Add current-balance API

Author: WasinTh

account/views.py

@@ -1,3 +1,13 @@
-from django.shortcuts import render
+from django.http import HttpResponse
+from account.models import Transaction
 
-# Create your views here.
+
+def current_balance_view(request):
+    balance = 0
+    for transaction in Transaction.objects.all():
+        if transaction.type == Transaction.Type.INCOME:
+            balance += transaction.amount
+        else:
+            balance -= transaction.amount
+
+    return HttpResponse(f"{balance} บาท")

personal_finance/urls.py

@@ -1,21 +1,8 @@
-"""personal_finance URL Configuration
-
-The `urlpatterns` list routes URLs to views. For more information please see:
-    https://docs.djangoproject.com/en/3.1/topics/http/urls/
-Examples:
-Function views
-    1. Add an import:  from my_app import views
-    2. Add a URL to urlpatterns:  path('', views.home, name='home')
-Class-based views
-    1. Add an import:  from other_app.views import Home
-    2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
-Including another URLconf
-    1. Import the include() function: from django.urls import include, path
-    2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
-"""
 from django.contrib import admin
 from django.urls import path
+from account.views import current_balance_view
 
 urlpatterns = [
     path('admin/', admin.site.urls),
+    path('account/current-balance/', current_balance_view)
 ]