Build Your Own Custom SlackBot with Node.js

The article explains how to build a simple Slack bot with Node.js that treats regular channel messages as commands. It uses slack-terminalize to handle message processing, dispatch commands from configuration files, and support custom behavior through separate command modules.

Reading notes

#

• Slack is presented as a good fit for custom integrations because its APIs let developers extend team workflows.
• The tutorial’s goal is to turn a Slack channel into a custom command-line terminal.
• The approach uses slack-terminalize, which wraps message parsing and dispatching.
• It does not use Slash Commands; it interprets normal messages as commands.
• The reader is assumed to know JavaScript, Node.js, and Slack concepts such as teams, channels, bots, and integrations.
• A new bot user is created in Slack, and its API token is copied for use in the app.
• The sample app is cloned and dependencies are installed with npm.
• Configuration files live in config/, and command implementations live in commands/.
• commands.json defines each command with a primary name, aliases, description, help text, exclude flag, and optional endpoint.
• The command filename in commands/ matches the primary command name in commands.json.
• The help command reads command details from commands.json and responds synchronously.
• The gem command shows an asynchronous example by calling a REST endpoint and posting the result back to the same channel.
• New commands are added by defining them in commands.json and creating a matching implementation file.
• Command names with spaces are not supported.
• The command function receives the command name, args, user id, channel id, and the command’s config object.
• slack-terminalize can be configured with options such as autoReconnect and directory paths for config and commands.
• The article closes by encouraging readers to define more commands, fork the project, and use Slack API capabilities for productivity.