how to customize simplejwt error response message in django restframework
# 1. Import necessary modules and classes
from rest_framework_simplejwt.views import TokenError, TokenViewBase
from rest_framework_simplejwt.tokens import Token
from rest_framework.response import Response
# 2. Create a custom exception class for your error
class CustomTokenError(TokenError):
def __init__(self, detail=None):
self.detail = detail or "Custom error message."
# 3. Create a custom view class that inherits from TokenViewBase
class CustomTokenView(TokenViewBase):
def get_response(self, serializer):
# Check if there are any errors in the serializer
if serializer.errors:
# Customize the error message
error_message = "Custom error message."
# Create a custom exception instance with the error message
custom_error = CustomTokenError(detail=error_message)
# Raise the custom exception
raise custom_error
# Call the parent class method to get the default response
response = super().get_response(serializer)
# Customize the response data if needed
# For example, you can modify the 'access' and 'refresh' token keys
response.data['my_custom_access'] = response.data.pop('access')
response.data['my_custom_refresh'] = response.data.pop('refresh')
return response
# 4. Update your URL configuration to use the custom view
from django.urls import path
from rest_framework_simplejwt.views import TokenObtainPairView, TokenRefreshView
urlpatterns = [
path('token/', CustomTokenView.as_view(), name='token_obtain_pair'),
path('token/refresh/', TokenRefreshView.as_view(), name='token_refresh'),
]
In this example, a custom exception class (CustomTokenError
) is created to handle the custom error message. The CustomTokenView
class inherits from TokenViewBase
, and the get_response
method is overridden to customize the error message and modify the response data if needed. Finally, the URL configuration is updated to use the custom view (CustomTokenView
) instead of the default TokenObtainPairView
.