400 status code: HTTP specification defines these standard status

HTTP specification defines these standard status codes divided into five categories that can be used to convey the results of a client’s request. Learn what a 400 error means in REST API and how to handle it. See examples of invalid JSON, XML, headers, and other scenarios that trigger a 400 response. The HTTP 400 Bad Request client error response status code indicates that the server would not process the request due to something the server considered to be a client error. Don't know what a 400 status code means? View our HTTP Status Code glossary to review the details of this bad request code!