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NextJS Template backend for Isomorphic UI development in Django !MIRROR of git.yourlabs.org/oss/djnext!

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Django-NextJS

Isomorphic UI Development with Decorator pattern for Django with:

  • NextJS out of the box experience for perfect frontend development,
  • Django support for NextJS template rendering for perfect backend development,

Run the example project

Run this commands as non root:

git clone https://git.yourlabs.org/oss/djnext
cd djnext  # all commands must be executed from repo root
pip install --user --editable .[dev]
yarn install
djnext djnext  # required for yarn dev to run
yarn dev  # run localhost:3000
djnext dev  # run localhost:8000

The purpose of the example project is to show a create form and a list page with a hardcoded menu. For complete CRUD views, autogenerated menus and so on, use CRUDLFA+.

Install in your project

Install NextJS

In your repo root, install NextJS which means adding these dependencies:

yarn add nextjs react react-dom

And this commands to your package.json:

"scripts": {
  "dev": "next",
  "build": "next build",
  "start": "next start"
}

Then you can run yarn dev.

That was the first step of the NextJS tutorial.

Install DjNext

  • Install djnext with pip for example: pip install --user djnext
  • Then, add urls for /_next: path('_next', include('djnext.urls')),
  • Then add djnext to INSTALLED_APPS.
  • Run manage.py djnext

It will automatically setup the template backend if you haven't yourself. This allows picking up React_ templates in JS from django.

While you run yarn dev, you also need to run the djnext management command to maintain the NextJS pages directory with the static/pages directory of every INSTALLED_APPS.

This will watch static/pages directories of all apps in INSTALLED_APPS, and build the pages/ directory, so that yarn dev will find it.

If you want to setup the template backend yourself and override options you can do as such:

TEMPLATES = [
    {
        'BACKEND': 'djnext.backend.Backend',
        'OPTIONS': {
            'NEXTJS_DSN': 'http://localhost:3000',  # default: from env var
            'context_processors': [
                'djnext_example.artist.context_processors.menu',
            ]
        },
    }
]

The above adds a context processor that will recieve the request as first argument if the django-threadlocals middleware is installed, otherwise None. In return, the context processor function must return a dict that will be merged to the template context before being serialized and sent to the NextJS server.

Tutorial

NextJS template engine

Example project lives in src/djnext_example, see src/djnext_example/artist/urls.py:

CreateView.as_view(
    model=Artist,
    fields=['name'],
    success_url=reverse_lazy('artist_list'),
    template_name='create.js',
)

The template backend queries the NextJS render server, because the djnext command exposed components/*js and pages/*js from your INSTALLED_APPS to NextJS.

Note

For development, you need both yarn dev and manage.py djnext.

Troubbleshooting

Try rm -rf node_modules .next pages && yarn install && manage.py djnext & yarn dev to start the NextJS server from a fresh install.

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