How can I implement authentication in a Flask RESTful API?

How can I implement authentication in a Flask RESTful API?

You can use Flask-RESTful along with Flask-JWT-Extended for authentication. Would you like a code example?

Yes, please provide a code example.

Here's a simple example:

from flask import Flask, jsonify, request
from flask_restful import Api, Resource
from flask_jwt_extended import JWTManager, create_access_token, jwt_required

app = Flask(__name__)
app.config['JWT_SECRET_KEY'] = 'your_secret_key'
jwt = JWTManager(app)
api = Api(app)

class User(Resource):
    def post(self):
        username = request.json.get('username')
        password = request.json.get('password')
        # Here you would verify the username and password
        access_token = create_access_token(identity=username)
        return jsonify(access_token=access_token)

class Protected(Resource):
    @jwt_required()
    def get(self):
        return jsonify(message='This is a protected route')

api.add_resource(User, '/login')
api.add_resource(Protected, '/protected')

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

What dependencies do I need to install for this?

You need to install Flask, Flask-RESTful, and Flask-JWT-Extended. You can do this using pip:

pip install Flask Flask-RESTful Flask-JWT-Extended