Add redirection to frontend on email activation

app/accounts/api.py

@@ -33,15 +33,15 @@ def confirm_email_token(token):
     try:
         email = confirm_token(token)
     except Exception:
-        return False
+        return False, None
     user = Account.query.filter_by(email=email).first_or_404()
     if user.confirmed:
-        return True
+        return True, user.email
     else:
         user.confirmed = True
         user.confirmed_on = datetime.datetime.now()
         user.save()
-        return True
+        return True, user.email
 
 
 def update_account_role(account_id, role_id):

app/api/resources/account.py

@@ -1,5 +1,5 @@
 from flask_restful import Resource, abort
-from flask import g, render_template
+from flask import g, render_template, redirect
 from marshmallow import Schema, fields
 from webargs.flaskparser import use_args
 from flasgger import swag_from
@@ -10,6 +10,7 @@ from app.api.auth_protection import ProtectedResource
 from app.api.permission_protection import (requires_permission,
                                            valid_permissions)
 from app.api.schemas import BaseResourceSchema
+from flask import current_app as app
 
 
 class UserSchema(BaseResourceSchema):
@@ -107,10 +108,15 @@ class AccountListResource(Resource):
 
 class AccountEmailTokenResource(Resource):
     def get(self, token):
-        success = accounts.confirm_email_token(token)
+        success, email = accounts.confirm_email_token(token)
         if success:
-            return '{"status": "success", \
+            html = render_template(
-                     "message": "Successfully confirmed email"}', 200
+                    'welcome_to_iot.html')
+            send_email_task.delay(
+                    email,
+                    'Welcome to IoT!',
+                    html)
+            return redirect(app.config['FRONTEND_URL'])
 
 
 class AccountEmailTokenResendResource(Resource):

app/templates/welcome_to_iot.html

@@ -0,0 +1,3 @@
+<p>Welcome! Thanks for signing up! You have successfully confirmed your email.</p>
+<br>
+<p>Cheers!</p>

config.py

@@ -55,6 +55,10 @@ MAIL_PASSWORD = os.environ['APP_MAIL_PASSWORD']
 # mail accounts
 MAIL_DEFAULT_SENDER = 'final.iot.backend.mailer@gmail.com'
 
+# frontend
+FRONTEND_URL = (os.environ.get('IOT_FRONTEND_URL') or
+                'http://iot-frontend-app.herokuapp.com/')
+
 # Flasgger config
 SWAGGER = {
     'uiversion': 3