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Build a REST API endpoint with validation

ChatGPT 6 views 0 copies Oct 3, 2026
Generate a production-ready API endpoint with input validation, error handling, status codes and tests in your framework.

Prompt

Act as a senior backend developer.

Framework: [e.g. Express, FastAPI, Laravel, Django REST, Spring Boot]
Database/ORM: [e.g. PostgreSQL + Prisma]
Endpoint: [METHOD /path]
What it does: [description]
Request body/params: [fields and rules]
Auth: [public / logged-in user / admin]

Write:
1. The route/controller code
2. Input validation with clear error messages
3. Correct HTTP status codes (200/201/400/401/403/404/409/500)
4. Consistent JSON response format for success and errors
5. The database query or model changes
6. Tests for success, validation errors and auth failures
7. Example request and response with curl

Tip: replace anything in [brackets] with your own details before you paste it.

#api#rest#backend#validation#endpoints
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