HTTP Status Codes

OK

Request succeeded.

Created

Resource created successfully.

No Content

Success with no response body.

Moved Permanently

Resource moved to a new URL.

Found

Temporary redirect.

Not Modified

Cached version is still valid.

Bad Request

Invalid syntax or parameters.

Unauthorized

Authentication required.

Forbidden

Authenticated but not allowed.

Not Found

Resource does not exist.

Method Not Allowed

HTTP method not supported.

Request Timeout

Server timed out waiting.

Conflict

Request conflicts with current state.

Unprocessable Entity

Validation failed.

Too Many Requests

Rate limit exceeded.

Internal Server Error

Unexpected server error.

Bad Gateway

Invalid upstream response.

Service Unavailable

Server temporarily overloaded.

Gateway Timeout

Upstream server timed out.