Integration of ViteJS in a Django project.

Project description

Django Vite

Integration of ViteJS in a Django project.

Installation

Django

pip install django-vite

Add django_vite to your INSTALLED_APPS in your settings.py (before your apps that are using it).

INSTALLED_APPS = [
    ...
    'django_vite',
    ...
]

ViteJS

Follow instructions on https://vitejs.dev/guide/. And mostly the SSR part.

Then in your ViteJS config file :

Set the base options the same as your STATIC_URL Django setting.
Set the build.outDir path to where you want the assets to compiled.
Set the build.manifest options to true.
As you are in SSR and not in SPA, you don't have an index.html that ViteJS can use to determine which files to compile. You need to tell it directly. In your ViteJS config file add the following :

export default defineConfig({
  build {
    ...
    rollupOptions: {
      input: {
        <unique key>: '<path to your asset>'
      }
    }
  }
}

Usage

Configuration

Define a setting variable in your settings.py named DJANGO_VITE_ASSETS_PATH containing the absolute path to where your assets are built.
- This must correspond to your build.outDir in your ViteJS configuration.
- The DJANGO_VITE_ASSETS_PATH must be included in your STATICFILES_DIRS Django setting.
Define a setting variable in your settings.py named DJANGO_VITE_DEV_MODE containing a boolean defining if you want to include assets in development mode or production mode.
- In development mode, assets are included as modules using the ViteJS webserver. This will enable HMR for your assets.
- In production mode, assets are included as standard assets (no ViteJS webserver and HMR) like default Django static files. This means that your assets must be compiled with ViteJS before.
- This setting may be set as the same value as your DEBUG setting in Django. But you can do what is good for yout needs.

Template tags

Include this in your base HTML template file.

{% load django_vite %}

Then in your <head> element add this :

{% vite_hmr_client %}

This will add a <script> tag to include the ViteJS HMR client.
This tag will include this script only if DJANGO_VITE_DEV_MODE is true, otherwise this will do nothing.

Then add this tag to load your scripts :

{% vite_asset '<path to your asset>' %}

This will add a <script> tag including your JS/TS script :

In development mode, all scripts are included as modules.
In development mode, all scripts are marked as async and defer.
You can pass a second argument to this tag to overrides attributes passed to the script tag.
This tag only accept JS/TS, for other type of assets, they must be included in the script itself using import statements.
In production mode, the library will read the manifest.json file generated by ViteJS and import all CSS files dependent of this script (before importing the script).
You can add as many of this tag as you want, for each input you specify in your ViteJS configuration file.
The path must be relative to your root key inside your ViteJS config file.
The path must be a key inside your manifest file manifest.json file generated by ViteJS.
In general, this path does not require a / at the beginning (follow your manifest.json file).

{% vite_asset_url '<path to your asset>' %}

This will generate only the URL to an asset with no tag surrounding it. Warning, this does not generate URLs for dependant assets of this one like the previous tag.

Vite Legacy Plugin

If you want to consider legacy browsers that don't support ES6 modules loading you may use @vitejs/plugin-legacy. Django Vite supports this plugin. You must add stuff in complement of other script imports in the <head> tag.

Just before your <body> closing tag add this :

{% vite_legacy_polyfills %}

This tag will do nothing in development, but in production it will loads the polyfills generated by ViteJS.

And so next to this tag you need to add another import to all the scripts you have in the head but the 'legacy' version generated by ViteJS like so :

{% vite_legacy_asset '<path to your asset>' %}

Like the previous tag, this will do nothing in development but in production, Django Vite will add a script tag with a nomodule attribute for legacy browsers. The path to your asset must contain de pattern -legacy in the file name (ex : main-legacy.js).

Miscellaneous configuration

You can redefine those variables in your settings.py :

DJANGO_VITE_DEV_SERVER_PROTOCOL : ViteJS webserver protocol (default : http).
DJANGO_VITE_DEV_SERVER_HOST : ViteJS webserver hostname (default : localhost).
DJANGO_VITE_DEV_SERVER_PORT : ViteJS webserver port (default : 3000)
DJANGO_VITE_WS_CLIENT_URL : ViteJS webserver path to the HMR client used in the vite_hmr_client tag (default : @vite/client).
DJANGO_VITE_MANIFEST_PATH : Absolute path (including filename) to your ViteJS manifest file. This file is generated in your DJANGO_VITE_ASSETS_PATH. But if you are in production (DEBUG is true) then it is in your STATIC_ROOT after you collected your static files.
DJANGO_VITE_LEGACY_POLYFILLS_MOTIF : The motif used to find the assets for polyfills inside the manifest.json (only if you use @vitejs/plugin-legacy).

Notes

In production mode, all generated path are prefixed with the STATIC_URL setting of Django.

Example

If you are struggling on how to setup a project using Django / ViteJS and Django Vite, I've made an example project here.

Thanks

Thanks to Evan You for the ViteJS library.

Project details

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3.0.5

Sep 16, 2024

3.0.4

Apr 7, 2024

3.0.3

Jan 22, 2024

3.0.2

Jan 10, 2024

3.0.1

Dec 1, 2023

3.0.0

Nov 14, 2023

2.1.3

Jun 16, 2023

2.1.2

Jun 2, 2023

2.1.1

Jun 1, 2023

2.1.0

May 25, 2023

2.0.2

Mar 15, 2022

2.0.1

Mar 15, 2022

2.0.0

Mar 14, 2022

1.4.0

Feb 22, 2022

1.3.0

Dec 29, 2021

1.2.1

Sep 27, 2021

This version

1.2

Sep 24, 2021

1.1.1

Aug 30, 2021

1.1.0

Apr 16, 2021

1.0.3

Apr 7, 2021

1.0.2

Apr 6, 2021

1.0.1

Apr 4, 2021

1.0.0

Apr 3, 2021

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