I build software and reporting that replace manual work.

$ curl -X POST localhost:8000/tasks \
    -H "Content-Type: application/json" \
    -d '{"title": "Write endpoint tests", "user_id": 1}'
HTTP/1.1 201 Created
{
  "id": 12,
  "title": "Write endpoint tests",
  "user_id": 1,
  "completed": false
}

$ curl localhost:8000/tasks/999
HTTP/1.1 404 Not Found
{ "detail": "Task 999 not found" }

$ curl -X POST localhost:8000/tasks -d '{"user_id": 1}'
HTTP/1.1 422 Unprocessable Entity
{ "detail": "title: field required" }