Slack Micro Client

This is a zero dependency node.js client for Slack's Web API

The goal of this project was to build a node.js client that can be dropped into serverless functions without requiring a massive dependency tree. This client covers two main scenarios: making requests and handling responses.

Install

npm i slack-micro --save

Requests

Usage

slack('method name or url', {payload}) // returns a promise

Examples

let slack = require('slack-micro');

let message = {
  unfurl_links: true,
  channel: 'C1QD223DS1',
  token: 'xoxb-12345678900-ABCD1234567890',
  text: "I am a test message http://slack.com",
  attachments: [{
    text: "And here's an attachment!"
  }]
}

// send message to any Slack endpoint
slack('chat.postMessage', message).then(response => {
  // Success!
});

// respond to webhooks
slack('https://hooks.slack.com/services/T0000/B000/XXXX', message);

Defaults

let slack = require('slack-micro');

slack.defaults = {
  unfurl_links: true,
  channel: 'C1QD223DS1',
  token: 'xoxb-12345678900-ABCD1234567890'  
};

let message = {
  text: "I am a test message http://slack.com",
  attachments: [{
    text: "And here's an attachment!"
  }]
};

// send message to any Slack endpoint
slack('chat.postMessage', message);

Responses

Usage

// event handler
slack.on('event name', [... 'event name',] callback)

// http server
slack.listen(port, 'path') // return http server

// digester
slack.digest('JSON string' or {message})

Examples

let slack = require('slack-micro');

slack.on('/test', message => {
  // handle the "/test" slash commands
});

slack.on('slash_commands', message => {
  // handle all slash commands
});

slack.on('googlebot', message => {
  // handle the outgoing webhooks trigger word "googlebot"
});

slack.on('googlebot', '/test', 'slash_commands', message => {
  // handle multiple events
});

slack.on('*', message => {
  // wildcard support
});

// Simple WebServer
slack.listen(3000, '/slack/incoming');


// AWS Lambda handler
exports.handler = (event, context, callback) => {
  slack.digest(event.body); // parses the body  
}

RTM

let slack = require('slack-micro'),
    WebSocket = require('ws'),
    rtm = null;

slack.defaults = {
  token: 'xoxb-12345678900-ABCD1234567890'
};

slack('rtm.start').then(data => {    
  rtm = new WebSocket(data.url);
  rtm.on('message', slack.digest);
});

slack.on('*', message => {
  // watch for any RTM event
});