node.js Microservices Architecture
Build scalable microservices with Node.js, Express, and distributed system patterns
# Nodejs Microservices
This document provides comprehensive guidelines for nodejs microservices development and best practices.
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## Microservices Fundamentals
1. **Service**
- Service decomposition strategies
- Implement proper service decomposition strategies
- Follow best practices for optimal results
2. **Domain-driven**
- Domain-driven design principles
- Implement proper domain-driven design principles
- Follow best practices for optimal results
3. **API-first**
- API-first development approach
- Implement proper api-first development approach
- Follow best practices for optimal results
4. **Service**
- Service mesh architecture
- Implement proper service mesh architecture
- Follow best practices for optimal results
5. **Event-driven**
- Event-driven communication
- Implement proper event-driven communication
- Follow best practices for optimal results
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## Node.js Backend Development
6. **Express.js**
- Express.js framework mastery
- Implement proper express.js framework mastery
- Follow best practices for optimal results
7. **Fastify**
- Fastify for high performance
- Implement proper fastify for high performance
- Follow best practices for optimal results
8. **Koa.js**
- Koa.js for modern async handling
- Implement proper koa.js for modern async handling
- Follow best practices for optimal results
9. **Middleware**
- Middleware patterns and composition
- Implement proper middleware patterns and composition
- Follow best practices for optimal results
10. **Error**
- Error handling and logging
- Implement proper error handling and logging
- Follow best practices for optimal results
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## API Development
11. **RESTful**
- RESTful API design principles
- Implement proper restful api design principles
- Follow best practices for optimal results
12. **GraphQL**
- GraphQL API implementation
- Implement proper graphql api implementation
- Follow best practices for optimal results
13. **API**
- API versioning strategies
- Implement proper api versioning strategies
- Follow best practices for optimal results
14. **OpenAPI**
- OpenAPI documentation
- Implement proper openapi documentation
- Follow best practices for optimal results
15. **Rate**
- Rate limiting and throttling
- Implement proper rate limiting and throttling
- Follow best practices for optimal results
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## Database Integration
16. **MongoDB**
- MongoDB with Mongoose ODM
- Implement proper mongodb with mongoose odm
- Follow best practices for optimal results
17. **PostgreSQL**
- PostgreSQL with Sequelize/Prisma
- Implement proper postgresql with sequelize/prisma
- Follow best practices for optimal results
18. **Redis**
- Redis for caching and sessions
- Implement proper redis for caching and sessions
- Follow best practices for optimal results
19. **Database**
- Database per service pattern
- Implement proper database per service pattern
- Follow best practices for optimal results
20. **Connection**
- Connection pooling and optimization
- Implement proper connection pooling and optimization
- Follow best practices for optimal results
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## Authentication & Authorization
21. **JWT**
- JWT token-based authentication
- Implement proper jwt token-based authentication
- Follow best practices for optimal results
22. **OAuth**
- OAuth 2.0 and OpenID Connect
- Implement proper oauth 2.0 and openid connect
- Follow best practices for optimal results
23. **Passport.js**
- Passport.js integration
- Implement proper passport.js integration
- Follow best practices for optimal results
24. **Role-based**
- Role-based access control
- Implement proper role-based access control
- Follow best practices for optimal results
25. **API**
- API key management
- Implement proper api key management
- Follow best practices for optimal results
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## Service Communication
26. **HTTP/REST**
- HTTP/REST inter-service calls
- Implement proper http/rest inter-service calls
- Follow best practices for optimal results
27. **Message**
- Message queues (RabbitMQ, Apache Kafka)
- Implement proper message queues (rabbitmq, apache kafka)
- Follow best practices for optimal results
28. **Event-driven**
- Event-driven architecture
- Implement proper event-driven architecture
- Follow best practices for optimal results
29. **Circuit**
- Circuit breaker pattern
- Implement proper circuit breaker pattern
- Follow best practices for optimal results
30. **Service**
- Service discovery mechanisms
- Implement proper service discovery mechanisms
- Follow best practices for optimal results
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## Monitoring & Observability
31. **Application**
- Application logging with Winston
- Implement proper application logging with winston
- Follow best practices for optimal results
32. **Metrics**
- Metrics collection with Prometheus
- Implement proper metrics collection with prometheus
- Follow best practices for optimal results
33. **Distributed**
- Distributed tracing with Jaeger
- Implement proper distributed tracing with jaeger
- Follow best practices for optimal results
34. **Health**
- Health checks and readiness probes
- Implement proper health checks and readiness probes
- Follow best practices for optimal results
35. **Error**
- Error monitoring with Sentry
- Implement proper error monitoring with sentry
- Follow best practices for optimal results
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## Testing Strategies
36. **Unit**
- Unit testing with Jest
- Implement proper unit testing with jest
- Follow best practices for optimal results
37. **Integration**
- Integration testing with Supertest
- Implement proper integration testing with supertest
- Follow best practices for optimal results
38. **Contract**
- Contract testing with Pact
- Implement proper contract testing with pact
- Follow best practices for optimal results
39. **Load**
- Load testing with Artillery
- Implement proper load testing with artillery
- Follow best practices for optimal results
40. **End-to-end**
- End-to-end testing automation
- Implement proper end-to-end testing automation
- Follow best practices for optimal results
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## Performance Optimization
41. **Event**
- Event loop optimization
- Implement proper event loop optimization
- Follow best practices for optimal results
42. **Memory**
- Memory leak prevention
- Implement proper memory leak prevention
- Follow best practices for optimal results
43. **CPU**
- CPU profiling and optimization
- Implement proper cpu profiling and optimization
- Follow best practices for optimal results
44. **Database**
- Database query optimization
- Implement proper database query optimization
- Follow best practices for optimal results
45. **Caching**
- Caching strategies
- Implement proper caching strategies
- Follow best practices for optimal results
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## Security Best Practices
46. **Input**
- Input validation and sanitization
- Implement proper input validation and sanitization
- Follow best practices for optimal results
47. **Helmet.js**
- Helmet.js for security headers
- Implement proper helmet.js for security headers
- Follow best practices for optimal results
48. **CORS**
- CORS configuration
- Implement proper cors configuration
- Follow best practices for optimal results
49. **SQL**
- SQL injection prevention
- Implement proper sql injection prevention
- Follow best practices for optimal results
50. **Secrets**
- Secrets management
- Implement proper secrets management
- Follow best practices for optimal results
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## Deployment & DevOps
51. **Docker**
- Docker containerization
- Implement proper docker containerization
- Follow best practices for optimal results
52. **Kubernetes**
- Kubernetes orchestration
- Implement proper kubernetes orchestration
- Follow best practices for optimal results
53. **CI/CD**
- CI/CD pipeline integration
- Implement proper ci/cd pipeline integration
- Follow best practices for optimal results
54. **Blue-green**
- Blue-green deployments
- Implement proper blue-green deployments
- Follow best practices for optimal results
55. **Auto-scaling**
- Auto-scaling configuration
- Implement proper auto-scaling configuration
- Follow best practices for optimal results
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## Message Patterns
56. **Publish-subscribe**
- Publish-subscribe messaging
- Implement proper publish-subscribe messaging
- Follow best practices for optimal results
57. **Request-reply**
- Request-reply patterns
- Implement proper request-reply patterns
- Follow best practices for optimal results
58. **Event**
- Event sourcing implementation
- Implement proper event sourcing implementation
- Follow best practices for optimal results
59. **Saga**
- Saga pattern for transactions
- Implement proper saga pattern for transactions
- Follow best practices for optimal results
60. **Dead**
- Dead letter queue handling
- Implement proper dead letter queue handling
- Follow best practices for optimal results
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## Configuration Management
61. **Environment-based**
- Environment-based configuration
- Implement proper environment-based configuration
- Follow best practices for optimal results
62. **Configuration**
- Configuration validation
- Implement proper configuration validation
- Follow best practices for optimal results
63. **Feature**
- Feature flags implementation
- Implement proper feature flags implementation
- Follow best practices for optimal results
64. **Secret**
- Secret rotation strategies
- Implement proper secret rotation strategies
- Follow best practices for optimal results
65. **Multi-environment**
- Multi-environment deployment
- Implement proper multi-environment deployment
- Follow best practices for optimal results
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## Error Handling
66. **Global**
- Global error handling middleware
- Implement proper global error handling middleware
- Follow best practices for optimal results
67. **Graceful**
- Graceful error responses
- Implement proper graceful error responses
- Follow best practices for optimal results
68. **Circuit**
- Circuit breaker implementation
- Implement proper circuit breaker implementation
- Follow best practices for optimal results
69. **Retry**
- Retry mechanisms with exponential backoff
- Implement proper retry mechanisms with exponential backoff
- Follow best practices for optimal results
70. **Fallback**
- Fallback strategies
- Implement proper fallback strategies
- Follow best practices for optimal results
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## Stream Processing
71. **Node.js**
- Node.js streams API
- Implement proper node.js streams api
- Follow best practices for optimal results
72. **Real-time**
- Real-time data processing
- Implement proper real-time data processing
- Follow best practices for optimal results
73. **WebSocket**
- WebSocket integration
- Implement proper websocket integration
- Follow best practices for optimal results
74. **Server-sent**
- Server-sent events
- Implement proper server-sent events
- Follow best practices for optimal results
75. **Backpressure**
- Backpressure handling
- Implement proper backpressure handling
- Follow best practices for optimal results
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## Production Readiness
76. **Process**
- Process management with PM2
- Implement proper process management with pm2
- Follow best practices for optimal results
77. **Cluster**
- Cluster mode for scalability
- Implement proper cluster mode for scalability
- Follow best practices for optimal results
78. **Memory**
- Memory and CPU monitoring
- Implement proper memory and cpu monitoring
- Follow best practices for optimal results
79. **Log**
- Log aggregation
- Implement proper log aggregation
- Follow best practices for optimal results
80. **Incident**
- Incident response procedures
- Implement proper incident response procedures
- 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 nodejs microservices implementation.