This is a duplicate of this question, which was written in 2010. Now that things may have changed in 2017, I think this is a great opportunity to re-ask the question.
What libraries are needed?
Using org.restlet.jee 2.3.10, I have noticed that there are several libraries which could support JSON. Here are some names from the Maven Repository:
org.restlet.ext.jacksonorg.restlet.ext.jsonorg.restlet.lib.org.restlet.lib.org.jsonorg.restlet.lib.org.json
What is the current recommended / standard way of GET-ing and POST-ing JSON-formatted text?
It seems like: "
org.restlet.JSON". You can see the official tutorial here.