The 4xx family of status codes is the one we’re investigating here as they relate to invalid or corrupt requests from the client. Specifically, we’ll take a closer look at the 400 Bad Request error: what this error means, what causes it as well as some specific steps to fix the issue. Encountering HTTP errors like 400, 403, 404, 500, 502, or 503 can be frustrating, but fear not! In this comprehensive tutorial, we’ll explain what these errors mean and provide step-by-step solutions to fix them. 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. 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.
