Better lookup fields!

[mojixcoder]

Hey, I want my lookup_field for getting user to be @username not username.
How can I implement this in ModelViewSet?
I want my API endpoint to be like this for example: ..../api/v1/accounts/@mojixcoder/

[mojixcoder]

i just solved it by creating a custom router.
in routers.py:

from rest_framework.routers import Route, SimpleRouter


class UserRouter(SimpleRouter):
    """
    A router for user to support @username lookup.
    """
    routes = [
        Route(
            url=r'^{prefix}{trailing_slash}$',
            mapping={
                'get': 'list',
                'post': 'create',
            },
            name='{basename}-list',
            detail=False,
            initkwargs={'suffix': 'List'}
        ),
        Route(
            url=r'^{prefix}/@{lookup}{trailing_slash}$',
            mapping={
                'get': 'retrieve',
                'put': 'update',
                'patch': 'partial_update',
                'delete': 'destroy'
            },
            name='{basename}-detail',
            detail=True,
            initkwargs={'suffix': 'Detail'}
        ),
    ]

then in urls.py:

from .routers import UserRouter
from .apis import UserViewSet
from django.urls import path, include


router = UserRouter()

router.register("", UserViewSet, basename="user")

urlpatterns = [
    path("/", include(router.urls)),    
]

now you can get user with @username lookup for example in my case:
http://127.0.0.1:8000/api/v1/accounts/@mojixcoder/