Write an API endpoint with validation

Production-ready endpoint with input checks and errors.

You'll attach

Text only

Works with

CursorClaude CodeCodexClaudeChatGPTGemini

How to use it

1. Open Cursor or Claude Code in your terminal (or another AI listed here).
2. Fill in the highlighted blanks ([FRAMEWORK], [METHOD AND PATH], [WHAT IT DOES]…) below, or edit them after pasting.
3. Copy the prompt, paste it into the chat and send.

Write a [FRAMEWORK] API endpoint: [METHOD AND PATH] that [WHAT IT DOES].
Input: [FIELDS AND RULES].

Include: input validation with clear 400 errors, auth check, correct status codes, idempotency if it creates something, structured logging, and tests for success and failure cases. Return the code and an example curl request.