add deduplication window

streams-events/app/utils.py

@@ -1,6 +1,9 @@
+import decimal
+import json
+import math
+
 import dictdiffer
 from arnparse import arnparse
-from aws_lambda_powertools.shared.json_encoder import Encoder
 
 
 def table_from_arn(arn: str) -> str:
@@ -20,8 +23,18 @@ def diff(first: dict, second: dict) -> list[str]:
     return changed
 
 
-class JSONEncoder(Encoder):
-    def default(self, obj):
-        if isinstance(obj, set):
-            return list(obj)
-        return super(__class__, self).default(obj)
+class JSONEncoder(json.JSONEncoder):
+    def default(self, o):
+        if isinstance(o, decimal.Decimal):
+            if o.is_nan():
+                return math.nan
+
+            if o % 1 != 0:
+                return float(o.quantize(decimal.Decimal('0.00')))
+
+            return int(o)
+
+        if isinstance(o, set):
+            return list(o)
+
+        return super().default(o)