How to serve a Flutter web app with Django?

python django flutter flutter-web

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After running the command, copy the build\web directory from the flutter project to your django project. Let's say you put it at the root and renamed it to flutter_web_app.

So we have,

djangoproject
  | djangoproject
       | settings.py
       | urls.py
       | ...
  | flutter_web_app
  | ... 
  | other apps

Now edit the base tag in flutter_web_app/index.html to give the application a prefix. Note that the prefix/base should start and end with a /.

<head>
...

    <base href="/flutter_web_app/">

...
</head>

Now, in your djangoproject/urls.py, match the prefix and serve your flutter application.

from django.urls import path
from django.views.static import serve
import os

BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
FLUTTER_WEB_APP = os.path.join(BASE_DIR, 'flutter_web_app')

def flutter_redirect(request, resource):
    return serve(request, resource, FLUTTER_WEB_APP)

urlpatterns = [
    ...
    path('flutter_web_app/', lambda r: flutter_redirect(r, 'index.html')),
    path('flutter_web_app/<path:resource>', flutter_redirect),
]

Running this locally, url 127.0.0.1/flutter_web_app will serve our flutter_web_app/index.html.

All the files required by the flutter application are prefixed with flutter_web_app. For eg. main.dart.js is requested with a GET to flutter_web_app/main.dart.js. We extract the path after the prefix as resource and serve the corresponding file from flutter_web_app directory (flutter_redirect function).

1,943

Author by

Pirmin

Updated on December 20, 2022

Comments

Pirmin over 1 year
After building a flutter web app with
```
flutter build web
```
I want to serve the app using a simple Django server. How can I do that?