I have managed to work with REST API\'s to fetch() data where the urls contain minimal parameters (and use GET).
fetch()
GET
How would one retrieve a c
Also note that fetch supports Jquery.ajax parameters, so you can easily set type = post in the call.
Messages.fetch({data: {api_key: 'secretkey'}, type: 'POST'});
For more parameters: http://api.jquery.com/jQuery.ajax/