Sending a direct message

A direct message (DM) channel is a channel that only operates between two users. By design, it cannot have more or less than two users and is meant for private communication. Sending a DM is remarkably similar to sending a message to a channel, as the dm object is almost identical to the channel object.

Consider the following snippet:

slack.on(RTM_EVENTS.MESSAGE, (message) => {
  let user = slack.dataStore.getUserById(message.user)

  if (user && user.is_bot) {
    return;
  }

  let channel = slack.dataStore.getChannelGroupOrDMById(message.channel);

  if (message.text) {
    let msg = message.text.toLowerCase();

    if (/uptime/g.test(msg)) {
      let dm = slack.dataStore.getDMByName(user.name);

      let uptime = process.uptime();

      // get the uptime in hours, minutes and seconds
      let minutes = parseInt(uptime / 60, 10),
          hours = parseInt(minutes / 60, 10),
          seconds = parseInt(uptime - (minutes * 60) - ((hours * 60) *...