API Design & Service Communication

Design REST, gRPC, GraphQL and real-time APIs that survive scale, retries and version drift

Learn to design clean REST resources, choose between offset and cursor pagination, make payment endpoints idempotent, pick REST vs gRPC vs GraphQL, choose polling vs SSE vs WebSockets, and evolve schemas without breaking clients.

Practice questions (6)

• Paginating a 200M-Row Activity Feed

  Intermediate · Free
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• Making POST /payments Safe to Retry

  Intermediate
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• Choosing a Real-Time Transport

  Intermediate
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• REST, gRPC or GraphQL for a New Platform

  Intermediate
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• Building a Robust Webhook Consumer

  Intermediate
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Quizzes (1)