DRF learning notes (preparation)

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Introduce

drf namely Django REST framework, It provides a definition serializer Serializer Methods , Can be quickly based on Django ORM Or other libraries automatically serialize / Deserialization .
benefits ：django You can render pages and return data , But in a specific scenario, you only need to return data ,drf It provides various methods for us to add, delete, modify and check data .

Developing REST API Interface , There are three main things to do in the view ：
1. Send the requested data （ Such as JSON Format ） Convert to model class object
2. Operating the database
3. Convert the model class object into the data of the response （ Such as JSON Format ）

One 、 Get ready

Environmental Science ：
operating system ：windows10
python: 3.7
django: 3.1.2
Suggestion editor ：pychram
Suggest
Yes django Basics

Two 、 Import and stock in

1、 install drf

pip install djangorestframework

2、 add to rest_framework
In the created django project settings.py add to rest_framework application ：

INSTALLED_APPS = [
	...
    'rest_framework',
]

3、 Database configuration
There should be no problem using the default database （ I've never used ）, This will use mysql database , Modify the database settings as follows ：

DATABASES = {
    
    'default': {
    
        'ENGINE':'django.db.backends.mysql',
        'NAME': 'db_name',  //  Your data name 
        'USER': 'username',  //  Your username 
        'PASSWORD': 'password', //  Database password 
        'HOST': '127.0.0.1',  //  Database location 
        'PORT': '3306'  //  port 
    }
}

Preparatory work completed , You can start writing interfaces ！
Next chapter ：DRF Learning notes ( One ）: Data serialization