A modern programming language that makes developers happier.

kotlinlang

Being able to run a Ktor Server Instance embedded is absolutely delightful for writing integration tests betwen Client and Server.  I can write tests that perform entire end-to-end User Registration/Activation/Login/Operation/Logout workflows.  In the past developing such features has meant a lot of tedious environment wrangling as I build the server and client parts separately.  Now the feedback loop is so tight, it's so much more enjoyable. Big love Ktor :heart:

Another neat thing about ktor is that you can spin up multiple servers listening on different ports in the same jvm instance. Very useful when prototyping new microservice based apps