Mentioning users via the REST API
A key need in a team messaging environment is capturing the attention of a person or group within it. When a person is mentioned in a conversation for example, their unread messages in that conversation is highlighted to indicate that a specific message was directed at them. For example:
When a bot needs to mention a user, they use a special markdown syntax to do so:

A bot can also mention an entire team using this markdown syntax:

Within the context of sending a message in Javascript, it might look like this:
const RC = require('@ringcentral/sdk').SDK
require('dotenv').config();
var rcsdk = new RC({
'server': process.env.RC_SERVER_URL,
'clientId': process.env.RC_APP_CLIENT_ID,
'clientSecret': process.env.RC_APP_CLIENT_SECRET
});
var platform = rcsdk.platform();
platform.login({ 'jwt': process.env.RC_USER_JWT })
platform.on(platform.events.loginSuccess, () => {
try {
var personId = "1234";
var groupId = "5678";
await platform.post(`/restapi/v1.0/glip/chats/${groupId}/posts`, {
"text": `Here is a mention: `
})
} catch(e) {
console.log(e)
}
})