text: from __future__ import absolute_import
  
  from django.utils import timezone
  from rest_framework.response import Response
  
  from sentry.api.base import Endpoint
  from sentry.api.permissions import assert_perm
  from sentry.db.models import create_or_update
  from sentry.constants import STATUS_RESOLVED
  from sentry.models import Group, Activity
  
  
  class GroupResolveEndpoint(Endpoint):
      def post(self, request, group_id):
          group = Group.objects.get(
              id=group_id,
          )
  
          assert_perm(group, request.user, request.auth)
  
          now = timezone.now()
  
          group.resolved_at = now
  
          happened = Group.objects.filter(
              id=group.id,
          ).exclude(status=STATUS_RESOLVED).update(
              status=STATUS_RESOLVED,
              resolved_at=now,
          )
  
          if happened:
              create_or_update(
                  Activity,
                  project=group.project,
                  group=group,
                  type=Activity.SET_RESOLVED,
                  user=request.user,
              )
  
          return Response()
  