RuntimeError: Working outside of application context. when creating SQLite DB about flaskintroduction

[FaustWarrior]

For those of you who faced the database creation error, do the following:

from app import app, db
app.app_context().push()
db.create_all()

it should be created under instance directory after those commands.

[linaMallek]

def create_tables():
db.create_all()

just add this lines after class Todo(db.Model) , after runing the app once put them as comment this worked for me

[ParthChodvadiya1]

@fthobe

you can add

if__name__ == '__main__':
    
#app.run starts the app and contains variables and configures the app to run on localhost ("host=0.0.0.0"), the port (you can use a different one than 80) and sets it in debug mode ("debug=True")
    app.run(host='0.0.0.0', port=80, debug=True)
    with app.app_context():
        db.create_all()

Now try to run direct app.py file

[jakerieger]

Is your virtual environment active in the terminal you start the REPL in? The error hints that you're attempting to execute code outside of its working context which sounds like an environment issue to me

[YohanesGetinet1]

call manually in the flask shell , this is because I think in Flask-SQLAlchemy to access the DB db.engine and db.session requires an active Flask app context , when you run the CLI command a context will be pushed automatically.

flask shell,
db.create_all()