An AWS lambda slack webhook relay (make sure to change the path to your actual slack webhook URL

lambda slack relay

var https = require('https');

exports.handler = (event, context, callback) => {
    
    console.log("MYLOG" + JSON.stringify(event))
    
    //Custom Fields sent in from Distilio
    var body = JSON.parse(event.body)
    var name = body.name
    var uri = body.uri
    var text = body.text.substring(0, 120) //Don't want all the data
    
    var post_data = JSON.stringify({
        "username": "Distil.io",
        "icon_emoji":":distillio:",
        "channel": "#distillio",
        "attachments": [
            {
                "color": "danger",
                "fields": [
                    {
                        "title": name + " Website Changed!",
                        "value": "uri: " + uri 
                               + "\nbody: " + text,
                        "short": false
                    }
                ]
            }
        ]
    });
  
    // An object of options to indicate where to post to
    var post_options = {
      host: 'hooks.slack.com',
      port: '443',
      path: '/services/YOURWEBHOOKHERE',
      method: 'POST',
      headers: {
          'Content-Type': 'application/json',
          'Content-Length': Buffer.byteLength(post_data)
      }
    };
    
    // Set up the request
    var post_req = https.request(post_options, function(res) {
      res.setEncoding('utf8');
      res.on('data', function (chunk) {
          console.log('Response: ' + chunk);
      });
    });
    
    // post the data
    post_req.write(post_data);
    post_req.end();
    
    
    var details = {
        "status": "OK"
    }
    
    var response = {
        'statusCode': 200,
        'headers': { 'Content-Type': 'application/json' },
        'body': JSON.stringify(details)
    }
    console.log("LOG:: " + JSON.stringify(response))
    
    callback(null, response);
};