Hypertext Transfer Protocol

Hypertext Transfer Protocol

• Which request methods are used at HTTP? Which method do you use for which purpose?

GET: to connect to a HTTP- server.

POST: to update my data at the server

• Do GET requests modify data on the server?

It’s not modify the server.

• When is a GET request transmitted to a server?

When you open a URL you send a GET request

• What is the difference between GET and POST requests?

Post: You add something.
Post you can change the state of the server.
The data can also be updated 

Get: You send a request.

• When you log in to a server, which method is usually used?

You use a POST request, because your online state changes for the server!

• Describe the other request methods in brief.

HEAD: Works like GET, but doesn't request the body.

PUT: Requests to put a resource on an URL.

DELETE: Deletes a resource on the server.

TRACE: Requests a response to know if something has changed on the server.

OPTIONS: Requests a response to know which requests types are supported with this URL.

CONNECT: Builds up a TCP/IP Tunnel

PATCH: Modifies a resources partly.

More about HTTP: http://en.wikipedia.org/wiki/Hypertext_Transfer_Protocol