DailyFresh

Online Store Website using Django

TO START

1. Run the server:
   Using python manage.py runserver at Terminal to start the server for website.
   Using nohup redis-server at Terminal to start the server of Celery

Celery is an asynchronous task queue/job queue based on distributed message passing. It is written in Python and allows you to run tasks in the background while your application is still serving other requests. You can use Celery to handle long-running tasks, such as sending emails, generating reports, or processing images.

Some detail about Function Implementation

1. Send active email after registion

jwt.
Instead using ItsDangerous to encrpt the User ID, I choose to use python-jose

Some Tips for the Migrating versions of Django

1. HTML Files

Register.html

The staticfiles library was removed in Django 2.0 and was replaced with the static library.
To fix this error, you should replace {% load staticfiles %} with {% load static %} in your templates and you should also remove or update any django.contrib.staticfiles from your installed apps, since this library is not needed anymore.

2. view Files

2.1 user/views.py

from django.core.urlresolvers import reverse should be replaced by from django.urls import reverse

Appendix

1. Send active email after registion

   1. Token An example to use python-jose:

   pip install python-jose
   # install the libray at terminal at first
   
   from datetime import datetime, timedelta
   from jose import jwt
   # SecretKey
   SECRET_KEY = "kkkkk"
   
   # Set the expire time: current time + valid time  Example: 5 minutes
   expire = datetime.utcnow() + timedelta(minutes=5)
   # exp |  sub & uid: Information
   to_encode = {"exp": expire, "sub": str(123), "uid": "12345"}
   # creat token 
   encoded_jwt = jwt.encode(to_encode, SECRET_KEY, algorithm="HS256")
   print(encoded_jwt) 
   # eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE1OTU1MDg5MzQsInN1YiI6IjEyMyIsInVpZCI6IjEyMzQ1In0.lttAYe808lVQgGhL9NXei2bbC1LIGs-SS0l6qfU_QxU

   The way I used:

   # Send active (active link) email http://127.0.0.1:8000/user/active/3
     # The link must include the ID of user, but considering about safe: encryption
     # encrpt the user information
   
     #  Set the expired time: current time + valid time  Example: 5 minutes
     expire = datetime.utcnow() + timedelta(minutes=60)
     # exp && information want to be encrypted
     infEncode = {"exp": expire, 'confirm': user.id }
     # Creat token
     encodedJwt = jwt.encode(infEncode, settings.SECRET_KEY, algorithm="HS256")

   2. To send email with HTML format

           subject = "Welcome to Yvonne's PlayGround project: DailyFresh"
           message = ''
           htmlMessage = '<h1>%s, Welcome to yvonne&apos;s websit: DailyFresh</h1> <br/> " \
                     "Please active your account by click this link : <a href ="http://127.0.0.1:8000/user/active/%s"> http://127.0.0.1:8000/user/active/%s </a>' %(username, token, token)
           sender = settings.EMAIL_FROM
           receiver = [email]
           send_mail(subject, message, sender, receiver, html_message= htmlMessage)

   3. task.py: Using Celery and Redis as broker to send Asynchronous Requests.

   Remind: do not forget to install Celery and Redis at first.
   pip install celery
   As you can see at 'redis://localhost:6379/0', I used local host.
   It should be noted that if you need to use Celery in a production environment, it is recommended to use a separate Redis instance as a message broker instead of running Redis locally.

   from  celery import  Celery
   from django.conf import settings
   from django.core.mail import send_mail
   import time
   app = Celery('celery_tasks.tasks', broker='redis://localhost:6379/0')
   @app.task
   def sendRegisterActiveEmail(toEmail, username, token):
       # Send active email, include the active link: http://127.0.0.1:8000/user/active/id
       # the active link should include the User ID
       subject = "Welcome to Yvonne's PlayGround project: DailyFresh"
       message = ''
       sender = settings.EMAIL_FROM
       receiver = [toEmail]
       htmlMessage = '<h1>%s, Welcome to yvonne&apos;s websit: DailyFresh</h1> <br/> ' \
                      'Please active your account by click this link : <a href ="http://127.0.0.1:8000/user/active/%s"> http://127.0.0.1:8000/user/active/%s </a>' % (
                     username, token, token)
       # TODO： To send the verify mail
       send_mail(subject, message, sender, receiver, html_message= htmlMessage)
       time.sleep(5)