Ignore and do not decrypt received messages when offline, saving resources and increasing performance

src/Defaults/index.ts

@@ -66,6 +66,7 @@ export const DEFAULT_CONNECTION_CONFIG: SocketConfig = {
 	retryRequestDelayMs: 250,
 	maxMsgRetryCount: 5,
 	fireInitQueries: true,
+	ignoreOfflineMessages: false,
 	auth: undefined as unknown as AuthenticationState,
 	markOnlineOnConnect: true,
 	syncFullHistory: false,

src/Socket/messages-recv.ts

@@ -47,6 +47,7 @@
 		retryRequestDelayMs,
 		maxMsgRetryCount,
 		getMessage,
+		ignoreOfflineMessages,
 		shouldIgnoreJid
 	} = config
 	const sock = makeMessagesSocket(config)
@@ -316,7 +317,7 @@
 
 			break
 		case 'membership_approval_mode':
 			const approvalMode: any = getBinaryNodeChild(child, 'group_join')
 			if(approvalMode) {
 				msg.messageStubType = WAMessageStubType.GROUP_MEMBERSHIP_JOIN_APPROVAL_MODE
 				msg.messageStubParameters = [ approvalMode.attrs.state ]
@@ -693,7 +694,13 @@
 	}
 
 	const handleMessage = async(node: BinaryNode) => {
+		if(ignoreOfflineMessages && node.attrs.offline) {
+			logger.debug({ key: node.attrs.key }, 'ignored offline message')
+			await sendMessageAck(node)
+			return
+		}
+
 		if(shouldIgnoreJid(node.attrs.from!) && node.attrs.from! !== '@s.whatsapp.net') {
 			logger.debug({ key: node.attrs.key }, 'ignored message')
 			await sendMessageAck(node)
 			return

src/Types/Socket.ts

@@ -78,6 +78,8 @@
     linkPreviewImageThumbnailWidth: number
     /** Should Baileys ask the phone for full history, will be received async */
     syncFullHistory: boolean
+    /** Ignore and do not decrypt received messages when offline, default false */
+    ignoreOfflineMessages: boolean
     /** Should baileys fire init queries automatically, default true */
     fireInitQueries: boolean
     /**
@@ -119,5 +121,5 @@
     makeSignalRepository: (auth: SignalAuthState) => SignalRepository
 
     /** Socket passthrough */
     socket?: any
 }