Enviar y recibir mensajes de texto

Product deprecation notice

Effective April 30th, 2026, Vonage In-App Messaging will no longer be available. Access for new users will be closed, and the service will be discontinued for all existing users.

If you have any questions regarding this product’s discontinuation, please contact your account manager or our support team.

Visión general

Esta guía cubre el envío y recepción de mensajes dentro de una conversación.

Antes de empezar, asegúrese de que ha añadido el SDK a su aplicación y eres capaz de crear una conversación.

NOTA: Hay disponible un tutorial paso a paso para crear una aplicación de chat aquí.

Esta guía hará uso de los siguientes conceptos:

Eventos de conversación - message eventos que se disparan en una Conversación, después de ser Miembro

Enviar un mensaje de texto

Dada una conversación de la que ya eres miembro:

conversation.sendMessage({
    "message_type": "text",
    "text": "Hi Vonage!"
}).then((event) => {
    console.log("message was sent", event);
}).catch((error)=>{
    console.error("error sending the message ", error);
});

val messageText = "TEXT TO SEND"
val massage = NexmoMessage.fromText(messageText)

conversation.sendMessage(message, object : NexmoRequestListener<Void> {
    override fun onSuccess(p0: Void?) {
        Log.d("TAG", "Message has been sent")
    }

    override fun onError(apiError: NexmoApiError) {
        Log.d("TAG", "Error: Message not sent ${apiError.message}")
    }
})

String messageText = "TEXT TO SEND";
NexmoMessage massage = NexmoMessage.fromText(messageText);

conversation.sendMessage(message, new NexmoRequestListener<Void>() {
    public void onSuccess(@Nullable Void p0) {
        Log.d("TAG", "Message sent");
    }

    public void onError(@NotNull NexmoApiError apiError) {
        Log.d("TAG", "Error: Message not sent " + apiError.getMessage());
    }
});

let message = NXMMessage(text: "")
conversation.sendMessage(message, completionHandler: { [weak self] (error) in
   ...
})

NXMessage *message = [[NXMMessage alloc] initWithText:@""];
[conversation sendMessage:message completionHandler:^(NSError * _Nullable error) {
    ...
}];

Recibir un mensaje de texto

A message se recibirá cuando un miembro envíe un mensaje de texto a una conversación:

conversation.on('message', (sender, event) => {
    console.log('*** Message received', sender, event) 
});

private val messageListener = object : NexmoMessageEventListener {
    override fun onTypingEvent(typingEvent: NexmoTypingEvent) {}

    override fun onAttachmentEvent(attachmentEvent: NexmoAttachmentEvent) {}

	override fun onMessageEvent(messageEvent: NexmoMessageEvent) {
    	val userName = messageEvent.embeddedInfo.user.name
    	val text = messageEvent.message.text

		Log.d("TAG", "Message received. User $userName : $text")
	}

    override fun onSeenReceipt(seenEvent: NexmoSeenEvent) {}

    override fun onEventDeleted(deletedEvent: NexmoDeletedEvent) {}

    override fun onDeliveredReceipt(deliveredEvent: NexmoDeliveredEvent) {}
}

conversation?.addMessageEventListener(messageListener)

NexmoMessageEventListener messageListener = new NexmoMessageEventListener() {

	@Override
    public void onMessageEvent(@NonNull NexmoMessageEvent messageEvent) {
		String userName = messageEvent.getEmbeddedInfo().getUser().getName();
		String text = messageEvent.getMessage().getText();

		Log.d("TAG", "Message received. User " + userName + " : " + text);
    }

    @Override
    public void onAttachmentEvent(@NonNull NexmoAttachmentEvent attachmentEvent) {}

    @Override
    public void onEventDeleted(@NonNull NexmoDeletedEvent deletedEvent) {}

    @Override
    public void onSeenReceipt(@NonNull NexmoSeenEvent seenEvent) {}

    @Override
    public void onDeliveredReceipt(@NonNull NexmoDeliveredEvent deliveredEvent) {}

    @Override
    public void onTypingEvent(@NonNull NexmoTypingEvent typingEvent) {}
};

conversation.addMessageEventListener(messageListener);

Añadir NXMConversationDelegate como extensión de un ViewController o similar, y aplicar conversation(_ conversation: NXMConversation, didReceive event: NXMMessageEvent):

Nota: El primer método siguiente es necesario cuando se aplica NXMConversationDelegate:

extension ViewController: NXMConversationDelegate {
    func conversation(_ conversation: NXMConversation, didReceive error: Error) {
        NSLog("Conversation error: \(error.localizedDescription)")
    }
    func conversation(_ conversation: NXMConversation, didReceive event: NXMMessageEvent) {
        NSLog("Received message event: \(event.text ?? "")")
    }
}

Tener un ViewControllero similar, se ajustan a NXMConversationDelegate y aplicar conversation:didReceiveMessageEvent::