Endpoint Design
Endpoint Patterns
GET /products → List products
GET /products/123 → Get product 123
POST /products → Create product
PUT /products/123 → Update product 123
DELETE /products/123 → Delete product 123
Nested Resources
GET /products/123/reviews → Reviews for product 123
POST /products/123/reviews → Add review to product 123
Key Points
- Understanding API Design: Endpoints is essential for production systems
- Always consider scalability and maintainability
- Test thoroughly before deploying to production
- Monitor performance and set up alerting
Common Patterns
- Validation: Always validate input at the boundary
- Error Handling: Use structured error responses
- Logging: Log key events for debugging
- Testing: Unit, integration, and load tests
- Documentation: Keep docs updated with code changes
API Best Practices
Design Principles
- Use nouns, not verbs
- Plural resource names
- Consistent naming conventions
- Proper HTTP status codes
Versioning
- URI versioning (/v1/resource)
- Header versioning
- Deprecation policy
Documentation
- OpenAPI/Swagger specs
- Request/Response examples
- Error code documentation
- Rate limit documentation
Key Points
- Understanding API Design: Endpoints is essential for production systems
- Always consider scalability and maintainability
- Test thoroughly before deploying to production
- Monitor performance and set up alerting
Common Patterns
- Validation: Always validate input at the boundary
- Error Handling: Use structured error responses
- Logging: Log key events for debugging
- Testing: Unit, integration, and load tests
- Documentation: Keep docs updated with code changes
Practice Problems
Design and implement a solution for API Design: Endpoints in a backend system. Consider scalability, error handling, and production readiness.
Solution
// API Design: Endpoints implementation
// Key aspects: validation, error handling, logging, testing
public class APIDesignEndpoints {
// Production-ready implementation
}Identify and handle edge cases for API Design: Endpoints. What happens under high load, with invalid input, or during failures?
Solution
// Edge case handling:
// 1. Null/empty input -> validation
// 2. High load -> rate limiting, queuing
// 3. Failures -> retries, circuit breaker
// 4. Concurrent access -> locks, idempotencyWrite a testing strategy for API Design: Endpoints. Include unit tests, integration tests, and performance tests.
Solution
// Test plan:
// - Unit: 80% coverage target
// - Integration: API contracts
// - Performance: latency, throughput
// - Chaos: failure injectionQuiz
1. Endpoint naming uses?
2. GET /products/123 does?
3. What is the primary purpose of API Design: Endpoints?
4. What is a common mistake when implementing API Design: Endpoints?
Flashcards
Question
Endpoint naming?
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Answer
Plural nouns (/products)
Question
GET /id?
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Answer
Retrieves specific resource
Question
What is API Design: Endpoints?
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Answer
API Design: Endpoints is a key concept in backend development.
Question
When to use API Design: Endpoints?
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Answer
Use API Design: Endpoints when building production systems that require reliability, scalability, and maintainability.
Question
API Design: Endpoints best practices
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Answer
Follow SOLID principles, write clean code, test thoroughly, document decisions, and monitor in production.
Revision Notes
Key Takeaways
- 1.Use plural nouns for endpoints
- 2.GET for read, POST for create, PUT for update, DELETE for remove
- 3.Nested for relationships: /products/123/reviews
Interview Tips
- •Design endpoints for given scenario
- •Apply naming conventions
Cheat Sheet
Endpoints
- Plural nouns: /products
- GET: read, POST: create, PUT: update, DELETE: remove
- Nested: /products/123/reviews