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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 production-grade 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 production-grade 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