add-api-endpoint

name	add-api-endpoint
description	Use when adding a new HTTP endpoint to BookTracker.Api — creating the route, handler, request/response DTOs, and wiring it into the Minimal API. Triggers on requests like "add an endpoint", "expose a new route", "create a GET/POST for ...".

Add an API endpoint

Procedure

1. Read references/endpoint-pattern.md and an existing endpoint to match the house style.
2. Define request/response DTOs in BookTracker.Core/Dtos.
3. Add the handler and map the route in BookTracker.Api/Endpoints.
4. Build, then add a test mirroring BookTracker.Tests.

Gotchas

• Never return an EF entity — map to a DTO.
• Validate inputs before touching the data layer.
• Keep the handler thin; put logic in a Core service.