Supplementary knowledge of attributes and methods of regular, JWT token, ronglianyun, celery, channel group, SKU, SPU, request object

?P Group matching in regular

[/^[email protected]#$%]  Non [email protected]#￥%

? Non greedy matching

+ Repeat , Greedy matching

re.I    Ignore case

The user login ：

1. JWT
   1. Conversation retention ？ Why does the conversation remain ？

                 Session persistence is one of the most common problems in load balancing , It's also a relatively complicated problem . Sometimes the conversation keeps   Waiting is also called sticky conversation

1. 1. What are the traditional conversation maintenance ？
   2. be based on session Keep your conversation , What's the problem ？
   3. Jwt token Usage flow , Can be solved session The problem of
2. Djangorestframework-jwt

obtain_jwt_token The view function

be based on django Built in authentication function

authenticate(username=username,password=password)

return user object or return None

1. Rong Lianyun Send SMS verification code

Celery Send SMS asynchronously

Celery Introduce ： be based on python Asynchronous task queue

Sync ： And queue , After one is executed, the other will handle

asynchronous ： Are independent of each other , There's no need to line up

Dealing with time-consuming tasks , Scheduled tasks , Distributed reptiles, etc

Channel group ： Group according to the type of data , Similar things are grouped together . A grouping of similar things . Things are divided into groups according to similar attributes .

Infinite classification ： Infinite classification simply means that a class can be divided into multiple subclasses , Then a subclass can be divided into other subclasses, which can be divided infinitely . Classify the data many times .

SKU： A unit of stock

SPU： Standardized product unit

MVC：M（ Model ）V（ View ）C（ controller ）

MVVM：M（ Model ）V（ View ）VM（ Yes M,V Binding in both directions ）

request Properties and methods of objects :

request.method： How to get the request

request.path： Get the current access path

call .split()  It returns a list