Django returns an array instead of a dictionary (rest-api-framework

Question

I send a post request with data (using requests.post('url', data=data) ):

data = {
       'token':1234,
       'data':{
             'name':'test',
             'etc':True,
              }
       }

When processing reguest.POST in django i get:

<QueryDict: {'token':[1234], 'data':['name', 'etc']} >

What could be the reason?

It always represents this as a list, since the same key can occur multiple times. — willeM_ Van Onsem
– willeM_ Van Onsem, Commented Feb 22, 2021 at 11:43
these are not send prooperly, since you can not send a dictionary as value, you will need to (JSON) serialize this, and deserialize this at the receiving end. — willeM_ Van Onsem
– willeM_ Van Onsem, Commented Feb 22, 2021 at 11:47

willeM_ Van Onsem · Accepted Answer · 2021-02-22 11:47:19Z

1

What could be the reason?

This is simply how a QuerDict is represented. This is because in a querystring and in a HTTP header, the same key can occur multiple times. It thus maps a key to the value.

If you subscript the item [Django-doc], like request.POST['token'] it will always return the last element, if you use .getlist(…) [Django-doc], it will return a list of all items:

request.POST['token']          # 1234
request.POST.getlist('token')  # ['1234']

Furthermore, as you found out, you can not pass a dictionary as value. If you want to send this, you need to serialize it, for example as a string:

import json

data = {
    'token':1234,
    'data': json.dumps({
        'name':'test',
        'etc':True,
    })
}

then at the receiving end, you can deserialize these:

import json

json.loads(request.POST['data'])

answered Feb 22, 2021 at 11:47

willeM_ Van Onsem

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