salomvary / exprezz

A proof-of concept JavaScript HTTP client and server running on Java 8 Nashorn engine built on Finagle

Exprezz

A proof-of concept JavaScript HTTP client and server running on Java 8 Nashorn engine built on Finagle.

Anatomy

• A minimalistic JavaScript HTTP server (which is a client the same time) consuming nodejs-like API's.
• Nodejs-like server implemented in Scala backed by Finagle.
• Nodejs-like client.
• "Main" class.

Running

You will need Oracle Java 8.

$ ./sbt run
[info] Running com.exprezz.Application
Nov 27, 2014 7:50:35 PM com.twitter.finagle.Init$ apply
INFO: Finagle version 6.22.0 (rev=452c248f9e5bb71d13c48b90bb2e300f6e4fbf61) built at 20141013-200514
Server running at http://localhost:9101

$ curl http://localhost:9101/berlin
{
 "weather": "Mostly Cloudy",
 "sunset": "3:58 pm"
}

Is this REAL?

It's just a playground, I'm not planning to create a real framwework. But you get the idea...

FAQ

How about thread safety?

As neither Nashorn nor Finagle guarantee against concurrent re-entry to the JavaScript context, things might easily go wrong. Treating shared JavaScript variables as immutable should prevent most of the problems. More about Nashorn thread safety.

How do I specify Java version?

Do this on mac: JAVA_HOME=`/usr/libexec/java_home -v 1.8` ./sbt run