如何使用蓝图将 Flasgger 与 Flask 应用程序结合使用？

我正在使用以下命令将 Swagger UI 添加到我的 Python Flask 应用程序中Flasgger https://github.com/rochacbruno/flasgger。互联网上最常见的示例是使用基本 Flask 风格@app.route:

from flasgger.utils import swag_from

@app.route('/api/<string:username>')
@swag_from('path/to/external_file.yml')
def get(username):
    return jsonify({'username': username})

这样可行。

然而，在我的应用程序中，我没有使用@app.route装饰器来定义端点。我正在使用烧瓶蓝图。就像下面这样：

from flask import Flask, Blueprint
from flask_restful import Api, Resource
from flasgger.utils import swag_from
...

class TestResourceClass(Resource):

      @swag_from('docs_test_get.yml', endpoint='test')   
      def get() :
         print "This is the get method for GET /1.0/myapi/test endpoint"

app = Flask(__name__)
my_api_blueprint = Blueprint('my_api', __name__)
my_api = Api(my_api_blueprint)

app.register_blueprint(my_api_blueprint, url_prefix='/1.0/myapi/')

my_api.add_resource(TestResourceClass, '/test/'
                        endpoint='test',
                        methods=['GET', 'POST', 'PUT', 'PATCH', 'DELETE'])
....

如上所示，我使用了@swag_from装饰器上的TestResourceClass.get()绑定到 GET 方法端点的方法。我也有端点=test在两个地方进行匹配。

但我在 Swagger UI 上没有得到任何信息，它都是空白的。这docs_test_get.yml文件确实包含定义 swagger 规范的有效 yaml 标记。

我缺少什么？如何让 Flasgger Swagger UI 与基于 Flask 蓝图的设置一起使用？

现在有一个蓝图应用程序的示例https://github.com/rochacbruno/flasgger/blob/master/examples/example_blueprint.py https://github.com/rochacbruno/flasgger/blob/master/examples/example_blueprint.py

"""
A test to ensure routes from Blueprints are swagged as expected.
"""
from flask import Blueprint, Flask, jsonify

from flasgger import Swagger
from flasgger.utils import swag_from

app = Flask(__name__)

example_blueprint = Blueprint("example_blueprint", __name__)


@example_blueprint.route('/usernames/<username>', methods=['GET', 'POST'])
@swag_from('username_specs.yml', methods=['GET'])
@swag_from('username_specs.yml', methods=['POST'])
def usernames(username):
    return jsonify({'username': username})


@example_blueprint.route('/usernames2/<username>', methods=['GET', 'POST'])
def usernames2(username):
    """
    This is the summary defined in yaml file
    First line is the summary
    All following lines until the hyphens is added to description
    the format of the first lines until 3 hyphens will be not yaml compliant
    but everything below the 3 hyphens should be.
    ---
    tags:
      - users
    parameters:
      - in: path
        name: username
        type: string
        required: true
    responses:
      200:
        description: A single user item
        schema:
          id: rec_username
          properties:
            username:
              type: string
              description: The name of the user
              default: 'steve-harris'
    """
    return jsonify({'username': username})


app.register_blueprint(example_blueprint)

swag = Swagger(app)

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