Angular serve working, Angular build not updating files
I'm running a project with an Angular front-end and a Django back-end. Today when I changed some code in the templates the ng build didn't update. I have discovered that it neither updates template changes nor component changes. However, when I run ng serve instead and go to 127.0.0.1:4200 instead of the Django port 8000 the new updates versions are rendered.
The way I have it set up is that I have a template that Django points to with TemplateViev :
{% load static %}
{% csrf_token %}
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>AngularWebapp</title>
<base href="/">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="icon" type="image/x-icon" href="favicon.ico">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
</head>
<body>
<app-root></app-root>
{% block javascript %}
<script type="text/javascript" src="{% static 'runtime.js' %}"></script><script type="text/javascript" src="{% static 'polyfills.js' %}"></script><script type="text/javascript" src="{% static 'styles.js' %}"></script><script type="text/javascript" src="{% static 'vendor.js' %}"></script><script type="text/javascript" src="{% static 'main.js' %}"></script>
<script src="https://code.jquery.com/jquery-2.2.4.min.js" integrity="sha256-BbhdlvQf/xTY9gja0Dq3HiwQF8LaCRTXxZKRutelT44=" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
{% endblock %}
</body>
</html>
And the static directory layout looks like this in settings.py:
STATIC_URL = '/static/'
STATICFILES_DIRS = [
os.path.join(BASE_DIR, 'angular', 'static'),
os.path.join(BASE_DIR, 'angular-webapp', 'dist', 'angular-webapp'),
]
STATIC_ROOT = os.path.join(BASE_DIR, 'static')
And urls.py:
from django.contrib import admin
from django.urls import path, re_path, include
from django.views.generic import TemplateView
from rest_framework import routers
from authentication.views import AccountViewSet, LoginView
from django.contrib.staticfiles.urls import staticfiles_urlpatterns
from django.contrib.staticfiles import views
router=routers.SimpleRouter()
router.register('accounts', AccountViewSet)
class IndexView(TemplateView):
template_name = 'index.html'
urlpatterns = [
path('admin/', admin.site.urls),
path('api/v1/', include(router.urls)),
re_path(r'^api/v1/auth/login/$', LoginView.as_view(), name='login'),
re_path(r'^.*/$', IndexView.as_view()),
path('', IndexView.as_view()),
]
Which is the only place I have static files, and which is where the files from ng build is put, IE. the static load loads the runtime.js etc. from the folder where it's output when i ng build.
However, from yesterday the changes I make to my app in the angular-webapp/src/app folder doesn't get updated when I ng build. I have tried removing the dist folder to create a fresh one, but that doesn't change anything. When it comes back and I run the project it still somehow uses the old layout while ng serve works perfectly.
Is it something about how ng build works that I am missing?
Answer
It's probably a cache busting issue : your files still have the same name, and since they're cached by the browser, it doesn't reload them.
consider building with the --prod flag, which contains several other flags such as --aot, but to correct your issue, try building with --output-hashing=all.
Directly from ng build --help :
--output-hashing=none|all|media|bundles
(String) Define the output filename cache-busting hashing mode.
aliases: -oh <value>, --outputHashing <value>