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intermediate
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API Track

Comprehensive API quality path from REST contracts and GraphQL safety to security and backward compatibility.

~42 min5 prompts

Learning Objectives

  • Protect API contracts during evolution
  • Validate reliability and async behavior
  • Enforce API-level security and compatibility

Prerequisites

  • REST basics
  • HTTP status code familiarity

Prompts in this Collection

  1. 1

    REST API Tests with Supertest & Jest

    Generate a maintainable API test suite using Supertest and Jest covering happy paths, validation errors, auth, RBAC, and DB isolation with Zod response shape validation.

    Start with practical API behavior testing patterns.

    intermediate
    jest
  2. 2

    Generate API Contract Tests from OpenAPI Spec

    Create a reviewable API contract test suite that validates response schemas, status codes, headers, and error payloads against an OpenAPI 3.0 spec.

    Lock implementation to explicit contract schemas.

    advanced
    playwright
  3. 3

    GraphQL API Test Suite

    Generate typed GraphQL tests covering queries, mutations, pagination, error handling, auth, depth limits, and N+1 detection — using graphql-request with Jest and codegen types.

    Cover GraphQL-specific risk and correctness patterns.

    advanced
    jest
  4. 4

    OWASP API Security Top 10 Test Suite

    Generate security tests covering OWASP API Security Top 10: broken auth, excessive data exposure, injection, and more.

    Harden API posture using OWASP-aligned checks.

    advanced
    jest
  5. 5

    Postman Versioned API Backward Compatibility

    Validate old clients remain supported during API version evolution.

    Guard old clients during version transitions.

    intermediate
    postman