drf-permission-authentication.md

custom permission(object level)

from rest_framework import permissions


class IsOwnerOrReadOnly(permissions.BasePermission):
    """
    Custom permission to only allow owners of an object to edit it.
    """

    def has_object_permission(self, request, view, obj):
        # Read permissions are allowed to any request,
        # so we'll always allow GET, HEAD or OPTIONS requests.
        if request.method in permissions.SAFE_METHODS:
            return True

        # Write permissions are only allowed to the owner of the snippet.
        return obj.owner == request.user

class CafeListView(viewsets.ModelViewSet):
	permission_classes = [permissions.IsAuthenticatedOrReadOnly,
                      IsOwnerOrReadOnly]

같은 class 안에 메서드 별로 다른 권한 적용

permissions.py

from rest_framework import permissions

class ReadOnlyPermission(permissions.BasePermission):
    def has_permission(self, request, view):
        return request.method in permissions.SAFE_METHODS

class CreatePermission(permissions.BasePermission):
    def has_permission(self, request, view):
        return request.method == 'POST'

class DeletePermission(permissions.BasePermission):
    def has_permission(self, request, view):
        return request.method == 'DELETE'

views.py

from rest_framework import viewsets
from .models import YourModel
from .permissions import ReadOnlyPermission, CreatePermission, DeletePermission

class YourModelViewSet(viewsets.ModelViewSet):
    queryset = YourModel.objects.all()
    serializer_class = YourModelSerializer

    def get_permissions(self):
        if self.action == 'list':
            permission_classes = [ReadOnlyPermission]
        elif self.action == 'create':
            permission_classes = [CreatePermission]
        elif self.action == 'destroy':
            permission_classes = [DeletePermission]
        else:
            permission_classes = [permissions.IsAuthenticated]  # 기본 퍼미션

        return [permission() for permission in permission_classes]