From e4877d18b0ca58333dd3390f846e5e5c5bcb6a26 Mon Sep 17 00:00:00 2001
From: anlicheng <244108715@qq.com>
Date: Wed, 11 Sep 2024 17:38:14 +0800
Subject: [PATCH] fix

---
 apps/iot/src/endpoint/iot_jinzhi_endpoint.erl | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/apps/iot/src/endpoint/iot_jinzhi_endpoint.erl b/apps/iot/src/endpoint/iot_jinzhi_endpoint.erl
index 14c89c9..0299f11 100644
--- a/apps/iot/src/endpoint/iot_jinzhi_endpoint.erl
+++ b/apps/iot/src/endpoint/iot_jinzhi_endpoint.erl
@@ -196,7 +196,8 @@ format_event(LocationCode, DynamicLocationCode, EventType, #{<<"event_code">> :=
                         true ->
                             Len = length(FakeLocationCodes),
                             RandomIndex = rand:uniform(Len),
-                            lists:nth(RandomIndex, FakeLocationCodes);
+                            Code = lists:nth(RandomIndex, FakeLocationCodes),
+                            list_to_binary(Code);
                         false ->
                             LocationCode
                     end,