Do not fail if a chat message is malformed

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 - Test: Upgrade nim-waku node to v0.4.
 - Waku Light Push upgraded to `2.0.0-beta1`.
+- Examples (web chat): Catch error if chat message decoding fails.
 
 ## [0.6.0] - 2021-06-09
 

examples/web-chat/src/Message.ts

@@ -12,10 +12,18 @@ export class Message {
 
   static fromWakuMessage(wakuMsg: WakuMessage): Message | undefined {
     if (wakuMsg.payload) {
+      try {
         const chatMsg = ChatMessage.decode(wakuMsg.payload);
         if (chatMsg) {
           return new Message(chatMsg, wakuMsg.timestamp);
         }
+      } catch (e) {
+        console.error(
+          'Failed to decode chat message',
+          wakuMsg.payloadAsUtf8,
+          e
+        );
+      }
     }
     return;
   }