handle '&' in url parameter DJANGO

Question

I am creating an api in django in which I have a parameter (state_name) and the value of state_name can include '&' in its value which is causing certain problems ?

For example if my url is like

http://localhost:8080/api?state_name=jammu&kashmir&value=2

so in the above example when i try to fetch the values from the url it takes the value of state_name only 'jammu' and treats kashmir as a parameter?

What can i do to resolve this issue in django ?

yes in my db its jammu&kasmir and to change that will be a big change? — Gaurav
– Gaurav, Commented Nov 1, 2018 at 11:49
This is actually more about URL syntax than about django. I would explain, but the answers below explain even better than I would have been able to. — Haroldo_OK
– Haroldo_OK, Commented Nov 1, 2018 at 11:59

Daniel Roseman · Accepted Answer · 2018-11-01 11:50:40Z

6

You need to escape the & for use in http query parameters.

http://localhost:8080/api?state_name=jammu%26kashmir&value=2

If you're posting this from another Python script, you can use the urllib.parse.quote function to do it for you:

from urllib import parse
parse.quote("jammu&kashmir") # jammu%26kashmir

answered Nov 1, 2018 at 11:50

Daniel Roseman

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willeM_ Van Onsem · Accepted Answer · 2018-11-01 11:52:48Z

I am creating an api in django in which I have a parameter (state_name) and the value of state_name can include '&' in its value which is causing certain problems?

This is nonsensical. In a querystring, two parameters are separated by an ampersand (&). For example:

foo=bar&qux=3

If you want the content to contain an ampersand, you need to encode it, like:

?state_name=jammu%26kashmir&value=2

Here %26 is the encoding of the ampersand, and then the querystring has two parameters: state_name and value. These are then parsed like:

>>> from django.http import QueryDict
>>> QueryDict('state_name=jammu%26kashmir&value=2')
<QueryDict: {'state_name': ['jammu&kashmir'], 'value': ['2']}>

You can use a QueryDict to construct such query, for example:

>>> qd = QueryDict(mutable=True)
>>> qd['state_name'] = 'jammu&kashmir'
>>> qd['value'] = '2'
>>> qd.urlencode()
'state_name=jammu%26kashmir&value=2'

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