[FIXED] Django "Method \"POST\" not allowed."

Issue

When I test my endpoints using Postman I get the message Method \"POST\" not allowed when I try to create a new truck using my createTruck function. I am able to delete, update, and get trucks from my database. Also I am able to create a new truck in Django Admin.

views.py

@api_view(['POST'])
def createTruck(request):
    data = request.data
    user = request.user

    truck = Truck.objects.create(
        user=user,
        image=data['image'],
        make=data['make'],
        prototype=data['prototyp'],
        year=data['year'],
        serviceInterval=data['serviceInterval'],
        nextService=data['nextService'],
        seats=data['seats'],
        bedLength=data['bedLength'],
        color=data['color'],
        vin=data['vin'],
        currentMileage=data['currentMileage']
    )
    print("request", request)

    serializer = TruckSerializer(truck, many=False)
    return Response(serializer.data)


@api_view(['DELETE'])
def deleteTruck(request, pk):
    truck = Truck.objects.get(id=pk)
    truck.delete()
    return Response('Truck Deleted!')

urls.py

urlpatterns = [
    path('trucks/', views.getTrucks, name="trucks"),
    path('trucks/<str:pk>/', views.getTruck, name="truck"),
    path('trucks/create/', views.createTruck, name="create-truck"),
    path('trucks/delete/<str:pk>/', views.deleteTruck, name="delete-truck"),
    path('trucks/update/<str:pk>/', views.updateTruck, name="update-truck"),
]

I might be passing in user wrong, but I'm not sure.

The Postman URL is

http://127.0.0.1:8000/api/trucks/create/

The body is

{
        "user": 1,
        "image": "/images/2016-tundra-600x400.jpeg",
        "make": "Toyota",
        "prototype": "Tundra",
        "year": 2016,
        "serviceInterval": 720,
        "nextService": 600,
        "seats": 2,
        "bedLength": "5.50",
        "color": "blak",
        "vin": "0989098ad2321",
        "currentMileage": 20000
    }

Solution

Just change your URL pattern. It is a URL pattern conflict, that create-truck-pattern tries to get the truck with pk:create. The standard solution is to change the type of pk from str to int. But the other solution is to change URL priority in your patterns and move create-truck on step upper.

Recommended solution:

urlpatterns = [
    path('trucks/', views.getTrucks, name="trucks"),
    path('trucks/<int:pk>/', views.getTruck, name="truck"),
    path('trucks/create/', views.createTruck, name="create-truck"),
    path('trucks/delete/<str:pk>/', views.deleteTruck, name="delete-truck"),
    path('trucks/update/<str:pk>/', views.updateTruck, name="update-truck"),
]

other solution:

urlpatterns = [
    path('trucks/', views.getTrucks, name="trucks"),
    path('trucks/create/', views.createTruck, name="create-truck"),
    path('trucks/<str:pk>/', views.getTruck, name="truck"),
    path('trucks/delete/<str:pk>/', views.deleteTruck, name="delete-truck"),
    path('trucks/update/<str:pk>/', views.updateTruck, name="update-truck"),
]

Answered By - mrash