configure nbsphinx to generate html tags from notebook metadata?

[tylerflex]

Our .ipynb files contain basic metadata that we want to embed in the eventual html in our sphinx-generated docs.

As an example:

# Example.ipynb
{
    "metadata": {
        "title": "A Well Written Title.",
        "description": "A meta tag description.",
        ...
    },
    "cells" : [...]
}

# Example.html
<title>A Well Written Title.</title>
<meta name="description"  content=A meta tag description. />

How can I accomplish this with nbsphinx?

With nbconvert, I am able to use a custom template with the following lines in it

{% set nb_title = nb.metadata.get('title', '') or resources['metadata']['name'] %}
<title>{{nb_title}}</title>

{% set nb_descr = nb.metadata.get('description', '') %}
<meta name="description"  content={{nb_descr}} />

Is it possible to specify nbsphinx to use this template in my conf.py? Or is there a way to replicate this behavior in nbsphinx configuration?

Any other approaches you can recommend?
Thanks!

[mgeier]

Is is not possible to use nbconvert templates with nbsphinx, because it doesn't use nbconvert to create the HTML output. Instead, Sphinx is using its own templates, see e.g. https://github.com/sphinx-doc/sphinx/blob/master/sphinx/themes/basic/layout.html

I'm sure this can be implemented rather easily. The template uses the title and titlesuffix Jinja variables, which I guess can be somehow set during the build process.
And there is a metatags variable which can probably be used for the description thing.