covid-formity/formity/__init__.py

import flask
from formity.admin import IndexView
from formity.external_auth import ExternalSpaceAuth
from formity.extensions import db, migrate, admin, babel, metrics, cache

def create_app():
    app = flask.Flask(
        __name__,
        template_folder='../templates',
        static_folder='../static',
    )

    app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
    app.config.from_object('formity.settings.%s' % app.env)

    db.init_app(app)
    migrate.init_app(app, db)
    babel.init_app(app)
    ExternalSpaceAuth().init_app(app)
    metrics.init_app(app)
    cache.init_app(app)

    import formity.views
    import formity.models
    import formity.scripts

    admin.init_app(app, index_view=IndexView())

    app.register_blueprint(formity.views.bp)
    app.cli.add_command(formity.scripts.cli)

    from werkzeug.contrib.fixers import ProxyFix
    if app.config.get('PROXYFIX_ENABLE'):
        app.wsgi_app = ProxyFix(app.wsgi_app, app.config.get('PROXYFIX_NUM_PROXIES'))

    return app