Overview:

LiveSvelte is a library that combines the power of Phoenix LiveView and Svelte to enable easy client-side state management and seamless end-to-end reactivity in server-rendered HTML. By leveraging Phoenix LiveView’s websocket communication, LiveSvelte allows for real-time updates to the DOM without the need to write client-side JavaScript code. This library also provides support for server-side rendering (SSR) using Node.js and offers features such as Sigil as an alternative LiveView DSL, Svelte preprocessing support, Tailwind CSS integration, and more.

Features:

• End-To-End Reactivity with LiveView: LiveSvelte enables seamless reactivity in server-rendered HTML by leveraging Phoenix LiveView’s websocket communication.
• Server-Side Rendered (SSR) Svelte: LiveSvelte supports server-side rendering of Svelte components, providing enhanced performance and SEO benefits.
• Sigil as an Alternative LiveView DSL: LiveSvelte introduces Sigil as an alternative DSL for LiveView, offering a more concise and expressive syntax for building reactive web applications.
• Svelte Preprocessing Support with svelte-preprocess: With LiveSvelte, you can take advantage of Svelte’s preprocessing capabilities using svelte-preprocess, allowing for features like TypeScript integration, CSS preprocessing, and more.
• Tailwind Support: LiveSvelte seamlessly integrates with the popular Tailwind CSS framework, making it easy to style and design your LiveView components using Tailwind’s utility classes.
• Dead View Support: LiveSvelte provides support for Dead Views, allowing you to remove unnecessary server-side rendering for specific components or pages.
• live_json Support: LiveSvelte includes support for the live_json function, which allows for convenient manipulation and update of JSON data directly in the LiveView component.
• Slot Interoperability (Experimental): LiveSvelte offers experimental support for Slot Interoperability, allowing you to use Svelte components within LiveView’s slots for enhanced modularity and reusability.

Installation:

To install LiveSvelte, follow these steps:

1. Add live_svelte to the list of dependencies in your mix.exs file:

defp deps do
  [
    ...
    {:live_svelte, "~> 0.5"},
    ...
  ]
end

2. Adjust the setup and assets.deploy aliases in your mix.exs file:

defp setup do
    [
      {:commands, ["app.setup", "assets.link", "ecto.setup", "live_svelte.setup"]},
      {:atomic, true}
    ]
end

defp assets.deploy do
    [
      {:copy_static_ass"

4. Add the `import LiveSvelte` statement in the `html_helpers/0` function inside `/lib/<app_name>_web.ex`:
```elixir
def html_helpers do
  quote do
    ...
    import LiveSvelte
    ...
  end
end

5. (Optional) For Tailwind support, add "./svelte/**/*.svelte" to the content array in the tailwind.config.js file.

6. Remove the esbuild configuration from the config/config.exs file and remove the esbuild dependency from the deps function in your mix.exs file.

Summary:

LiveSvelte is a powerful library that combines the benefits of Phoenix LiveView and Svelte to create reactive and dynamic user interfaces in server-rendered HTML. With seamless end-to-end reactivity, server-side rendering support, and a range of other features such as Sigil DSL, Svelte preprocessing, and Tailwind integration, LiveSvelte offers a comprehensive solution for building interactive web applications. The easy installation process and compatibility with Phoenix LiveView make LiveSvelte a convenient choice for developers looking to enhance their LiveView projects with client-side state management and advanced frontend capabilities.