将Flask蓝图与Flask-JWT相结合

时间:2017-02-24 04:09:28

标签: python-3.x flask flask-jwt

我正在开发一个带有蓝图的Flask 0.12应用,我正在尝试使用Flask-JWT(0.3.2)进行身份验证。

我可以看到Flask-JWT的所有教程都没有使用蓝图。

每个示例中通常都有一段代码,它们执行以下操作:

app = Flask(__name__)
jwt = JWT(app, authenticate, identity)

在蓝图烧瓶应用程序中,结构倾向于更像这样:

__初始化__吡啶

from swarm.controllers.main import main
from swarm.controllers.grid import grid
from swarm.controllers.address import address

def create_app(object_name):
    app = Flask(__name__)
    ...
    app.register_blueprint(main)
    app.register_blueprint(grid)
    app.register_blueprint(address)

控制器/ main.py:

main = Blueprint('main', __name__)

控制器/ grid.py:

grid = Blueprint('grid', __name__)

控制器/ address.py:

address = Blueprint('address', __name__)

我如何引用Flask-JWT并在控制器中使用其装饰器?

通过展示如何将JWT装饰器添加到烧瓶源代码o blueprintexample中的Michał Karzyński's REST API demo等标准示例,可能更容易回答这个问题。

1 个答案:

答案 0 :(得分:4)

我已经构建了一个允许使用Flask-JWT装饰器的简单示例。

文件结构:

server
├── app
|   ├── admin # blueprint
|   |   ├── __init__.py
|   |   ├── views.py
|   ├── __init__.py
├── config.py
└── run.py

首先,创建一个名为admin的蓝图并导入其视图

# file: server/app/admin/init.py
from flask import Blueprint

admin = Blueprint('admin', __name__)

from . import views

admin蓝图有一个视图。在这里,我们导入admin蓝图和一些flask_jwt内容,以便我们可以正确访问他们的装饰器:

from flask_jwt import jwt_required, current_identity
from . import admin

# file: server/app/admin/views.py
@admin.route('/protected')
@jwt_required()
def protected():
    return '%s' % current_identity

现在创建烧瓶应用,创建JWT实例,并将admin蓝图注册到烧瓶应用程序:

# file: server/app/__init__.py
from flask import Flask
from flask_jwt import JWT
from werkzeug.security import safe_str_cmp

from .admin import admin

# skipping over jwt authenticate() and identity() creation
# https://pythonhosted.org/Flask-JWT/
# ...

app = Flask(__name__)

app.config.from_object('config')

jwt = JWT(app, authenticate, identity)

app.register_blueprint(admin, url_prefix='/admin')

最后,设置脚本管理器:

from flask_script import Manager, Server

from server.app import app

manager = Manager(app)

# Turn on debugger by default and reloader
manager.add_command("runserver", Server(
    use_debugger = True,
    use_reloader = True,
    host = '0.0.0.0',
    port = 5000)
)

if __name__ == "__main__":
    manager.run()

现在,如果我们转到我们的/ admin / protected url,我们会看到JWT启动并运行:

{
  "description": "Request does not contain an access token",
  "error": "Authorization Required",
  "status_code": 401
}

我希望这有帮助!