Fixed #35859 -- Added background Tasks framework interface.

This work implements what was defined in DEP 14
(https://github.com/django/deps/blob/main/accepted/0014-background-workers.rst).

Thanks to Raphael Gaschignard, Eric Holscher, Ran Benita, Sarah Boyce,
Jacob Walls, and Natalia Bidart for the reviews.

1 files changed, 19 insertions, 0 deletions

diff --git a/django/utils/json.py b/django/utils/json.py
new file mode 100644
index 0000000000..e7389b70ed
--- /dev/null
+++ b/django/utils/json.py
@@ -0,0 +1,19 @@
+from collections.abc import Mapping, Sequence
+
+
+def normalize_json(obj):
+    """Recursively normalize an object into JSON-compatible types."""
+    match obj:
+        case Mapping():
+            return {normalize_json(k): normalize_json(v) for k, v in obj.items()}
+        case bytes():
+            try:
+                return obj.decode("utf-8")
+            except UnicodeDecodeError:
+                raise ValueError(f"Unsupported value: {type(obj)}")
+        case str() | int() | float() | bool() | None:
+            return obj
+        case Sequence():  # str and bytes were already handled.
+            return [normalize_json(v) for v in obj]
+        case _:  # Other types can't be serialized to JSON
+            raise TypeError(f"Unsupported type: {type(obj)}")