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  • Book Overview & Buying Building Slack Bots
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Building Slack Bots

Building Slack Bots

By : Paul Asjes
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Building Slack Bots

Building Slack Bots

3 (2)
By: Paul Asjes

Overview of this book

Slack promises that its users will "be less busy." Slack bots interact with users in Slack chatrooms, providing useful immediate information, and automating work. This book gives you everything you need to build powerful and useful Slack bots. You’ll see how to hook into the Slack API to create software that can read and post to chatrooms, respond to commands and hints given in natural conversational language, and build fun and useful bots for your own place of work, both as a front end to your own service and to distribute and share as apps. You can even sell your bots and build a business as a Slack bot developer. Throughout the book, you’ll build useful and fun example applications that you can modify for your own situations. These range from simple, fun applications to liven up discussions to useful, data-driven apps to help you make decisions quickly and manage work.
Table of Contents (9 chapters)
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Basic responses

The Slack API can be configured to execute methods once certain events are dispatched, as seen earlier with the RTM_CONNECTION_OPENED event. Now, we will dive into other useful events provided to us.

The authenticated event

So far, we have seen how to add functionality to Slack's RTM_CONNECTION_OPENED event triggered by the bot entering a channel and an error occurring, respectively. If you wish to execute some code when a bot logs in but before it connects to a channel, you can use the AUTHENTICATED event:

slack.on(CLIENT_EVENTS.RTM.AUTHENTICATED, (rtmStartData) => {
  console.log(`Logged in as ${rtmStartData.self.name} of team ${rtmStartData.team.name}, but not yet connected to a channel`);
});

This gives the following output:

[Mon Jan 18 2016 21:37:24 GMT-0500 (EST)] INFO Connecting...
Logged in as awesomebot of team Building Bots, but not yet connected to a channel

Now, we will introduce the message event.

Using the message event

The message event will trigger every...

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