support JSON.MERGE Command

2 files changed, 23 insertions, 0 deletions

diff --git a/redis/commands/json/__init__.py b/redis/commands/json/__init__.py
index 7d55023..77fb21c 100644
--- a/redis/commands/json/__init__.py
+++ b/redis/commands/json/__init__.py
@@ -38,6 +38,7 @@ class JSON(JSONCommands):
             "JSON.GET": self._decode,
             "JSON.MGET": bulk_of_jsons(self._decode),
             "JSON.SET": lambda r: r and nativestr(r) == "OK",
+            "JSON.MERGE": lambda r: r and nativestr(r) == "OK",
             "JSON.NUMINCRBY": self._decode,
             "JSON.NUMMULTBY": self._decode,
             "JSON.TOGGLE": self._decode,
diff --git a/redis/commands/json/commands.py b/redis/commands/json/commands.py
index c02c47a..5da9245 100644
--- a/redis/commands/json/commands.py
+++ b/redis/commands/json/commands.py
@@ -253,6 +253,28 @@ class JSONCommands:
             pieces.append("XX")
         return self.execute_command("JSON.SET", *pieces)
 
+    def merge(
+        self,
+        name: str,
+        path: str,
+        obj: JsonType,
+        decode_keys: Optional[bool] = False,
+    ) -> Optional[str]:
+        """
+        Sets or updates the JSON value at a path..
+
+        ``decode_keys`` If set to True, the keys of ``obj`` will be decoded
+        with utf-8.
+
+        For more information see `JSON.MERGE <https://redis.io/commands/json.merge>`_.
+        """
+        if decode_keys:
+            obj = decode_dict_keys(obj)
+
+        pieces = [name, str(path), self._encode(obj)]
+
+        return self.execute_command("JSON.MERGE", *pieces)
+
     def set_file(
         self,
         name: str,