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Date A Programmer: open source (Apache License) online dating service built with Ruby On Rails with private/public profiles, chat, admin panel, analytics, matches, tests constructor
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Latest commit e6a472c Feb 22, 2018


Date A Programmer ("Замуж За Программиста") - online dating for programmers with public and private profiles, online chats, tests constructor, email notifications and more. Date A Programmer: Post Mortem (Russian translation is here) Open sourced in January 2016 to help others save time building online dating services.

Technology Stack

  • Ruby On Rails (Ruby Version 2.1.1, Rails Version 4.1.1)
  • HAML (for views)
  • Mandrill (to send emails with notifications, welcome emails, reminders etc )
  • Amazon AWS S3 (to store photo files from profiles)
  • Amazon CloudFront (as CDN for assets)
  • Heroku (hosting the application and separate server for faye chat server)
  • Cloudfront (to cache assets to get high performance of the main application)
  • Postgresql database
  • Faye (for the realtime chat)
  • Puma web server


  • The code is licensed under Apache License 2.00
  • Copyright © 2014-2015 Evgenii Mironichev


Marketing, Emails, Analytics

  • Email Triggers.pdf - templates for 10+ emails (English, Russian) to be sent on triggers like welcome to the website, new unread message for the user, user was asked to open her private profile etc.
  • Actions To Log - Sheet1.pdf - list of events logged and sent to the external analytics systems like Google Analytics and Mixpanel

Getting Started Instruction

Setting up development environment on local machine

  1. clone the repo, install required bundle, copy default files, run migrations and seed data on your local machine,
~/ $ git clone
~/ $ cd dateprog
~/dateprog $ bundle install
~/dateprog $ cp config/application-default.yml config/application.yml
~/dateprog $ cp config/database-default.yml config/database.yml
~/dateprog $ cp gitignore-default .gitignore
~/dateprog $ rake db:create
~/dateprog $ rake db:reset
  1. Now you may run the local server
~/dateprog $ rails s

Note: If you are using Cloud9 IDE then use the following command instead:

~/dateprog $ rails s -b $IP -p $PORT

Default Users

  • admin control panel at http://localhost:3000/admin/login with as login and dateprog as password
  • test users: or or as login and 123456 as default password
  1. Realtime chat server: clone and run your own faye rails server required for the realtime chat
~/dateprog $ cd ..
~/ $ git clone
~/ $ cd dateprogfaye
  • create the application for Faye server on Heroku and deploy the dateprogfaye application to it
~/dateprogfaye $ git push heroku master
  • in the local dateprog folder do the following
    • copy the URL of your Faye server on Heroku from browser (for example
    • paste that URL into the FAYE_ENDPOINT variable in the config/application.yml
  1. Precompile assets for Dateprog application for the production (to run on Heroku):
~/dateprog $ RAILS_ENV=production rake assets:precompile
~/dateprog $ git add .
~/dateprog $ git commit -m "assets were precompiled for the production"

Amazon CloudFront note: if you have CloudFront set up then assets will be fetched from Heroku for the first time but then they will be served from CLOUDFRONT_ENDPOINT. When you are updating assets you may need to reset the cache in the CloudFront control panel. See this article - see "Option 2" for detailed instruction on setting up CloudFront

  1. Create the application on Heroku to deploy the dateprog app into it
  2. Setup the production environment varables for Heroku

The project uses Figaro gem that uses environment variables to store tokens and keys in application.yml. Variables are stored in /config/application.yml that you have to update with your own generated keys and tokens.

~/dateprog $ figaro heroku:set -e production
  1. Finally push the dateprog to the Heroku to run in production
~/dateprog $ git push heroku master
  1. Run the database migration on Heroku and seed the default data
~/dateprog $ heroku run rake db:migrate
~/dateprog $ heroku run rake db:seed
  1. See config/application.yml for tokens and variables you will need to set for use 3rd party services to upload photo, send emails etc
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