Posts data to a resource using the WebDAV POST method.
webdav.postToResource(resourceURI, postData_Buffer, [callback])
The 'callback' parameter specifies a function which will be called when the operation completes (or an error is encountered). If the 'callback' parameter is not specified, then the method will block and will not return until the operation completes (or an error is encountered).
The callback for this method is defined as:
'err' is the error that occurred. If there was no error, then 'err' is 'null'.
'err' has 2 properties which hold detailed information:
Posts data to the resource ResourceURI using the WebDAV POST method. The posted data is taken from PostData. The server response text is received through the Transfer event, and the HTTP response headers through the Header event. If LocalFile is not empty the data (not the headers) is written there as well.