lambda-slack.js

const request = require('request')
const moment = require('moment-timezone')

exports.handler = function(event, context, callback) {
  const SLACK_CHANNEL = process.env.SLACK_CHANNEL
  const channel = SLACK_CHANNEL
  const icon_emoji = ':robot_face:'
  const username = 'stokebot'
  const fallback = 'Required plain-text summary!'
  const color = '#36a64f'
  const pretext = 'Optional text that appears above the attachment block!!!'
  const author_name = 'Bobby D. Tables'
  const author_link = 'http://flickr.com/bobby/'
  const title = 'Slack API Documentation'
  const title_link = 'https://api.slack.com/'
  const text = 'Optional text that appears within the attachment'
  const image_url = 'http://my-website.com/path/to/image.jpg'
  const thumb_url = 'http://example.com/path/to/thumb.png'
  const footer = 'Slack API'
  const footer_icon = 'https://platform.slack-edge.com/img/default_application_icon.png'
  const ts = moment().unix()
  const priority = {
    title: 'Priority',
    value: 'High',
    short: true,
  }
  const status = {
    title: 'Status',
    value: 'Open',
    short: true,
  }
  const fields = [
    priority,
    status,
  ]
  const callback_id = 'foobar'

  const attachments = [{
    fallback,
    color,
    pretext,
    author_name,
    author_link,
    title,
    title_link,
    text,
    image_url,
    thumb_url,
    footer,
    footer_icon,
    ts,
    fields,
  }]
  const json = {
    attachments,
    channel,
    icon_emoji,
    username,
  }

  // build the options
  const SLACK_WEB_HOOK_URL = process.env.SLACK_WEB_HOOK_URL
  const uri = SLACK_WEB_HOOK_URL
  const method = 'POST'
  const options = {
    uri,
    method,
    json,
  }

  request.post(options, (err, response, body) => {
    return callback(null, {
      statusCode: '200',
      body: 'foo bar',
      headers: { 'Content-Type': 'application/json' },
    })
  })
}

// errs out with:
// {
//  "errorMessage": "2017-06-23T19:43:26.155Z 33228baa-584c-11e7-90a6-4964d19fb68f Task timed out after 10.00 seconds"
// }