账号管理服务怎么创建

pip install flask flask-sqlalchemy flask-bcrypt flask-login

from flask import Flask, request, jsonify
from flask_sqlalchemy import SQLAlchemy
from flask_bcrypt import Bcrypt
from flask_login import LoginManager, UserMixin

app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///users.db'
app.config['SECRET_KEY'] = 'your_secret_key'

db = SQLAlchemy(app)
bcrypt = Bcrypt(app)
login_manager = LoginManager(app)

class User(db.Model, UserMixin):
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(20), unique=True, nullable=False)
    password_hash = db.Column(db.String(128), nullable=False)

    def set_password(self, password):
        self.password_hash = bcrypt.generate_password_hash(password).decode('utf-8')

    def check_password(self, password):
        return bcrypt.check_password_hash(self.password_hash, password)

@login_manager.user_loader
def load_user(user_id):
    return User.query.get(int(user_id))

@app.route('/register', methods=['POST'])
def register():
    data = request.get_json()
    username = data.get('username')
    password = data.get('password')

    if User.query.filter_by(username=username).first():
        return jsonify({'message': 'Username already exists'}), 400

    new_user = User(username=username)
    new_user.set_password(password)
    db.session.add(new_user)
    db.session.commit()

    return jsonify({'message': 'User created successfully'}), 201

@app.route('/login', methods=['POST'])
def login():
    data = request.get_json()
    username = data.get('username')
    password = data.get('password')

    user = User.query.filter_by(username=username).first()

    if not user or not user.check_password(password):
        return jsonify({'message': 'Invalid credentials'}), 401

    return jsonify({'message': 'Login successful'}), 200

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