node-microinvoice VS WeasyPrint

Not sure this actually solves a real problem. A lot of the questions/problems mentioned in the article are already things being addressed by any service worth using.

At the end of the day, you just need to generate a PDF from a template. The template is a solved problem. Invoices generally do not have that huge amount of variability in terms of layout.

I have been using microinvoice (https://github.com/baptistejamin/node-microinvoice) for the past couple of months and it's been a breeze. It uses PDFKit underneathe and has been working really well. I don't think PDF generation is a task that should require using Chromium. There's pandoc & other libraries that can easily do this at a much lower cost to both resources and finance.

The blog posts sounds like its solving a problem that doesn't exist. Generating invoices _at scale_? Is scalibility really a problem here? Generating a PDF takes a couple of milliseconds. Rent a $5 VPS and it can generate all sorts of PDFs for you without an issue for a long time before you'd start worrying about scalability. Heck this sort of thing doesn't even need to be a dedicated service.

Not to downplay anyone's hard work but Lago just doesn't sound like it's solving a real problem.

Is there a reason you didn't consider something like Weasyprint?

https://weasyprint.org

I've gone through a number of systems to convert CV's, business cards, and other docs and it hasn't let me down yet.

You don't _have_ to use a browser. I had very good results with Weasyprint [0]. And there's also PrinceXML [1] if you're willing to pay.

[0]: https://weasyprint.org/

Thanks for your answer! I imagined you would be using PrinceXML behind the scenes since that is probably the gold standard in HTML+CSS rendering.

The only open source alternative I know of is WeasyPrint at https://weasyprint.org/. I'm not sure how well it fares against PrinceXML, though.

And thanks for the pointer to Taffy - I didn't know it before!

Flexbox support has been [included][1] since 2018, although my use case was the prototypical one - a single row w/ 3 columns - so YMMV with how it handles more complex layouts.

[1]: https://github.com/Kozea/WeasyPrint/pull/579

Performance is not the strength of WeasyPrint, meaning that heavy HTML files will increase generation time. You should always compress images before attaching them, as they are not compressed by default. Generating a 50-page-long PDF may take up to a minute in extreme cases, although multi-page documents generated on my project take fewer than 2 seconds to generate.

For Python there is Weasyprint: you prepare the invoice as an HTML document, and Weasyprint turns it into a PDF

https://weasyprint.org/

Well yes, but you can implement HTML+CSS. WeasyPrint did from scratch, and independent implementations of HTML+CSS are considerably more numerous than HTML+CSS+JS.

In a recent project I used https://github.com/Kozea/WeasyPrint/ it is written in python, so you will need to use it like so:

You should maybe check out weasyprint. https://weasyprint.org/