JWT Extended with Modular Flask Setup

[diloreto]

We're trying to make our code cleaner to read and extensible, and have broken up our Flask app in the following manner:

# import lines
...
# app initialization
...
# import routes (routes.py)
...
ifmain

Additionally, our routes.py imports a services.py where all of the functions for each route are contained.

Our question is, is it possible to use Flask JWT Extended if our app.py does not have the routes contained within it, and if the route logic is contained within a 3rd file? I would love to see an example of how to use this service when you don't have a monolithic app.py file.

Thanks!

[vimalloc]

It sounds like you are describing the Application Factory approach to structuring flask apps, which is completely supported by this extension. A basic example might look like (note this code has not been tested):

# extensions.py
from flask import jsonify
from flask_jwt_extended import JWTManager

jwt = JWTManager()

@jwt.unauthoirzed_loader
def custom_unauthorized(_error):
    return jsonfiy(foo='bar'), 200

# user_routes.py
from flask import Blueprint, jsonify
from flask_jwt_extended import jwt_required

user_blueprint = Blueprint('blueprint', __name__, url_prefix='/users')

@user_blueprint.route('/')
@jwt_required()
def index():
    return jsonify(hello='world')

# app.py
from flask import Flask

def create_app():
    app = Flask(__name__)

    from extensions import jwt
    jwt.init_app(app)

    from user_routes import user_blueprint
    app.register_blueprint(user_blueprint)

    return app

Additionally, if you don't want to use the @jwt_required() decorator in your routes, you can call verify_jwt_in_request() directly in your routes implementation, which will do the same thing as the decorator.

[diloreto]

This is perfect! Thank you very much @vimalloc ! We'll give this a shot.