This guide is designed to help developers of all skill levels learn how to build and deploy applications on Heroku. It covers topics such as setting up your development environment, creating a Heroku account, deploying your application, and troubleshooting common issues
Heroku is a cloud platform as a service (PaaS) supporting several programming languages. As one of the first cloud platforms, Heroku has been in development since June 2007, when it supported only the Ruby programming language, but now also supports Java, Node.js, Scala, Clojure, Python, PHP, and Go. For this reason, Heroku is said to be a polyglot platform as it has features for a developer to build, run and scale applications in a similar manner across most of these languages. Heroku was acquired by Salesforce in 2010 for $212 million.