跳转至

快速开始

flask_openapi3 基于 Flask 和 Pydantic，因此你可以像使用Flask一样使用 flask_openapi3。

最小应用⚓︎

像 Flask 一样，创建 hello.py:

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
from flask_openapi3 import OpenAPI

app = OpenAPI(__name__)


@app.route('/')
def hello_world():
    return 'Hello, World!'


if __name__ == '__main__':
    app.run()

然后运行：

1
python hello.py

你将会看到输出信息：

1
2
3
4
5
6
 * Serving Flask app 'just_flask' (lazy loading)
 * Environment: production
   WARNING: This is a development server. Do not use it in a production deployment.
   Use a production WSGI server instead.
 * Debug mode: off
 * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)

REST API⚓︎

你可以在 flask-openapi3 中使用 get，post，put，patch，delete 等 REST API 。

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
from flask_openapi3 import OpenAPI

app = OpenAPI(__name__)


@app.get('/book')
def get_books():
    return ["book1", "book2"]


@app.post('/book')
def create_book():
    return {"message": "success"}


if __name__ == '__main__':
    app.run()

APIBlueprint⚓︎

APIBlueprint 基于 Flask Blueprint， 你应该使用 register_api 来代替 register_blueprint。

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
from flask_openapi3 import OpenAPI

app = OpenAPI(__name__)

api = APIBlueprint('/book', __name__, url_prefix='/api')


@api.post('/book')
def create_book():
    return {"message": "success"}


# register api
app.register_api(api)

if __name__ == '__main__':
    app.run()

嵌套 APIBlueprint⚓︎

允许一个 API Blueprint 被另一个 API Blueprint 注册。

更多信息请查看 Flask Nesting Blueprints。

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
from flask_openapi3 import OpenAPI, APIBlueprint

app = OpenAPI(__name__)

api = APIBlueprint('book', __name__, url_prefix='/api/book')
api_english = APIBlueprint('english', __name__)
api_chinese = APIBlueprint('chinese', __name__)


@api_english.post('/english')
def create_english_book():
    return {"message": "english"}


@api_chinese.post('/chinese')
def create_chinese_book():
    return {"message": "chinese"}


# register nested api
api.register_api(api_english)
api.register_api(api_chinese)
# register api
app.register_api(api)

if __name__ == '__main__':
    app.run(debug=True)

APIView⚓︎

基于类的 API 视图， 点击这里 查看完整示例:

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
@api_view.route("/book")
class BookListAPIView:
    a = 1

    @api_view.doc(summary="get book list")
    def get(self, query: BookQuery):
        print(self.a)
        return query.json()

    @api_view.doc(summary="create book")
    def post(self, body: BookBody):
        """description for create book"""
        return body.json()

异步 API⚓︎

在定义函数时使用 async。 更多信息参考 Using async and await — Flask Documentation。

Info

你需要使用 pip 手动安装 asgiref: 

1
2
3
4
pip install flask-openapi3[async]

# or
pip install asgiref


1
2
3
4
@app.post('/open/api')
async def post_openapi(body: Query):
    print(body)
    return 'POST, OpenAPI!'