Reverse for ‘openapi-schema’ not found. ‘openapi-schema’ is not a valid view function or pattern name.

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The error message “reverse for ‘openapi-schema’ not found. ‘openapi-schema’ is not a valid view function or pattern name.” occurs when the Django framework is unable to find the URL pattern or view function named ‘openapi-schema’ when trying to generate a reverse URL.

To understand this error better, let’s break it down into smaller parts:

  • ‘reverse’ is a Django function used to generate URLs by providing the name of the view function or URL pattern.
  • ‘openapi-schema’ is the name of the view function or URL pattern that was requested to generate a reverse URL.
  • The error message states that ‘openapi-schema’ could not be found, meaning it is either misspelled or not defined.

Here’s an example to illustrate this error: 

      
        # urls.py - defining the URL patterns
        from django.urls import path
        from .views import openapi_schema_view

        urlpatterns = [
            path('api/openapi/', openapi_schema_view, name='openapi-schema'),
        ]

        # views.py - defining the view function
        from django.http import HttpResponse

        def openapi_schema_view(request):
            return HttpResponse("This is the OpenAPI schema")

In the above example, we have defined a URL pattern with the name ‘openapi-schema’ in the ‘urls.py’ file and linked it to the ‘openapi_schema_view’ view function. When trying to generate a reverse URL using the name ‘openapi-schema’, if it is misspelled or not defined, the mentioned error message will occur.

To fix this error, ensure that the name used for reverse URL generation is correctly defined in your URL patterns and corresponds to a valid view function or URL pattern.

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