interagent/http-api-design — pull request #55 by schatekar (2014-12-05 17:06:05+00:00)
Title: Added use of HTTP 400 Bad Request for failed validation on request body content

I have been using `400 Bad Request` status code to indicate validation failures on the incoming `POST`/`PUT` requests. I think this works quite well and needs a mention. Happy to elaborate with examples if needed.