example flask-blogging with flask-login

example.py

from flask_blogging import SQLAStorage, BloggingEngine
from flask_sqlalchemy import SQLAlchemy
from flask_login import LoginManager, UserMixin, login_user, logout_user
from flask import Flask
from sqlalchemy.exc import IntegrityError

app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///test.db'
app.config['SECRET_KEY'] = "12345"
db = SQLAlchemy(app)


class User(UserMixin, db.Model):
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(15), unique=True)
    email = db.Column(db.String(50), unique=True)
    password = db.Column(db.String(80))

login_manager = LoginManager(app)
login_manager.login_view = 'login'
storage = SQLAStorage(db=db)
blog_engine = BloggingEngine(app=app, storage=storage)
db.create_all()


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


@blog_engine.user_loader
def load_user(user_id):
    return db.session.query(User).get(user_id)

try:
    user = User(username="paul", email="test@example.com", password="12345")
    db.session.add(user)
    db.session.commit()
except IntegrityError:
    pass


@app.route("/login")
def login():
    a_user = db.session.query(User).get("1")
    login_user(a_user)
    return "OK", 200


@app.route("/logout")
def logout():
    logout_user()
    return "OK", 200

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