A simple Sinatara app to proxy Airbrake webhooks to Google Hangout Chats

README.md

Setup

Uses the hangouts-chat gem

brew install jq
rvm install ruby-2.5.7
rvm gemset create hangouts && rvm gemset use hangouts
bundle install

Testing

Open two terminal sessions. In the first run ruby app.rb -b 0.0.0.0

In the second POST webhook.json to the Sinatra endpoint

curl -s -XPOST -H "Content-Type: application/json" \
  -d @webhook.json \
  "http://localhost:4567/event" | jq

app.rb

#!/usr/bin/env ruby

require 'hangouts_chat'
require 'sinatra'

sender = HangoutsChat::Sender.new 'https://chat.googleapis.com/v1/spaces/SPACE_ID/messages?key=SPACE_KEY&token=SPACE_TOKEN%3D'


post '/event' do
  status 201

  request.body.rewind
  request_payload = JSON.parse(request.body.read)

  header = { title: "#{request_payload['error']['error_message']}",
             subtitle: "#{request_payload['error']['error_class']}" }


  sections = [{ widgets: [{ keyValue: { topLabel: 'File', content: "#{request_payload['error']['file']}:#{request_payload['error']['line_number']}" } },
                          { "buttons": [ { "textButton": {
                            "text": "Open in Airbrake",
                            "onClick": {
                              "openLink": {
                                "url": "#{request_payload['airbrake_error_url']}"
                              }
                            }
                          } } ] } ] 
             }]

  sender.card(header, sections)
end

Gemfile

source 'https://rubygems.org'

gem 'hangouts-chat'
gem 'sinatra'

Gemfile.lock

GEM
  remote: https://rubygems.org/
  specs:
    hangouts-chat (0.0.6)
    mustermann (1.1.1)
      ruby2_keywords (~> 0.0.1)
    rack (2.2.2)
    rack-protection (2.0.8.1)
      rack
    ruby2_keywords (0.0.2)
    sinatra (2.0.8.1)
      mustermann (~> 1.0)
      rack (~> 2.0)
      rack-protection (= 2.0.8.1)
      tilt (~> 2.0)
    tilt (2.0.10)

PLATFORMS
  ruby

DEPENDENCIES
  hangouts-chat
  sinatra

BUNDLED WITH
   1.17.3

sample_nginx.conf

upstream sinatra_app {
  server 0.0.0.0:4567
}

server {
  listen       443 ssl;

  server_name  myserver.name;

  ssl_certificate /etc/ssl/myserver.name.crt;
  ssl_certificate_key /etc/ssl/myserver.name.key;

  ssl_prefer_server_ciphers  on;
  ssl_protocols              TLSv1.2;
  ssl_ciphers                'EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH';
  ssl_session_cache          shared:SSL:10m;
  ssl_session_timeout        10m;
  
  location /event {
    proxy_pass http://sinatra_app;
  }
}

webhook.json

{
  "error":{
    "id":37463546,
    "error_message":"KitchenException: You are all out of bacon!",
    "error_class":"KitchenException",
    "file":"[PROJECT_ROOT]/app/controllers/bacon_controller.rb",
    "line_number":35,
    "project":{
      "id":1111,
      "name":"Baconator"
     },
    "last_notice":{
      "id":4505303522,
      "request_method":null,
      "request_url":"http://airbrake.io:445/bacon/cook",
      "backtrace":[
        "[PROJECT_ROOT]/app/controllers/bacon_controller.rb:35:in `cook'",
        "[PROJECT_ROOT]/app/middleware/kitchen.rb:19:in `oven'",
        "[PROJECT_ROOT]/app/middleware/kitchen.rb:33:in `chef'",
        "[PROJECT_ROOT]/app/middleware/salumi.rb:23:in `store'"
      ]
    },
    "environment":"avocado",
    "first_occurred_at":"2012-02-23T22:03:03Z",
    "last_occurred_at":"2012-03-21T08:37:15Z",
    "times_occurred":118
  },
  "airbrake_error_url": "https://airbrake.io/airbrake-error-url"
}