add subscribe

src/app/home/home.page.ts

@@ -107,8 +107,16 @@ export class HomePage implements OnInit {
       }).then((message)=>{
         // alert('login')
         console.log('rocket chat login successfully', message)
-        this.RocketChatClientService.getRooms().then((rooms)=>{
+        this.RocketChatClientService.getRooms().then((rooms: any)=>{
           console.log('rooms', rooms)
+
+          rooms.result.update.forEach((room:any) => {
+            console.log('room', room)
+            this.RocketChatClientService.subscribe(room.lastMessage.rid).then((subscription)=>{
+              console.log('subscription', subscription)
+            })
+          });
+
         })
       }).catch((message)=>{
         console.log('rocket chat login failed', message)