Add useful WSGI middleware defaults to simpliy setup and development

Author: codingjoe

README.md

@@ -47,12 +47,7 @@ BASE_DIR = pathlib.Path(__file__).parent.parent
 
 os.environ.setdefault("DJANGO_SETTINGS_MODULE", "myproject.settings")
 
-application = get_wsgi_application()
-application = ESM(
-    application,
-    root=BASE_DIR / "staticfiles" / "esm",
-    prefix="esm",
-)
+application = ESM(get_wsgi_application())
 ```
 
 Finally, add the import map to your base template:

django_esm/templatetags/esm.py

@@ -37,10 +37,12 @@ def _resolve_importmap_urls(raw_importmap):
 @register.simple_tag
 def importmap():
     global importmap_json
+    print(not importmap_json or settings.DEBUG)
     if not importmap_json or settings.DEBUG:
         with (
             pathlib.Path(conf.get_settings().STATIC_DIR) / "importmap.json"
         ).open() as f:
             raw_importmap = json.load(f)
             importmap_json = _resolve_importmap_urls(raw_importmap)
+        print(importmap_json)
     return mark_safe(importmap_json)  # nosec

django_esm/wsgi.py

@@ -2,5 +2,20 @@
 
 
 class ESM(WhiteNoise):
+    """Lightweight WSGI ES module loader based on whitenoise."""
+
     def immutable_file_test(self, path, url):
         return True
+
+    def __init__(self, *args, **kwargs):
+        from django.conf import settings  # noqa: F401
+
+        super().__init__(
+            *args,
+            **{
+                "root": settings.BASE_DIR / "staticfiles" / "esm",
+                "prefix": "esm",
+                "autorefresh": settings.DEBUG,
+            }
+            | kwargs,
+        )