func sendDataMessage()

in AmazonChimeSDKDemo/AmazonChimeSDKDemo/MeetingModel.swift [257:280]


    func sendDataMessage(_ message: String) {
        do {
            try currentMeetingSession
                .audioVideo
                .realtimeSendDataMessage(topic: "chat",
                                         data: message,
                                         lifetimeMs: 1000)
        } catch {
            logger.error(msg: "Failed to send message!")
            return
        }

        let currentTimestamp = NSDate().timeIntervalSince1970
        let timestamp = TimeStampConversion.formatTimestamp(timestamp: Int64(currentTimestamp) * 1000)

        chatModel
            .addChatMessage(chatMessage:
                ChatMessage(
                    senderName: self.selfName,
                    message: message,
                    timestamp: timestamp,
                    isSelf: true
                ))
    }