Embedding Jinja2 into Application

[vsheffer]

Background

My team is writing a Flutter app that deploys to mobile devices and the web and that needs to generate a PDF from a Jinja2 template. The current implementation uses an external Python REST API that converts a Jinja2 template to HTML and then passes that on to a PDF generator. The resulting PDF is the return from the REST API request.

We'd like to convert the API into an embedded part of the app for the following reasons:

1. Getting feedback when the template fails is not easy using the separate API and we hope we can do better with the Dart/Flutter package,
2. Requires the use of another language in our small group of developers that only I currently possess,
3. Removes a moving part that we really don't need if we can embed this functionality in the app,
4. Closer interaction with our existing solutions to querying Firestore data, integration with existing providers, etc.

Question

It's not clear from the documentation in Github or at pub.dev whether we can embed this package in a web based application. The confusion stems from the pub.dev site. For 0.3.x the supported SDKs are both Dart and Flutter, but Web is omitted from the platforms list.

0.4.x has the same SDK list, but now has Web added as a platform, but the description still describes this as a "server side" solution.

So, really the bottom line is can we embed the 0.4.x library into a fully self contained app that can be deployed to mobile devices, operating systems, and, most importantly for us, the web?

[ykmnkmi]

Yes, dart:io dependent FileSystemLoader class has been moved to a separate library. About server side, I also mean node_interop, so it can compile to JS.