HTTP status Code

2xx Success
200 normal; The request is complete.
201 Normal; Immediately after the POST command.
202 normal; Accepted for processing, but processing is not yet complete.
203 normal; Part of the information-the returned information is only part of it.
204 normal; No response-the request has been received, but there is no information to echo back.
3xx Redirection
301 Moved-The requested data has a new location and the change is permanent.
302 found-The requested data temporarily has a different URI.
303 See other-the response to the request can be found under another URI, and the response should be retrieved using the GET method.
304 unmodified-The document was not modified as expected.
305 using a proxy-the requested resource must be accessed through the proxy provided in the Location field.
306 unused-no longer in use; Keep this code for future use.
errors that occur in the 4XX client
400 Error request-There is a syntax problem in the request, or the request cannot be satisfied.
401 Unauthorized-The client is not authorized to access the data.
402 Payment required-Indicates that the billing system is valid.
403 Forbidden-access is not required even with authorization.
404 Not Found-the server cannot find the given resource; The document does not exist.
407 Proxy authentication Request-The client must first use the proxy to authenticate itself.
415 media type is not supported-the server denies the service request because the format of the requested entity is not supported.
errors that occur in the 5XX server
500 INTERNAL Error-the server could not complete the request because of an unexpected situation.
501 not executed-the server does not support the requested tool.
502 Error Gateway-server received an invalid response from the upstream server.
503 Unable to get service-the server cannot process the request due to temporary overload or maintenance.

HTTP status Code