HTTP operations

The Guidewire REST framework provides the following set of allowable HTTP operations on PolicyCenter resource, which are:

GET	Retrieves information about a resource
PATCH	Updates or modifies information about a resource
POST	Creates a resource
PUT	Updates or fully replaces a resource
DELETE	Deletes a resource

In addition to the listed standard HTTP operations, the HTTP protocol defines the following operations as well.

Method	Description
OPTIONS	Retrieves information about a given URL. The REST framework automatically provides a default implementation of the OPTIONS method that it does not authenticate. The default method returns a 200 status code and a single Allow header that contains the list of HTTP methods defined for the specified path. For example, if you define GET and PATCH for a given path, making an OPTIONS request to that path returns an Allow header value of "GET, HEAD, PATCH, OPTIONS".
HEAD	Returns the headers that would come back from a standard GET HTTP request. The REST API framework automatically implements the HEAD method for any path that defines a GET operation. The REST framework authenticates the HEAD method only if it authenticates the associated GET method as well. The default implementation of this method by the framework simply calls the GET HTTP method and then returns the response with an empty response body.