Litestar Vite

Important

This plugin currently contains minimal features and is a work-in-progress

Installation

pip install litestar-vite

Usage

Here is a basic application that demonstrates how to use the plugin.

from __future__ import annotations

from pathlib import Path

from litestar import Controller, get, Litestar
from litestar.response import Template
from litestar.status_codes import HTTP_200_OK
from litestar_vite import ViteConfig, VitePlugin

class WebController(Controller):

    opt = {"exclude_from_auth": True}
    include_in_schema = False

    @get(["/", "/{path:str}"],status_code=HTTP_200_OK)
    async def index(self) -> Template:
        return Template(template_name="index.html.j2")


vite = VitePlugin(config=ViteConfig(template_dir='templates/'))
app = Litestar(plugins=[vite], route_handlers=[WebController])

Create a template to serve the application in ./templates/index.html.h2:

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8" />
    <!--IE compatibility-->
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta
      name="viewport"
      content="width=device-width, initial-scale=1.0, maximum-scale=1.0"
    />
  </head>

  <body>
    <div id="app"></div>
    {{ vite_hmr() }} {{ vite('resources/main.ts') }}
  </body>
</html>

Template initialization (Optional)

This is a command to help initialize Vite for your project. This is generally only needed a single time. You may also manually configure Vite and skip this step.

to initialize a Vite configuration:

❯ litestar assets init
Using Litestar app from app:app
Initializing Vite ──────────────────────────────────────────────────────────────────────────────────────────
Do you intend to use Litestar with any SSR framework? [y/n]: n
INFO - 2023-12-11 12:33:41,455 - root - commands - Writing vite.config.ts
INFO - 2023-12-11 12:33:41,456 - root - commands - Writing package.json
INFO - 2023-12-11 12:33:41,456 - root - commands - Writing tsconfig.json

Install Javascript/Typescript Packages

Install the packages required for development:

Note This is equivalent to the the npm install by default. This command is configurable.

❯ litestar assets install
Using Litestar app from app:app
Starting Vite package installation process ──────────────────────────────────────────────────────────────────────────────────────────

added 25 packages, and audited 26 packages in 1s


5 packages are looking for funding
  run `npm fund` for details


found 0 vulnerabilities

Development

To automatically start and stop the Vite instance with the Litestar application, you can enable the use_server_lifespan hooks in the ViteConfig.

Alternately, to start the development server manually, you can run the following

❯ litestar assets serve
Using Litestar app from app:app
Starting Vite build process ───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────

> build
> vite build


vite v5.0.7 building for production...

✓ 0 modules transformed.

Note This is equivalent to the the npm run dev command when hot_reload is enabled. Otherwise it is equivalent to npm run build -- --watch. This command is configurable.

Building for Production

❯ litestar assets build
Using Litestar app from app:app
Starting Vite build process ───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────

> build
> vite build


vite v5.0.7 building for production...

✓ 0 modules transformed.