Add, Modify resources in WSO2 Governance Registry using Jaggery

The Following piece of code shows how to add a resource(file) to wso2 governance registry and Modify its content.

The quickest (I guess)  way of setting up the environment is creating a jaggery app in wso2 application server.
Download the application server and unzip it in your installs location.
Create a directory in wso2as-<version>/repository/deployment/server/jaggeryapps/
For example reg-test, which is our project name. Inside the directory create the following index.jag

	<%
	var carbon = require('carbon');
	var server = new carbon.server.Server();
	var options = {system: true, domain: carbon.server.tenantDomain() , tenantId: carbon.server.tenantId()};
	var dataStore = new carbon.registry.Registry(server, options);
	var res;
	var mycontent;
	var path = "/_system/governance/sen/hello";
	try {
	res = dataStore.get(path);
	mycontent = res.content;
	var log = new Log();
	mycontent = JSON.parse(mycontent);
	log.info(mycontent);
	log.info(mycontent.a);
	print(typeof mycontent);
	mycontent["c"] = {c1:"1", c2:"2"};
	mycontent["d"] = {d1:"1", d2:"2"};
	//delete mycontent['d'];
	var content = JSON.stringify(mycontent);
	log.info("content is " + content);
	res.content = content;
	dataStore.put(path, res);
	} catch (error) {
	print(error);
	print("<br/>");
	print('Adding new hello file');
	var reg_initial_js = {
	a: {
	a1: "1",
	a2: "2"
	},
	b: {
	b1: "1",
	b2: "2"
	}
	};
	resource = {
	content: JSON.stringify(reg_initial_js)
	};
	dataStore.put(path, resource);
	}
	var regResource = dataStore.get(path);
	print("==============");
	print("<br/>");
	print(regResource.content);
	print("<br/>");
	print("==============");
	%>

view raw registry_resource_content.js hosted with ❤ by GitHub

Start the application server by running 'sh wso2as-<version>/bin/wso2server.sh'
Go to the management console https://localhost:9443/carbon/
In the  application list view you'll see your project name as a jaggery application click on the Go To URL.
On the first time you'll get printed an exception and a resource file will be created under /_system/governance/sen/