How can I implement advanced refresh tokens in Flask with JWT?

How can I implement advanced refresh tokens in Flask with JWT?

To implement advanced refresh tokens in Flask with JWT, you can use the Flask-JWT-Extended library. It allows you to create access and refresh tokens easily.

What are the benefits of using refresh tokens?

Refresh tokens allow users to obtain new access tokens without re-authenticating, enhancing security and user experience.

Can you show me a code example?

Sure! Here's a basic example:

from flask import Flask, jsonify, request
from flask_jwt_extended import JWTManager, create_access_token, create_refresh_token, jwt_refresh_token_required

app = Flask(__name__)
app.config['JWT_SECRET_KEY'] = 'your_secret_key'

jwt = JWTManager(app)

@app.route('/login', methods=['POST'])
def login():
    username = request.json.get('username')
    access_token = create_access_token(identity=username)
    refresh_token = create_refresh_token(identity=username)
    return jsonify(access_token=access_token, refresh_token=refresh_token)

@app.route('/refresh', methods=['POST'])
@jwt_refresh_token_required
def refresh():
    current_user = get_jwt_identity()
    new_access_token = create_access_token(identity=current_user)
    return jsonify(access_token=new_access_token)

What should I do to secure my refresh tokens?

To secure your refresh tokens, store them securely (e.g., in an HttpOnly cookie), use short expiration times, and implement token revocation.