MultiValueDictKeyError at /login/ "u'username'"

Question

I am trying to build a web api for a login page. I keep getting this error. Although i have seen similar and related issues online, the solutions have been of help to me. What am i not doing right?

error

MultiValueDictKeyError at /login/
"u'username'"

login

@csrf_exempt
    def my_view(request):
         user = request.POST['username']
         passcode = request.POST['password']
         user = authenticate(request, username=user, password = passcode)
         if user is not None:
             login(request, user)
             return HttpResponse("User logged in")

         else:
             return HttpResponse("User not found")

updated login

@csrf_exempt
def my_view(request):
     if request.method == 'POST':
        user = request.POST['username']
        passcode = request.POST['password']
        user = authenticate(request, username=user, password = passcode)
        if user is not None:
            login(request, user)
            return HttpResponse("User logged in")

        else:
            return HttpResponse("User not found")

Which doc? It means that you don't have an argument named `username` in the post body. I would suggest you to check your postman configuration. — Selcuk, May 25 '17 at 03:00
Hope [this](https://stackoverflow.com/questions/5895588/django-multivaluedictkeyerror-error-how-do-i-deal-with-it) will help you — Mohammed Yasin, May 25 '17 at 03:40
@MohammedYasin How exactly would that help resolving the OP's problem? — Selcuk, May 25 '17 at 03:48
@Amateur I would triple check. And post full error message with traceback. — Selcuk, May 25 '17 at 03:48

zaidfazil · Answer 1 · 2017-05-25T04:48:37.043

Remove the request parameter from authenticate function,

user = authenticate (username=username, password=passcode)

Edit your view,

@csrf_exempt
def my_view(request):
     user = request.POST.get('username')
     password = request.POST.get('password')
     user = authenticate(username=username, password=password)
     if user is not None:
         login(request, user)
         return HttpResponse("User logged in")
     else:
         return HttpResponse("User not found")

score 0 · Answer 2 · edited Jul 18 '21 at 14:25

0

I just use the request.POST.get('your field_name here')

for example use username = request.POST.get('username') to pick your username

edited Jul 18 '21 at 14:25

Murat Demir

716
7
26

answered Jul 18 '21 at 08:44

barna

171
7

MultiValueDictKeyError at /login/ "u'username'"

2 Answers2