existing_user = User.query.filter_by(username=username).first() if existing_user: return jsonify({"msg": "Username already exists"}), 400
from flask import Flask, request, jsonify from flask_sqlalchemy import SQLAlchemy from flask_bcrypt import Bcrypt amkingdom login
def check_password(self, password): return bcrypt.check_password_hash(self.password, password) Create endpoints for registration and login: existing_user = User