GET : This requests a resource at the request URL. It should not contain a request body as it will be discarded. It can be cached locally or on the server.
POST : This submits information to the service for processing; it should typically return the modified or new resource.
PUT : At the request URL, this updates the resource.
DELETE : At the request URL, this removes the resource.
OPTIONS : This indicates which techniques are supported.
HEAD : This returns meta-information about the request URL.
