HTTP status codes
HTTP status codes are three-digit numbers returned by a web server in response to a client's request. These status codes indicate the success, failure, or other state of the request-response cycle. Here are some common HTTP status code categories and their meanings:
1xx Informational:
These status codes indicate that the server has received the request and is continuing with the process.
Example: 100 Continue, indicating that the server is still processing the request and the client should continue.
2xx Success:
These status codes indicate that the request was successfully received, understood, and accepted.
Example: 200 OK, indicating that the request was successful.
3xx Redirection:
These status codes indicate that further action needs to be taken by the client to fulfill the request.
Example: 302 Found, indicating that the requested resource has been temporarily moved to a different URL.
4xx Client Error:
These status codes indicate that there was a problem with the client's request.
Example: 404 Not Found, indicating that the requested resource could not be found on the server.
5xx Server Error:
These status codes indicate that there was a problem with the server while processing the request.
Example: 500 Internal Server Error, indicating that there was an unexpected condition preventing the server from fulfilling the request.
Here are a few more examples of commonly encountered HTTP status codes:
201 Created: Indicates that the request has been fulfilled and a new resource has been created.
401 Unauthorized: Indicates that the client must authenticate itself to get the requested response.
403 Forbidden: Indicates that the server understood the request but refuses to authorize it.
503 Service Unavailable: Indicates that the server is currently unable to handle the request due to temporary overload or maintenance.
HTTP status codes are an essential part of the HTTP protocol, providing information about the outcome of a client's request and helping to troubleshoot issues when they occur. They are often used by web developers to diagnose and fix problems with web applications and services.
