Parse.com Push Object/Message from Excel VBA - vba

Question

I am trying to write a VBA script to push messages from Excel to my decives using the Parse.com framework. So far I succeeded in sending push data messages from the Parse.com website to multiple devices so that part should be good.
Problem is getting VBA to send a Push or even data to Parse.com in general.
At the moment I'm just trying to get the connection to work and push some data in to my TestObject Class. I am using the following code and authentication seems to go how it's supposed to be now! The PUT object gives an error: invalid json
Sub Parse()
TargetURL = "https://api.parse.com/1/classes/TestObject"
Set HTTPReq = CreateObject("WinHttp.WinHttpRequest.5.1") '
HTTPReq.Open "POST", TargetURL, False
HTTPReq.setRequestHeader "X-Parse-Application-Id", "xxxxxx"
HTTPReq.setRequestHeader "X-Parse-REST-API-Key", "xxxxxx"
HTTPReq.setRequestHeader "Content-Type", "application/json"
HTTPReq.send ("{foo:bar}")
MsgBox (HTTPReq.ResponseText)
End Sub
New Error:
Invalid Json

Answer 1

Have you set up authentication? From the Parse.com REST API reference:
Request Format
For POST and PUT requests, the request body must be JSON, with the Content-Type header set to application/json.
Authentication is done via HTTP headers. The X-Parse-Application-Id header identifies which application you are accessing, and the X-Parse-REST-API-Key header authenticates the endpoint. In the examples that follow, the keys for your app are included in the command. You can use the drop-down to construct example code for other apps.
You may also authenticate your REST API requests using basic HTTP authentication. For example, to retrieve an object you could set the URL using your Parse credentials in the following format:
https://myAppID:javascript-key=myJavaScriptKey#api.parse.com/1/classes/GameScore/Ed1nuqPvcm
For Javascript usage, the Parse Cloud supports cross-origin resource sharing, so that you can use these headers in conjunction with XMLHttpRequest.

Answer 2

HTTPReq.send ("{""foo"":""bar""}")
Posting will be successful.