diff --git a/wwwroot/test_pricing_program.dspy b/wwwroot/test_pricing_program.dspy
index 3b40a6b..94b6b8f 100644
--- a/wwwroot/test_pricing_program.dspy
+++ b/wwwroot/test_pricing_program.dspy
@@ -1,6 +1,8 @@
 ppid = params_kw.ppid
 data = params_kw.data
 try:
+	if isinstance(data, str):
+		data = json.loads(data)
 	x = await buffered_charging(ppid, data)
 	return {
 		"status": "ok",