diff --git a/streaming/index.js b/streaming/index.js
index edfe0cc94b6f6e..b278bdeba2b32d 100644
--- a/streaming/index.js
+++ b/streaming/index.js
@@ -303,6 +303,7 @@ const startServer = async () => {
 
   app.use(httpLogger);
   app.use(cors());
+  app.use(express.json())
 
   // Handle eventsource & other http requests:
   server.on('request', app);