django設定swagger自動生成介面檔案以及自定義引數設定

2023-08-25 18:01:00

  首先安裝swagger所用的包

pip install drf-yasg

  

  然後再settings.py 中註冊app

  

        

   

  介面採用的token認證,在settings.py設定認證方式

    

SWAGGER_SETTINGS = {
    'USE_SESSION_AUTH': False,
    'SECURITY_DEFINITIONS': {
        '身份驗證': {
            'type': 'apiKey',
            'in': 'header',
            'name': 'Authorization'
        }
    },
}

  

  配好後開啟的認證是這樣的

  

   

  在urls.py中設定路由

    

from django.contrib import admin
from django.urls import path, include

# 使用 drf_yasg API檔案生成器 檢視和openapi
from django.views.static import serve
from drf_yasg.views import get_schema_view
from drf_yasg import openapi

# 匯入許可權控制模組
from rest_framework import permissions

# 檔案檢視
schema_view = get_schema_view(
    # API 資訊
    openapi.Info(
        title='介面檔案',   # API檔案標題
        default_version='V1',   # 版本資訊
        description='介面檔案',    # 描述內容
        # terms_of_service='https://qaq.com',    # 開發團隊地址
        # contact=openapi.Contact(email='https://[email protected]',url='https://qaq.com'),   # 聯絡人資訊:郵件、網址
        # license=openapi.License(name='qaq License'),    # 證書
    ),
    public=True,    # 是否公開
    # permission_classes=(permissions.AllowAny,)   # 設定使用者許可權

)

urlpatterns = [
    path('admin/', admin.site.urls),

    path('userManage/', include('userManage.urls')),
    path('ani/', include('ani.urls')),

    path('swagger/', schema_view.with_ui('swagger', cache_timeout=0), name='schema-swagger-ui'),   # 互動模式
    path('redoc/', schema_view.with_ui('redoc', cache_timeout=0), name='schema-redoc'),   # 檔案模式
]

  

  設定好以後開啟  http://127.0.0.1:8000/swagger/即可存取到介面檔案頁面

  

  開啟檢視後發現,請求的引數缺少了,返回的引數和介面實際返回的引數不一樣,因為我的檢視繼承APIView做了一些自定義的請求引數和返回引數。

  所以需要自定義swagger

 

  util.py檔案,因為自動生成的採用序列化 query_serializer引數就會將一些外來鍵的source欄位也加到引數裡面,所以重新去獲取序列器的欄位。再定義一個

  固定格式的基礎類別

  

from rest_framework import serializers
from drf_yasg import openapi
from rest_framework.relations import PrimaryKeyRelatedField
from rest_framework.fields import ChoiceField


def serializer_to_swagger(ser_model, get_req=False):
    '''
    將序列化欄位轉成openapi的形式
    '''
    if ser_model is None and get_req is True:
        return {}, []
    elif ser_model is None and get_req is False:
        return {}
    dit = {}
    serializer_field_mapping = {
        ChoiceField: openapi.TYPE_INTEGER,
        PrimaryKeyRelatedField: openapi.TYPE_INTEGER,
        serializers.IntegerField: openapi.TYPE_INTEGER,
        serializers.BooleanField: openapi.TYPE_BOOLEAN,
        serializers.CharField: openapi.TYPE_STRING,
        serializers.DateField: openapi.TYPE_STRING,
        serializers.DateTimeField: openapi.TYPE_STRING,
        serializers.DecimalField: openapi.TYPE_NUMBER,
        serializers.DurationField: openapi.TYPE_STRING,
        serializers.EmailField: openapi.TYPE_STRING,
        serializers.ModelField: openapi.TYPE_OBJECT,
        serializers.FileField: openapi.TYPE_STRING,
        serializers.FloatField: openapi.TYPE_NUMBER,
        serializers.ImageField: openapi.TYPE_STRING,
        serializers.SlugField: openapi.TYPE_STRING,
        serializers.TimeField: openapi.TYPE_STRING,
        serializers.URLField: openapi.TYPE_STRING,
        serializers.UUIDField: openapi.TYPE_STRING,
        serializers.IPAddressField: openapi.TYPE_STRING,
        serializers.FilePathField: openapi.TYPE_STRING,
    }
    fields = ser_model().get_fields()
    if get_req:
        required = []
        for k, v in fields.items():
            description = getattr(v, 'label', '')
            if isinstance(v, serializers.SerializerMethodField) or getattr(v, 'source'):
                continue
            elif isinstance(v, ChoiceField):
                description += str(dict(getattr(v, 'choices', {})))
            if getattr(v, 'required', True) is not False:
                required.append(k)
            typ = serializer_field_mapping.get(type(v), openapi.TYPE_STRING)
            dit[k] = openapi.Schema(description=description, type=typ)
        return dit, required
    else:
        for k, v in fields.items():
            description = getattr(v, 'label', '')
            if isinstance(v, ChoiceField):
                description += str(dict(getattr(v, 'choices', {})))
            elif isinstance(v, serializers.SerializerMethodField):
                continue
            typ = serializer_field_mapping.get(type(v), openapi.TYPE_STRING)
            dit[k] = openapi.Schema(description=description, type=typ)

        return dit


class ViewSwagger(object):
    """
    openapi檢視類
    重寫請求引數和返回引數,呼叫對應的類方法即可
    """

    get_operation = '獲取資料'
    get_req_params = []
    get_req_body = None
    get_res_data = None
    get_res_examples = {'json': {}}
    get_res_description = ' '
    get_res_code = 200

    post_operation = '新增資料'
    post_req_params = []
    post_req_body = None
    post_res_data = None
    post_res_examples = {'json': {}}
    post_res_description = ' '
    post_res_code = 200

    put_operation = '修改資料'
    put_req_params = []
    put_req_body = None
    put_res_data = None
    put_res_examples = {'json': {}}
    put_res_description = ' '
    put_res_code = 200

    delete_operation = '刪除資料'
    delete_req_params = []
    delete_req_body = None
    delete_res_data = None
    delete_res_examples = {'json': {}}
    delete_res_description = ' '
    delete_res_code = 200

    @classmethod
    def req_serialize_schema(cls, serializer):
        return serializer_to_swagger(serializer, get_req=True)

    @classmethod
    def res_serialize_schema(cls, serializer):
        return serializer_to_swagger(serializer, get_req=False)

    @classmethod
    def get(cls):
        ret = {
            'manual_parameters': cls.get_req_params,
            'request_body': cls.get_req_body,
            'operation_summary': cls.get_operation,
            'responses': {
                cls.get_res_code: openapi.Response(description=cls.get_res_description, schema=cls.get_res_data,
                                                   examples=cls.get_res_examples)}
        }
        return ret

    @classmethod
    def post(cls):
        ret = {
            'manual_parameters': cls.post_req_params,
            'request_body': cls.post_req_body,
            'operation_summary': cls.post_operation,
            'responses': {
                cls.post_res_code: openapi.Response(description=cls.post_res_description, schema=cls.post_res_data,
                                                    examples=cls.post_res_examples)}
        }
        return ret

    @classmethod
    def put(cls):
        ret = {
            'manual_parameters': cls.put_req_params,
            'request_body': cls.put_req_body,
            'operation_summary': cls.put_operation,
            'responses': {
                cls.put_res_code: openapi.Response(description=cls.put_res_description, schema=cls.put_res_data,
                                                   examples=cls.put_res_examples)}
        }
        return ret

    @classmethod
    def delete(cls):
        ret = {
            'manual_parameters': cls.delete_req_params,
            'request_body': cls.delete_req_body,
            'operation_summary': cls.delete_operation,
            'responses': {
                cls.delete_res_code: openapi.Response(description=cls.delete_res_description,
                                                      schema=cls.delete_res_data,
                                                      examples=cls.delete_res_examples)}
        }
        return ret

 

  下面只要在檢視中單獨定義對應的欄位即可,gender.py 如下

  

import copy

from django.utils.decorators import method_decorator

from ani import models
from ani.serializer import GenderSerializer
from utils.decorators import request_decrypt, auth_token
from utils.myView import MyPagination, MyView, MixinGetList, MixinPostCreateModel, MixinPutUpdateModel, \
    MixinDeleteDestroyModel

from drf_yasg import openapi
from drf_yasg.utils import swagger_auto_schema
from utils.util import ViewSwagger


class APISwagger(ViewSwagger):
    serializer = GenderSerializer
    res_ser_schema = ViewSwagger.res_serialize_schema(serializer)
    req_ser_schema, req_ser_required_fields = ViewSwagger.req_serialize_schema(serializer)
    get_operation = '獲取資料'
    get_req_params = [
        openapi.Parameter(name='name__icontains', in_=openapi.IN_QUERY, description='過濾包含該欄位', type=openapi.TYPE_STRING,
                          required=False),
    ]
    get_req_body = None
    get_res_data = openapi.Schema(type=openapi.TYPE_OBJECT, properties={
            'data': openapi.Schema(description='', type=openapi.TYPE_ARRAY, items=openapi.Schema(type=openapi.TYPE_OBJECT, properties={
                **res_ser_schema
            })),
            'total': openapi.Schema(description='總數', type=openapi.TYPE_INTEGER),
        })
    get_res_examples = {'json': {}}
    get_res_description = 'get返回'
    get_res_code = 200

    post_schema = copy.copy(req_ser_schema)
    del post_schema['id']
    post_operation = '新增資料'
    post_req_params = []
    post_req_body = openapi.Schema(
            type=openapi.TYPE_OBJECT,
            properties={
                **post_schema
                },
            required=req_ser_required_fields
        )
    post_res_data = openapi.Schema(type=openapi.TYPE_OBJECT, properties={
                **res_ser_schema
        })
    post_res_examples = {'json': {}}
    post_res_description = ' '
    post_res_code = 200

    put_fields = req_ser_required_fields
    put_fields.append('id')
    put_operation = '新增資料'
    put_req_params = []
    put_req_body = openapi.Schema(
        type=openapi.TYPE_OBJECT,
        properties={
            **req_ser_schema
        },
        required=put_fields
    )
    put_res_data = openapi.Schema(type=openapi.TYPE_OBJECT, properties={
        **res_ser_schema
    })
    put_res_examples = {'json': {}}
    put_res_description = ' '
    put_res_code = 200


@method_decorator([swagger_auto_schema(**APISwagger.delete())], name='delete')
@method_decorator([swagger_auto_schema(**APISwagger.put())], name='put')
@method_decorator([swagger_auto_schema(**APISwagger.post())], name='post')
@method_decorator([swagger_auto_schema(**APISwagger.get())], name='get')
# @method_decorator(auth_token, name='get')
class GenderView(MyView, MixinGetList, MixinPostCreateModel, MixinPutUpdateModel, MixinDeleteDestroyModel):
    """
    get:
        查詢
    post:
        新增
    put:
        修改
    delete:
        刪除

    """
    queryset = models.Gender.objects.all()
    serializer_class = GenderSerializer
    all_serializer_class = GenderSerializer
    filter_class = ['name__icontains']
    pagination_class = MyPagination
    lookup_field = 'id'
    ordeing_field = ('-id',)

  

  開啟的介面檔案變成

  

 

  try it out 呼叫介面,得到一樣的資料

  

   

  注意:如果是post請求提交表單資料的時候,那麼這個檢視只能解析  parser_classes = [MultiPartParser],自定義的欄位和get請求差不多,只需要將 _in=openapi.IN_FORM  即可

 

  專案檔案結構