The docs at http://vertx.io/docs/ http://vertx.io/docs/ are available in different editions depending on what language you use with Vert.x, of which there's 7 a

The docs at http://vertx.io/docs/ http://vertx.io/docs/ are available in different editions depending on what language you use with Vert.x, of which there's 7 available. Besides JavaScript and Kotlin, there's also: Java Apache Groovy Ruby Eclipse Ceylon Scala