added function multiply

api_tut/settings.py

@@ -27,6 +27,9 @@
 
 ALLOWED_HOSTS = []
 
+APPEND_SLASH=False
+CORS_ALLOW_ALL_ORIGINS = True
+
 
 # Application definition
 
@@ -37,7 +40,9 @@
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
-    'first_app.apps.FirstAppConfig'
+    'first_app.apps.FirstAppConfig',
+    'corsheaders',
+
 ]
 
 MIDDLEWARE = [
@@ -48,6 +53,8 @@
     'django.contrib.auth.middleware.AuthenticationMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
+    'corsheaders.middleware.CorsMiddleware',
+    'django.middleware.common.CommonMiddleware',
 ]
 
 ROOT_URLCONF = 'api_tut.urls'

first_app/urls.py

@@ -4,4 +4,5 @@
 urlpatterns = [
     path('', views.home),
     path('first', views.first),
+    path('multiply', views.multiply),
 ]

first_app/views.py

@@ -1,9 +1,35 @@
 from django.shortcuts import render
 from django.http import JsonResponse
+from django.http import HttpResponse
+
 
 def first(request):
     return JsonResponse({"data":7})
 
 def home(request):
     print(request)
-    return JsonResponse({"data":7})
+    return JsonResponse({"data":7})
+
+def multiply(request):
+    #print(request)
+    if request.method != 'GET':
+        return  JsonResponse({"answer":'Please send Get request!'})
+
+    listOfVal= list(request.GET.dict().values())
+    if len(listOfVal)!=2:
+        return JsonResponse({"answer":'Please send exactly 2 params!'})
+
+    a=listOfVal[0]
+    b=listOfVal[1]
+    if isfloat(a) and isfloat(b):
+        return JsonResponse({"answer":str(float(a)*float(b))})
+    return JsonResponse({"answer":'Please send numbsers!'})
+
+
+
+def isfloat(value):
+  try:
+    float(value)
+    return True
+  except ValueError:
+    return False