I want to send a PUT request with the following data structure:

{ body : { version: integer, file_id: string }}

Here is the client code:

def check_id():id = request.form['id']res = logic.is_id_valid(id)file_uuid = request.form['file_id']url = 'http://localhost:8050/firmwares'r = requests.put(url = url, data = {'body' : {'version': id, 'file_id': str(file_uuid)}})

Here is the server code:

api.add_resource(resources.FirmwareNewVerUpload, '/firmwares')class FirmwareNewVerUpload(rest.Resource):def put(self):try:args = parser.parse_args()except:print traceback.format_exc()print 'data: ', str(args['body']), ' type: ', type(args['body'])return

The server prints:

data:  version  type:  <type 'unicode'>

And this result is not what I want. Instead of inner dictionary I got a string with name of one dictionary key. If I change 'version' to 'ver'

    r = requests.put(url = url, data = {'body' : {'ver': id, 'file_id': str(file_uuid)}})

server prints

data:  ver  type:  <type 'unicode'>

How to send a dictionary with inner dictionary?

Use json= instead of data= when doing requests.put and headers = {'content-type':'application/json'}:

 r = requests.put(url = url, json = {'body' : {'version': id, 'file_id': str(file_uuid)}}, headers = {'content-type':'application/json'})