Understand 4xx status codes
Easy30 pts~12 min
- 4xx semantics
- Error envelope
Practice app · Acme REST API
A live REST + GraphQL API with auth, validation, pagination, rate limiting and an interactive request console.
Your starter code already declares BASE_URL — call the API relative to it.
Objective
Trigger and assert three different client errors: 400, 401 and 404, each with its documented error code.
Your task
- 1GET BASE_URL + "/users/9999" → assert 404 and error.code "USER_NOT_FOUND".
- 2POST BASE_URL + "/users" with {} → assert 400 and error.code "VALIDATION_ERROR".
- 3GET BASE_URL + "/auth/me" without a token → assert 401.
Acceptance criteria
- A 404 from /users/{id}
- A 400 from POST /users
- A 401 from /auth/me
- At least 3 assertions pass
Fixtures
- apiKey
- tqa_live_key_123
- basicUser
- admin
- basicPassword
- secret
- username
- qa@target.dev
- password
- Test@123
API testing · API Testing · HTTP fundamentals