1 files changed, 80 insertions, 0 deletions
diff --git a/libs/dynaconf/loaders/json_loader.py b/libs/dynaconf/loaders/json_loader.py
new file mode 100644
index 000000000..72c1e340e
--- /dev/null
+++ b/libs/dynaconf/loaders/json_loader.py
@@ -0,0 +1,80 @@
+from __future__ import annotations
+
+import io
+import json
+from pathlib import Path
+
+from dynaconf import default_settings
+from dynaconf.constants import JSON_EXTENSIONS
+from dynaconf.loaders.base import BaseLoader
+from dynaconf.utils import object_merge
+from dynaconf.utils.parse_conf import try_to_encode
+
+try:  # pragma: no cover
+    import commentjson
+except ImportError:  # pragma: no cover
+    commentjson = None
+
+
+def load(obj, env=None, silent=True, key=None, filename=None):
+    """
+    Reads and loads in to "obj" a single key or all keys from source file.
+
+    :param obj: the settings instance
+    :param env: settings current env default='development'
+    :param silent: if errors should raise
+    :param key: if defined load a single key, else load all in env
+    :param filename: Optional custom filename to load
+    :return: None
+    """
+    if (
+        obj.get("COMMENTJSON_ENABLED_FOR_DYNACONF") and commentjson
+    ):  # pragma: no cover  # noqa
+        file_reader = commentjson.load
+        string_reader = commentjson.loads
+    else:
+        file_reader = json.load
+        string_reader = json.loads
+
+    loader = BaseLoader(
+        obj=obj,
+        env=env,
+        identifier="json",
+        extensions=JSON_EXTENSIONS,
+        file_reader=file_reader,
+        string_reader=string_reader,
+    )
+    loader.load(
+        filename=filename,
+        key=key,
+        silent=silent,
+    )
+
+
+def write(settings_path, settings_data, merge=True):
+    """Write data to a settings file.
+
+    :param settings_path: the filepath
+    :param settings_data: a dictionary with data
+    :param merge: boolean if existing file should be merged with new data
+    """
+    settings_path = Path(settings_path)
+    if settings_path.exists() and merge:  # pragma: no cover
+        with open(
+            str(settings_path), encoding=default_settings.ENCODING_FOR_DYNACONF
+        ) as open_file:
+            object_merge(json.load(open_file), settings_data)
+
+    with open(
+        str(settings_path),
+        "w",
+        encoding=default_settings.ENCODING_FOR_DYNACONF,
+    ) as open_file:
+        json.dump(settings_data, open_file, cls=DynaconfEncoder)
+
+
+class DynaconfEncoder(json.JSONEncoder):
+    """Transform Dynaconf custom types instances to json representation"""
+
+    def default(self, o):
+        return try_to_encode(o, callback=super().default)