Common HTTP/1.1 Methods

• GET -  Gets an object, such as a webpage, from the server. A GET request for a specific URL (Uniform Resource Locator) retrieves the resource.
• POST - Sends data to the web server for processing. This is typically what happens when users enter data on a form and submit that data as part of their request, but it has other meanings when used outside the bounds of HTML forms.
• HEAD - Retrieves the meta information for an object without downloading the page itself. HEAD is typically used to verify that a resource hasn’t changed since the browser cached it.
• OPTIONS - Used by client applications to request a list of all supported commands. You can use OPTIONS to check to see if a server allows a particular command
• PUT -Allows a client to directly create a resource at the indicated URL on the server. If the user has permission, the server takes the body of the request, creates the file specified in the URL, and copies the received data to the newly created file.
• DELETE - Deletes a resource on the web server if the user has permission.
• TRACE - Used for testing or diagnostics; allows the client to see what is being received at the other end of the request chain
• CONNECT - Reserved for use with a proxy that can dynamically switch to being a tunnel, such as with the SSL protocol.
• DEBUG  - Starts ASP.NET debugging. This command informs Visual Studio of the process to which the debugger will attach

HTTP header status codes

The status code available in the http header are usefull. Following are some of the common status codes

Status Code Group	Description
1xx Informational	The request was received, and the server is continuing to process.
2xx Success	The action was successfully received, understood, and accepted.
3xx Redirect Command	The client must access a different resource instead.
4xx Client Error	The request has a syntax error or the server does not know how to fulfill the request.
5xx Server Error	he server failed to fulfill a request that appears to be valid.

Status Code	Description
100	Continue
200	OK
201	Created
300	Multiple Choices
301	Moved Permanently
302	Found
400	Bad Request
401	Unauthorized
403	Forbidden
404	Not Found
407	Proxy Authentication Required
408	Request Time-out
413	Request Entity Too Large
500	Internal Server Error
501	Not Implemented