Node.js is an open-source, cross-platform JavaScript run-time environment for executing JavaScript code server-side.
In this article I'll describe how to set up web services and/or REST services using EWD 3.
Since EWD 3 is designed to be modular, you can construct the environment that exactly meets your needs, but for much of the time you'll probably find that the pre-built EWD 3 ewd-xpress super-module does most of what you need because it hooks together all the core EWD 3 and other building-blocks you'll need:
As Rob explained in an earlier post, Caché's Node.js interface allows you to create Web Services and REST Services using the very modular EWD 3 framework.
These services by default return a JSON response with Content-Type: application/json and the response body contains the JSON you return using the finished() method, so:
finished({ test: 'test response' });
returns
{ "test": "test response" }
with a HTTP content-type of application/json