How to convert bytes to json in python

Question

I'm trying to convert bytes data into JSON data. I got errors in converting data.

a = b'orderId=570d3e38-d6486056e&orderAmount=10.00&referenceId=34344&txStatus=SUCCESS&txMsg=Transaction+Successful&txTime=2021-06-26+12%3A03%3A12&signature=njtH5Dzmg6RJ1KB'

I used this to convert

json.loads(a.decode('utf-8'))

and I want to get a response like

orderAmount = 10.00
orderId = 570d3e38-d6486056e
txStatus = SUCCESS

It looks like you just want to convert a query string to a dictionary? Where did you get that? Normally a query string passed to Django would be accessible as a QueryDict which can be accessed by request.GET — Abdul Aziz Barkat
– Abdul Aziz Barkat, Commented Jun 26, 2021 at 7:01

willeM_ Van Onsem · Accepted Answer · 2021-06-26 06:59:12Z

What you here see is a query string [wiki], you can read the querystring with:

from django.http import QueryDict

a = b'orderId=570d3e38-d6486056e&orderAmount=10.00&referenceId=34344&txStatus=SUCCESS&txMsg=Transaction+Successful&txTime=2021-06-26+12%3A03%3A12&signature=njtH5Dzmg6RJ1KB'

b = QueryDict(a)

with the given sample data, we have a QueryDict [Django-doc] that looks like:

>>> b
<QueryDict: {'orderId': ['570d3e38-d6486056e'], 'orderAmount': ['10.00'], 'referenceId': ['34344'], 'txStatus': ['SUCCESS'], 'txMsg': ['Transaction Successful'], 'txTime': ['2021-06-26 12:03:12'], 'signature': ['njtH5Dzmg6RJ1KB']}>

If you subscript this, then you always get the last item, so:

>>> b['orderId']
'570d3e38-d6486056e'
>>> b['orderAmount']
'10.00'
>>> b['orderId']
'570d3e38-d6486056e'
>>> b['txStatus']
'SUCCESS'

If you work with a view, you can also find this querydict of the URL with:

def my_view(request):
    b = request.GET
    # …

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