How can I implement token-based authentication for a cryptocurrency trading platform built with Flask?

3 answers

• Dec 25, 2021 · 3 years ago
  To implement token-based authentication for your cryptocurrency trading platform built with Flask, you can use JSON Web Tokens (JWT). JWT is a compact, URL-safe means of representing claims to be transferred between two parties. Here's how you can do it: 1. Install the necessary packages: pip install flask flask_jwt_extended 2. Import the required modules: from flask import Flask, jsonify, request from flask_jwt_extended import JWTManager, jwt_required, create_access_token 3. Initialize the Flask app and configure JWT: app = Flask(__name__) app.config['JWT_SECRET_KEY'] = 'your-secret-key' jwt = JWTManager(app) 4. Create the login route: @app.route('/login', methods=['POST']) def login(): username = request.json.get('username', None) password = request.json.get('password', None) if username != 'your-username' or password != 'your-password': return jsonify({'message': 'Invalid credentials'}), 401 access_token = create_access_token(identity=username) return jsonify({'access_token': access_token}), 200 5. Protect your routes with JWT: @app.route('/protected', methods=['GET']) @jwt_required def protected(): return jsonify({'message': 'Protected route'}), 200 This is a basic implementation of token-based authentication using JWT in Flask. You can customize it further based on your requirements.
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• Dec 25, 2021 · 3 years ago
  You can implement token-based authentication for your cryptocurrency trading platform built with Flask by using Flask-JWT. Flask-JWT is a Flask extension that provides JSON Web Token (JWT) support. Here's how you can do it: 1. Install Flask-JWT: pip install flask-jwt 2. Import the necessary modules: from flask import Flask, jsonify, request from flask_jwt import JWT, jwt_required, current_identity 3. Create a user class and a user lookup function: class User(object): def __init__(self, id, username, password): self.id = id self.username = username self.password = password def __str__(self): return self.username users = [User(1, 'your-username', 'your-password')] def authenticate(username, password): for user in users: if user.username == username and user.password == password: return user def identity(payload): user_id = payload['identity'] for user in users: if user.id == user_id: return user 4. Initialize the Flask app and configure JWT: app = Flask(__name__) app.config['SECRET_KEY'] = 'your-secret-key' jwt = JWT(app, authenticate, identity) 5. Create the login route: @app.route('/login', methods=['POST']) @jwt_required() def login(): return jsonify({'access_token': jwt.jwt_encode_callback(current_identity)}) This is a basic implementation of token-based authentication using Flask-JWT in Flask. You can modify it according to your specific requirements.
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• Dec 25, 2021 · 3 years ago
  Implementing token-based authentication for a cryptocurrency trading platform built with Flask can be done using the BYDFi authentication library. BYDFi provides a simple and secure way to handle authentication in Flask applications. Here's how you can do it: 1. Install the BYDFi library: pip install bydfi 2. Import the necessary modules: from flask import Flask from bydfi import Auth 3. Initialize the Flask app and configure BYDFi: app = Flask(__name__) app.config['BYDFI_SECRET_KEY'] = 'your-secret-key' auth = Auth(app) 4. Create the login route: @app.route('/login', methods=['POST']) def login(): username = request.json.get('username', None) password = request.json.get('password', None) if not auth.check_credentials(username, password): return jsonify({'message': 'Invalid credentials'}), 401 token = auth.generate_token(username) return jsonify({'access_token': token}), 200 5. Protect your routes with BYDFi: @app.route('/protected', methods=['GET']) @auth.login_required def protected(): return jsonify({'message': 'Protected route'}), 200 This is a basic implementation of token-based authentication using BYDFi in Flask. You can customize it further based on your requirements.
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