Handlebars.Net VS RazorLight

I have worked with custom code genertators that I wrote using templating systems like Handlebars.NET or similar, and I have also worked with incremental and 'regular' source generators.

7) To serve HTML I found the well maintained Handlebars.NET.

For the placeholder replacement in the html template (eg. UserFirstName) we use HandlebarsDotNet (https://github.com/Handlebars-Net/Handlebars.Net) which works as a charm. Even for lists and objects.

I've seen Handlebars.NET being used for something like this: https://github.com/Handlebars-Net/Handlebars.Net

Yes, I have used Razor pages in non-website applications before where I needed to load the cshtml templates from a different source. I have written Line of Business apps (think WinForms or WPF) where the reporting spits out HTML with tables and charts. There are a number of similar projects to yours out there which I have used in the past such as RazorLight or RazorMachine.

Your mileage may vary but I've had good luck with the RazorLight library for generating HTML emails from a template with data merged in. Under the hood, it uses the ASP.NET Razor engine for applying a model to a template.

We use https://github.com/toddams/RazorLight in combination with serverless functions.

you could use a razor based engine to generate html based on a view model (your data). take a look at: https://github.com/toddams/RazorLight i use it to generate html emails

Rails has a templating system for generating emails (standard HTML/ERB files). If you're running an ASP.NET Web API (not MVC) the best way of doing that I've found is via Razorlight which you have to set up manually - https://github.com/toddams/RazorLight

With Rails the standard is pretty much Devise or Omniauth (or both) - does everything for you. I've never found anything for ASP like Devise which gives you an entire login system with all the required views/migrations in a couple commands.

I use RazorLight: https://github.com/toddams/RazorLight

Razor Light