HTTP 422 status code

422 Unprocessable Entity

The request format is correct, but it cannot respond due to semantic errors.

422 shows that the request format is incorrect, but a semantic error occurs, so that the server cannot respond. It can be understood that the server can understand the requested resource type content-type, otherwise it should return 415 (Unsupported Media Type), and it can also understand the request entity content, otherwise it should return 400 (Bad Request). 【HTTP 400 status code】