feat: integrate flask-orjson for improved JSON serialization performance (#23935)

api/core/variables/utils.py

@@ -1,5 +1,7 @@
-import json
 from collections.abc import Iterable, Sequence
+from typing import Any
+
+import orjson
 
 from .segment_group import SegmentGroup
 from .segments import ArrayFileSegment, FileSegment, Segment
@@ -12,15 +14,20 @@ def to_selector(node_id: str, name: str, paths: Iterable[str] = ()) -> Sequence[
     return selectors
 
 
-class SegmentJSONEncoder(json.JSONEncoder):
-    def default(self, o):
-        if isinstance(o, ArrayFileSegment):
-            return [v.model_dump() for v in o.value]
-        elif isinstance(o, FileSegment):
-            return o.value.model_dump()
-        elif isinstance(o, SegmentGroup):
-            return [self.default(seg) for seg in o.value]
-        elif isinstance(o, Segment):
-            return o.value
-        else:
-            super().default(o)
+def segment_orjson_default(o: Any) -> Any:
+    """Default function for orjson serialization of Segment types"""
+    if isinstance(o, ArrayFileSegment):
+        return [v.model_dump() for v in o.value]
+    elif isinstance(o, FileSegment):
+        return o.value.model_dump()
+    elif isinstance(o, SegmentGroup):
+        return [segment_orjson_default(seg) for seg in o.value]
+    elif isinstance(o, Segment):
+        return o.value
+    raise TypeError(f"Object of type {type(o).__name__} is not JSON serializable")
+
+
+def dumps_with_segments(obj: Any, ensure_ascii: bool = False) -> str:
+    """JSON dumps with segment support using orjson"""
+    option = orjson.OPT_NON_STR_KEYS
+    return orjson.dumps(obj, default=segment_orjson_default, option=option).decode("utf-8")