PostFile Method
Sends a file to the server using a POST request.
Syntax
restclient.postFile(url, filename, [callback])
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:
function(err){ }
'err' is the error that occurred. If there was no error, then 'err' is 'null'.
'err' has 2 properties which hold detailed information:
err.code err.message
Remarks
POST is used to send data to the remote HTTP endpoint/script. The content to send will be taken from Filename.
To post a web form's data (including file attachments to the form) use PostWebForm method.
Note that any parameters you intend to pass to this method should be properly encoded before this method is called.