Merge pull request #8949 from JimMoen/fix-mqtt-bridge-payload

fix: mqtt bridge payload default value
emqx · Sep 14, 2022 · 122a5b4 · 122a5b4
2 parents ef467c4 + b5bf5d3
commit 122a5b4
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diff --git a/CHANGES-5.0.md b/CHANGES-5.0.md
@@ -13,6 +13,7 @@
 * Fix that redis authn will deny the unknown users [#8934](https://github.com/emqx/emqx/pull/8934)
 * Fix ExProto UDP client keepalive checking error.
   This causes the clients to not expire as long as a new UDP packet arrives [#8866](https://github.com/emqx/emqx/pull/8866)
+* Fix that MQTT Bridge message payload could be empty string. [#8949](https://github.com/emqx/emqx/pull/8949)
 
 ## Enhancements
 

diff --git a/apps/emqx_connector/src/mqtt/emqx_connector_mqtt_schema.erl b/apps/emqx_connector/src/mqtt/emqx_connector_mqtt_schema.erl
@@ -177,7 +177,7 @@ fields("ingress") ->
             sc(
                 binary(),
                 #{
-                    default => <<"${payload}">>,
+                    default => undefined,
                     desc => ?DESC("payload")
                 }
             )}
@@ -224,7 +224,7 @@ fields("egress") ->
             sc(
                 binary(),
                 #{
-                    default => <<"${payload}">>,
+                    default => undefined,
                     desc => ?DESC("payload")
                 }
             )}