#Api

33 questions

• What are Route Handlers (API routes) in the App Router?Next.js#apiMiddle›
• How does the request lifecycle work in FastAPI?FastAPI#architectureMiddle›
• What are serializers in Django REST Framework?Django#apiMiddle›
• What are DRF viewsets and routers?Django#apiMiddle›
• How does the request lifecycle work in Django?Django#apiMiddle›
• What are API Resources?Laravel#apiMiddle›
• How does the request lifecycle work in Laravel?Laravel#apiMiddle›
• What is GraphQL and how does it differ from REST?GraphQL#apiJunior›
• What is a GraphQL schema? Explain scalar and object types.GraphQL#apiJunior›
• What are resolvers? Explain the resolver chain and its arguments.GraphQL#apiJunior›
• Queries vs mutations vs subscriptions in GraphQL?GraphQL#apiJunior›
• What is the N+1 problem in GraphQL and how does DataLoader fix it?GraphQL#performanceMiddle›
• How does error handling work in GraphQL?GraphQL#apiMiddle›
• How do you paginate in GraphQL: offset vs cursor?GraphQL#apiMiddle›
• How do you cache a GraphQL API?GraphQL#cachingMiddle›
• What are best practices for GraphQL schema design?GraphQL#apiMiddle›
• How do you secure a GraphQL API against abusive queries?GraphQL#securitySenior›
• How does GraphQL federation work for microservices?GraphQL#apiSenior›
• When would you choose GraphQL over REST, and when not?GraphQL#apiSenior›
• How do you build a REST API with @RestController in Spring Boot?Spring Boot#springJunior›
• How does the request lifecycle work in Spring Boot?Spring Boot#apiMiddle›
• What is REST and what are its main constraints?REST API Design#apiJunior›
• How do HTTP methods map to CRUD, and what do safe and idempotent mean?REST API Design#apiJunior›
• How should you name and structure resource URIs in a REST API?REST API Design#apiJunior›
• How do you choose the correct HTTP status code for a response?REST API Design#apiJunior›
• What are the main API versioning strategies, and how do you deprecate a version?REST API Design#apiMiddle›
• How do you design pagination, filtering, and sorting for a collection endpoint?REST API Design#performanceMiddle›
• What is idempotency, and how do idempotency keys make retries safe?REST API Design#apiMiddle›
• How do you design consistent error responses and report validation errors?REST API Design#apiMiddle›
• How do you secure a REST API (authentication, authorization, transport)?REST API Design#apiMiddle›
• REST vs GraphQL vs gRPC — when would you choose each?REST API Design#apiSenior›
• What is HATEOAS and the Richardson Maturity Model?REST API Design#apiSenior›
• How do rate limiting and HTTP caching work in a REST API?REST API Design#apiSenior›