app_handler_in_a_view.py

@bp.route('/create/', methods=['POST'], endpoint='create')
def create():
    form = AppForm(request.form)
    
    name = form.name.data
    description = form.description.data
    
    app = AppHandler.create(name, description)
    
    return redirect(url_for('app.show', app_id=app.id), code=301)