v02

v02 Using Jinja templates and embedding Dash apps anywhere you want

• We now create routes for our Flask app object.
• Each route view function will return render_template, which is a pure HTML page, that will be rendered on every URL. The difference is that it takes variables for objects to be inserted wherever we want.
• The relevant Dash app will be given to render_template and injeted into our HTML page where we placed it.
• Dash apps have an index method which gives the body of the app (app.index()). This is what we will use in the dynamic region of every page.
• We also create a /templates/ folder in which we can add as many page templates as we want.
• A "base.html" template was created to be used.
• We now have a template of content that appear on all pages, fully manged by Flask. In this template the dynamic part gets a Dash app and displays its content and functionality.
• Important: The routes that belong to the Flask app should not have the same path as the url_base_pathname in the Dash apps. Otherwise that path would be managed by the Dash app. One approach might be to use the same paths, but prepend the Dash apps' path with a special folder, here I use /test/.

To run:

cd v02/
export FLASK_APP=app.py
flask run