Microservices
Software ArchitectureMicroservices is an architectural approach where applications are built as a collection of small, independent services that communicate over well-defined APIs. Each service is owned by a small team and can be developed, deployed, and scaled independently.
Key Characteristics
- Single Responsibility: Each service focuses on one business capability
- Decentralized: Services manage their own data and business logic
- Independent Deployment: Services can be deployed separately
- Technology Agnostic: Different services can use different technologies
- Fault Isolation: Failure in one service doesn't bring down the entire system
Microservices vs Monolith
// Monolithic Architecture class ECommerceApp { userService() { /*
user management */ } productService() { /* product catalog */ }
orderService() { /* order processing */ } paymentService() { /*
payment processing */ } } // Microservices Architecture // User
Service (separate application) app.get('/users/:id', getUserById);
// Product Service (separate application) app.get('/products/:id',
getProductById); // Order Service (separate application)
app.post('/orders', createOrder); // Payment Service (separate
application) app.post('/payments', processPayment);
Benefits & Challenges
Benefits: Scalability, technology diversity, team autonomy, faster deployment cycles.
Challenges: Increased complexity, network latency, data consistency, monitoring and debugging across services.