adding google signup and signin - no test

.env.example

@@ -11,4 +11,27 @@ POSTGRES_DB_PASSWORD=festpassword
 POSTGRES_DB_HOST=localhost
 POSTGRES_DB_PORT=5432
 
+BASE_FRONTEND_URL=http://localhost:3000 
+BASE_BACKEND_URL=http://localhost:8000
+
 DEFAULT_PROFILE_IMAGE_URL="https://as1.ftcdn.net/v2/jpg/03/46/83/96/1000_F_346839683_6nAPzbhpSkIpb8pmAwufkC7c5eD7wYws.jpg"
+
+# Razorpay
+RAZORPAY_KEY_ID= 
+RAZORPAY_KEY_SECRET=
+
+# Google Sign-in
+DJANGO_GOOGLE_OAUTH2_CLIENT_ID=
+DJANGO_GOOGLE_OAUTH2_CLIENT_SECRET=
+APP_SECRET=
+
+# Email configs
+EMAIL_HOST=""
+EMAIL_PORT=""
+EMAIL_HOST_USER=""
+EMAIL_HOST_PASSWORD=""
+
+PAYTM_MID=
+PAYTM_MERCHANT_KEY=
+
+LOG_FILE=

accounts/urls.py

@@ -3,7 +3,7 @@
 from rest_framework_simplejwt.views import (TokenObtainPairView,
                                             TokenRefreshView)
 
-from .views import MyObtainTokenPairView, UserProfileViewSet, UserDetailAPI, UserProfileDetailsView, RegisterUserAPIView, CookieTokenRefreshView, PreRegistrationAPIView
+from .views import MyObtainTokenPairView, UserProfileViewSet, UserDetailAPI, UserProfileDetailsView, RegisterUserAPIView, CookieTokenRefreshView, PreRegistrationAPIView, GoogleRegisterView, GoogleLoginView, GoogleRegisterViewApp, GoogleLoginViewApp, LogoutView
 
 router = routers.DefaultRouter()
 router.register(r'pre-register', PreRegistrationAPIView)
@@ -12,6 +12,11 @@
     path('', include(router.urls)),
     path('register/', RegisterUserAPIView.as_view(), name="register"),
     path('login/', MyObtainTokenPairView.as_view(), name='login'),
+    path('register/google/', GoogleRegisterView.as_view(), name='google-register'),
+    path('register/google/app/', GoogleRegisterViewApp.as_view(), name='google-register-app'),
+    path('login/google/', GoogleLoginView.as_view(), name='google-login'),
+    path('login/google/app/', GoogleLoginViewApp.as_view(), name='google-login-app'),
+    path('logout/', LogoutView.as_view(), name='logout'),
     path('profile/', UserProfileViewSet.as_view(), name='profile'),
     path('refresh/', CookieTokenRefreshView.as_view(), name='refresh'),
     path('user-details/', UserDetailAPI.as_view()),

accounts/utils.py

@@ -1,6 +1,15 @@
+import requests
+from django.conf import settings
+from typing import Dict, Any
+from django.core.exceptions import ValidationError
 from rest_framework_simplejwt.tokens import RefreshToken
 
 
+GOOGLE_ID_TOKEN_INFO_URL = 'https://www.googleapis.com/oauth2/v3/tokeninfo'
+GOOGLE_ACCESS_TOKEN_OBTAIN_URL = 'https://oauth2.googleapis.com/token'
+GOOGLE_USER_INFO_URL = 'https://www.googleapis.com/oauth2/v3/userinfo'
+
+
 def get_tokens_for_user(user):
     refresh = RefreshToken.for_user(user)
     return {
@@ -9,5 +18,38 @@ def get_tokens_for_user(user):
     }
 
 
+def google_get_access_token(*, code: str, redirect_uri: str) -> str:
+    # Reference: https://developers.google.com/identity/protocols/oauth2/web-server#obtainingaccesstokens
+    data = {
+        'code': code,
+        'client_id': settings.GOOGLE_OAUTH2_CLIENT_ID,
+        'client_secret': settings.GOOGLE_OAUTH2_CLIENT_SECRET,
+        'redirect_uri': redirect_uri,
+        'grant_type': 'authorization_code'
+    }
+
+    response = requests.post(GOOGLE_ACCESS_TOKEN_OBTAIN_URL, data=data)
+
+    if not response.ok:
+        raise ValidationError('Failed to obtain access token from Google.')
+
+    access_token = response.json()['access_token']
+
+    return access_token
+
+
+def google_get_user_info(*, access_token: str) -> Dict[str, Any]:
+    # Reference: https://developers.google.com/identity/protocols/oauth2/web-server#callinganapi
+    response = requests.get(
+        GOOGLE_USER_INFO_URL,
+        params={'access_token': access_token}
+    )
+
+    if not response.ok:
+        raise ValidationError('Failed to obtain user info from Google.')
+
+    return response.json()
+
+
 def generate_registration_code(name, lastRegCode):
     return f"{name[:3].upper()}-{lastRegCode+3155}"