Is there a way to get the value of nested dict in Immutabledict sent via request of werkzeug(flask)?

Question

I asked question in past, but still facing the problem. address_dict = {'address': {'US': 'San Francisco', 'US': 'New York', 'UK': 'London'}}

When above parameters was sent via requests, how can I get values in address key using request.form on Flask?

import requests
url =  'http://example.com'
params = {"address": {"US": "San Francisco", "UK": "London", "CH": "Shanghai"}}
requests.post(url, data=params) 

Then I got this in context of flask.request.

ImmutableMultiDict([('address', u'US'), ('address', 'US'), ('address', 'UK')])

How can I get the value in each key of addresses?

Thanks.

Answer 1

You're sending complex nested data structure as HTML form, it won't work like you expect. Encode it as JSON:

import json
import requests

url = 'http://example.com/'
payload = {"address": {"US": "San Francisco", "UK": "London", "CH": "Shanghai"}}
data = json.dumps(payload)
headers = {'Content-Type': 'application/json'}
requests.post(url, data=data, headers=headers)

In you Flask app it would be accesible via request.json (already decoded).