Adding ability to listen to user types chat messages using WA.onChatMessage

front/src/Api/Events/ChatEvent.ts

@@ -5,4 +5,7 @@ export const isChatEvent =
         message: tg.isString,
         author: tg.isString,
     }).get();
+/**
+ * A message sent from the iFrame to the game to add a message in the chat.
+ */
 export type ChatEvent = tg.GuardedType<typeof isChatEvent>;

front/src/Api/Events/IframeEvent.ts

@@ -1,4 +1,4 @@
-interface IframeEvent {
+export interface IframeEvent {
     type: string;
     data: unknown;
 }

front/src/Api/Events/UserInputChatEvent.ts

@@ -0,0 +1,10 @@
+import * as tg from "generic-type-guard";
+
+export const isUserInputChatEvent =
+    new tg.IsInterface().withProperties({
+        message: tg.isString,
+    }).get();
+/**
+ * A message sent from the game to the iFrame when a user types a message in the chat.
+ */
+export type UserInputChatEvent = tg.GuardedType<typeof isUserInputChatEvent>;