This article will cover common Success, Client Error and Server Error status codes used for RESTful services. The below tables provide the different types of HTTP status codes with a description.
2xx Success
These status codes indicate that the client’s request was successfully received, understood and accepted.
| Code | Description |
|---|---|
| 200 | OK |
| 201 | Created |
| 202 | Accepted |
| 204 | No Content |
4xx Client Error
These status codes indicate that the client provided an error in the request.
| Code | Description |
|---|---|
| 400 | Bad Request |
| 401 | Unauthorized |
| 403 | Forbidden |
| 404 | Not Found |
| 405 | Method Not Allowed |
| 409 | Conflict |
| 410 | Gone |
5xx Server Error
These status codes indicate that the server is aware it has made an error or is incapable of performing the request.
| Code | Description |
|---|---|
| 500 | Internal Server Error |
| 501 | Not Implemented |
| 502 | Bad Gateway |
| 503 | Service Unavailable |
| 504 | Gateway Timeout |
Summary
Using HTTP status codes correctly in a RESTful service is useful and provides consistency across all API implementations.
Further information on HTTP status codes can be found at the following link: