Sends a GET request to the server.
GET is one of the most widely used HTTP requests. The server responds with the content of the resource specified in Url.
If the request is successful, the received content will be available in OutputBytes and OutputString properties. Otherwise an exception will be thrown, and the error details published in StatusCode and ReasonPhrase properties.
Note that any parameters you intend to pass to this method should be properly encoded before this method is called.