The numbers are impressive for sure. One worry that I have is about how to validate the message received from each of the microservices. We have a json composed of different data types and some amount of nested collections in there as well. With something like Go[1] or Scala[2], we can convert a json or each of the objects inside a collection in the JSON into an object.

1. http://stackoverflow.com/questions/24812933/golang-null-type... 2. http://stackoverflow.com/questions/11889907/how-to-convert-j...