added django proxy services of backend api

Author: drun16

server/djangoapp/.env

@@ -1,2 +1,2 @@
-backend_url =your backend url
-sentiment_analyzer_url=your code engine deployment url
+backend_url = 'https://drun16info-3030.theiadockernext-0-labs-prod-theiak8s-4-tor01.proxy.cognitiveclass.ai'
+sentiment_analyzer_url= 'https://sentianalyzers.1zz0cjdvv57l.us-south.codeengine.appdomain.cloud/'

server/djangoapp/restapis.py

@@ -1,5 +1,5 @@
 # Uncomment the imports below before you add the function code
-# import requests
+import requests
 import os
 from dotenv import load_dotenv
 
@@ -11,12 +11,41 @@
     'sentiment_analyzer_url',
     default="http://localhost:5050/")
 
-# def get_request(endpoint, **kwargs):
+def get_request(endpoint, **kwargs):
 # Add code for get requests to back end
+    params = ""
+    if(kwargs):
+        for key,value in kwargs.items():
+            params=params+key+"="+value+"&"
+    request_url = backend_url+endpoint+"?"+params
+    print("GET from {} ".format(request_url))
+    try:
+        # Call get method of requests library with URL and parameters
+        response = requests.get(request_url)
+        return response.json()
+    except:
+        # If any error occurs
+        print("Network exception occurred")
 
-# def analyze_review_sentiments(text):
+def analyze_review_sentiments(text):
 # request_url = sentiment_analyzer_url+"analyze/"+text
 # Add code for retrieving sentiments
+    request_url = sentiment_analyzer_url+"analyze/"+text
+    try:
+        # Call get method of requests library with URL and parameters
+        response = requests.get(request_url)
+        return response.json()
+    except Exception as err:
+        print(f"Unexpected {err=}, {type(err)=}")
+        print("Network exception occurred")
 
-# def post_review(data_dict):
+def post_review(data_dict):
 # Add code for posting review
+
+    request_url = backend_url+"/insert_review"
+    try:
+        response = requests.post(request_url,json=data_dict)
+        print(response.json())
+        return response.json()
+    except:
+        print("Network exception occurred")

server/djangoapp/urls.py

@@ -3,6 +3,7 @@
 from django.conf.urls.static import static
 from django.conf import settings
 from . import views
+from .restapis import get_request, analyze_review_sentiments, post_review
 
 app_name = 'djangoapp'
 urlpatterns = [
@@ -15,8 +16,14 @@
     path(route='logout', view=views.logout_request, name='logout'),
         path(route='get_cars', view=views.get_cars, name ='getcars'),
 
+    path(route='get_dealers', view=views.get_dealerships, name='get_dealers'),
+        path(route='get_dealers/<str:state>', view=views.get_dealerships, name='get_dealers_by_state'),
     # path for dealer reviews view
+    path(route='dealer/<int:dealer_id>', view=views.get_dealer_details, name='dealer_details'),
+    path(route='reviews/dealer/<int:dealer_id>', view=views.get_dealer_reviews, name='dealer_details'),
+    
 
     # path for add a review view
+        path(route='add_review', view=views.add_review, name='add_review'),
 
 ] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

server/djangoapp/views.py

@@ -95,17 +95,51 @@ def get_cars(request):
     return JsonResponse({"CarModels":cars})
 # # Update the `get_dealerships` view to render the index page with
 # a list of dealerships
-# def get_dealerships(request):
+def get_dealerships(request):
+    if(state == "All"):
+        endpoint = "/fetchDealers"
+    else:
+        endpoint = "/fetchDealers/"+state
+    dealerships = get_request(endpoint)
+    return JsonResponse({"status":200,"dealers":dealerships})
 # ...
 
 # Create a `get_dealer_reviews` view to render the reviews of a dealer
-# def get_dealer_reviews(request,dealer_id):
+def get_dealer_reviews(request,dealer_id):
+    if(dealer_id):
+        endpoint = "/fetchDealer/"+str(dealer_id)
+        dealership = get_request(endpoint)
+        return JsonResponse({"status":200,"dealer":dealership})
+    else:
+        return JsonResponse({"status":400,"message":"Bad Request"})
 # ...
 
 # Create a `get_dealer_details` view to render the dealer details
 # def get_dealer_details(request, dealer_id):
+def get_dealer_reviews(request, dealer_id):
+    # if dealer id has been provided
+    if(dealer_id):
+        endpoint = "/fetchReviews/dealer/"+str(dealer_id)
+        reviews = get_request(endpoint)
+        for review_detail in reviews:
+            response = analyze_review_sentiments(review_detail['review'])
+            print(response)
+            review_detail['sentiment'] = response['sentiment']
+        return JsonResponse({"status":200,"reviews":reviews})
+    else:
+        return JsonResponse({"status":400,"message":"Bad Request"})
 # ...
 
 # Create a `add_review` view to submit a review
 # def add_review(request):
+def add_review(request):
+    if(request.user.is_anonymous == False):
+        data = json.loads(request.body)
+        try:
+            response = post_review(data)
+            return JsonResponse({"status":200})
+        except:
+            return JsonResponse({"status":401,"message":"Error in posting review"})
+    else:
+        return JsonResponse({"status":403,"message":"Unauthorized"})
 # ...