I want to use sendToTopic method to send notification to a topic, How can I add image to the notification?
There is no option such as notification.imageUrl
It can be done like this -
const message: TopicMessage = {
topic: reqData.topic,
data: {
abc: reqData.abc
},
notification: {
title: reqData.title,
body: reqData.body,
imageUrl: reqData.imageUrl
}
};
// messageRes is a message ID string.
const messageRes = await admin.messaging().send(message);