Part 6: User Dashboard & API View

INSTALLED_APPS += ['rest_framework']

from rest_framework import serializers
from django.contrib.auth.models import User
from accounts.models import Profile

class ProfileSerializer(serializers.ModelSerializer):
    class Meta:
        model = Profile
        fields = ['sponsor', 'is_entrepreneur']

from rest_framework.decorators import api_view, permission_classes
from rest_framework.permissions import IsAuthenticated
from rest_framework.response import Response

from django.db.models import Sum
from investment.models import UserInvestment, ROITransaction
from referral.models import ReferralIncome
from bonus.models import WeeklyBonus, RankAchievement
from withdrawal.models import WithdrawRequest

@api_view(['GET'])
@permission_classes([IsAuthenticated])
def user_dashboard(request):
    user = request.user

    total_investment = UserInvestment.objects.filter(user=user).aggregate(
        total=Sum('amount'))['total'] or 0

    total_roi = ROITransaction.objects.filter(user=user).aggregate(
        total=Sum('amount'))['total'] or 0

    total_referral_income = ReferralIncome.objects.filter(referrer=user).aggregate(
        total=Sum('amount'))['total'] or 0

    total_weekly_bonus = WeeklyBonus.objects.filter(user=user).aggregate(
        total=Sum('bonus_amount'))['total'] or 0

    total_withdrawn = WithdrawRequest.objects.filter(
        user=user, status='approved').aggregate(total=Sum('net_amount'))['total'] or 0

    latest_rank = RankAchievement.objects.filter(user=user).order_by('-achieved_at').first()
    rank_name = latest_rank.rank_name if latest_rank else "Unranked"

    return Response({
        "username": user.username,
        "is_entrepreneur": getattr(user.profile, 'is_entrepreneur', False),
        "total_investment": total_investment,
        "total_roi": total_roi,
        "total_referral_income": total_referral_income,
        "total_weekly_bonus": total_weekly_bonus,
        "total_withdrawn": total_withdrawn,
        "net_balance": total_roi + total_referral_income + total_weekly_bonus - total_withdrawn,
        "current_rank": rank_name,
    })

from django.urls import path
from .views import user_dashboard

urlpatterns = [
    path('dashboard/', user_dashboard, name='user-dashboard'),
]

from django.urls import path, include

urlpatterns = [
    path('admin/', admin.site.urls),
    path('api/', include('dashboard.urls')),
]

{
  "username": "alice",
  "is_entrepreneur": true,
  "total_investment": 1000.0,
  "total_roi": 60.0,
  "total_referral_income": 30.0,
  "total_weekly_bonus": 10.0,
  "total_withdrawn": 20.0,
  "net_balance": 80.0,
  "current_rank": "INFINITY 2"
}