Upload Photo to ACS (Appcelerator Cloud Services) Angular Service ( POST file via $resource)

photo.coffee

class PhotoService
    constructor : ($resource, ACS_API_KEY, Session, $q)->
        @instance = $resource 'https://api.cloud.appcelerator.com/v1/photos/:methodName'
            ,
                    key: ACS_API_KEY
                    _session_id: ->
                        Session.sessionId
            ,
                create:
                    method: 'POST'
                    headers :
                        "Content-Type" : undefined
                    transformRequest: (data)->
                        formData = new FormData();
                        for key, value of data
                            formData.append key, value

                        formData
                    params:
                        methodName: 'create.json'
                count:
                    method: 'GET'
                    params:
                        methodName: 'count.json'
                query:
                    method: 'GET'
                    params:
                        methodName: 'query.json'
                        isArray: true
                show:
                    method: 'GET'
                    params:
                        methodName: 'show.json'
                        isArray: true
                update:
                    method: 'PUT'
                    params:
                        methodName: 'update.json'
                delete:
                    method: 'DELETE'
                    params:
                        methodName: 'delete.json'

    createPhoto : (photo, options) =>
        console.log "create Photo #{photo}"

        options or=
            "photo_sizes[preview]"      : "100x100#"
            "photo_sizes[afisha_small]" : "150x400"
            "photo_sizes[afisha_big]"   : "300x800"
            "photo_sync_sizes[]"        : "afisha_small"
            "photo_sync_sizes[]"        : "preview"
            "photo_sync_sizes[]"        : "afisha_small"
            "photo_sync_sizes[]"        : "preview"

        requestObject =
            photo: photo
            user_id: Session.userId

        for key, value of options
            requestObject[key] = value

        @instance.create(requestObject).$promise
        .then (response) ->
            console.log 'created Photo ' + JSON.stringify(response?.response?.photos?[0])
            response?.response?.photos?[0] or null
        .catch (error)->
            console.log "Create Photo ERROR : #{JSON.stringify error}"

angular.module('ngapp').service 'PhotoService', PhotoService

PhotoService.$inject = [
    '$resource'
    'ACS_API_KEY'
    'Session'
    '$q'
]