ContextInfo Fields : Mention, Quote, Disappearing Message (Expiration)

[mamur-rezeki]

Mentioning Protocol.

// Example ContextInfo for ExtendedTextMessage

var msg = &waProto.Message{
    ExtendedTextMessage: &waProto.ExtendedTextMessage{
      Text:        proto.String("Metioning"),
      ContextInfo: &waProto.ContextInfo{
        MentionedJid: []string{
          event.Info.Sender.ToNonAD().String(),
        },
      },
    },
  }

Quote

var msg = &waProto.Message{
    ExtendedTextMessage: &waProto.ExtendedTextMessage{
      Text:        proto.String("Quote"),
      ContextInfo: &waProto.ContextInfo{
        StanzaId: proto.String(event.Info.ID),
        Participant: proto.String(event.Info.Sender.ToNonAD().String()),
        QuotedMessage: event.Message,
      },
    },
  }

Disappearing Message (Expiration)

var msg = &waProto.Message{
    ExtendedTextMessage: &waProto.ExtendedTextMessage{
      Text:        proto.String("Disappearing"),
      ContextInfo: &waProto.ContextInfo{
      Expiration: proto.Uint32(86400),
      },
    },
  }

[hoehermann]

For me, the disappearing message example does not work as expected. Am I using it right like I do here?

The message is sent and received. However, on the sender the official WhatsApp client says "the receiver updated the message timer". On the receiver it says "you updated the message timer". Somewhere there is a confusion on who set the message timer.

Also, messages do not disappear – neither on the sender device nor on the receiver.
Correction: The messages actually do disappear. I expected them to disappear after 24 hours sharp. That is not the case, apparently. However, after 26 hours the messages are indeed no longer being displayed. Due to this inaccuracy, smaller values such as "15 Minutes" do not seem to work.

[mamur-rezeki]

Maybe if the initial message is sent by us, then we can determine the time rule for the Expiration by ourselves.

However, if the initial message is sent by the client, we can take the value of Expiration field to be used as the standard expiration time for sending the next message.

[defryiquartz]

hey @mamur-rezeki i'm trying to mention the peoples who are mentioned in receiving texts, this is my code. Why is it not working? it's only outputing the text without the mention. Thank you

mentionedJids := evt.Message.ExtendedTextMessage.ContextInfo.MentionedJid

var msg = &waProto.Message{
	ExtendedTextMessage: &waProto.ExtendedTextMessage{
		Text: proto.String("Metioning"),
		ContextInfo: &waProto.ContextInfo{
			MentionedJid: mentionedJids,
		},
	},
}
_, err := client.SendMessage(ctx, evt.Info.Chat, msg)
if err != nil {
	return err
}

return nil

[defryiquartz]

update:
seems like we need to include the @phone into the text as well
example:

msg := &waProto.Message{
	ExtendedTextMessage: &waProto.ExtendedTextMessage{
		Text: proto.String("Metioning @628123456789"),
		ContextInfo: &waProto.ContextInfo{
			MentionedJid: []string{
				"628123456789@s.whatsapp.net",
			},
		},
	},
}
_, err := client.SendMessage(ctx, evt.Info.Chat, msg)
if err != nil {
	return err
}

return nil

[mamur-rezeki]

Yes, exactly.