Check Json data is none in python

Question

this is my json may be thousands of record data we request in django rest framework.

{
 "a":1,
 "b":2,
 "c":3,
 .....
}

if request.data['a'] == '':
   return JsonResponse({'error':1})
elif request.data['b'] == '':
   return JsonResponse({'error':1})
elif .....
   .......
else:
   ......

I want to check data is not blank like above if... else. we can add if else condition but this is not possible to check all data from if else Please suggest me what is the best way to check this line of code in python.

Did you check any question like [this](https://stackoverflow.com/questions/3294889/iterating-over-dictionaries-using-for-loops)? — Sachin, Jun 26 '19 at 05:33
user [DRF-Serializer](https://www.django-rest-framework.org/api-guide/serializers/) and provide a [**`allow_null=False`**](https://www.django-rest-framework.org/api-guide/fields/#allow_null) — JPG, Jun 26 '19 at 06:00

score 2 · Answer 1 · answered Jun 26 '19 at 05:48

If you are using json module for parsing the json response text using json.loads, then you can directly access it like a dict as following.

import json
json_data = json.loads(json_text)

for mykey in json_data:
    if json_data[mykey] = "":
        return JsonResponse({'error':1})
    else:
        pass

score 1 · Answer 2 · answered Jun 26 '19 at 05:32

1

you can do a check using for loop

for i in your_dict.keys():
    if your_dict[i] == '':
       do something
    else:
       do other thing

answered Jun 26 '19 at 05:32

Exprator

26,992
6
47
59

score 1 · Accepted Answer · edited Jun 26 '19 at 11:24

1

You can use data.items() to get key and value AND then you can process according to your demands:-

import json
data = { "a":1, "b":2, "c":3  }
for key,value in data.items():  # Here you will get key and value.
    if value == '':
        return JsonResponse({'error':1})
    else:
        pass

edited Jun 26 '19 at 11:24

heemayl

39,294
7
70
76

answered Jun 26 '19 at 06:13

Rahul charan

765
7
15

score 0 · Answer 4 · answered Jun 26 '19 at 11:10

0

Here's a simple solution

data = {
    "a": 1,
    "b": 2,
    "c": "",
    "d": ""
}

for key in data:
    if bool(data[key]):
        pass
    else:
        return JsonResponse({"error":1})

answered Jun 26 '19 at 11:10

Maulik Patel

572
5
10

Check Json data is none in python

4 Answers4