penambahan fungsi default render json buat date

opensipkd/tools/api.py

@@ -3,7 +3,7 @@ import hashlib
 import hmac
 import json
 import sys
-from datetime import datetime
+from datetime import datetime, date
 
 import requests
 from pyramid_rpc.jsonrpc import JsonRpcError
@@ -346,3 +346,9 @@ def send_rpc(auth, message):
 ##############################
 lima_menit = 300
 
+def json_serial(obj):
+    """JSON serializer for objects not serializable by default json code"""
+
+    if isinstance(obj, (datetime, date)):
+        return obj.isoformat()
+    raise TypeError ("Type %s not serializable" % type(obj))
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