Constructing a REST message body using variable values from screen (form)

[RajanMurkute]

I'm trying to send a POST request with recordless REST messagev2, that is very similar to the example script below -

var restMessage = new sn_ws.RESTMessageV2();
restMessage.setBasicAuth("abc", "efgh");
restMessage.setHttpMethod("post");
restMessage.setEndpoint("http://<instance>.service-now.com/api/now/table/incident");
restMessage.setRequestBody("{\"short_description\" : \"Test incident\"}");
var response = restMessage.execute();

On the UI screen, I have field 'Short Description' (Name= u_shortDescription). 
How do I insert the value of the field 'Short Description' in my script, instead of the string \"Test incident\"?

I want the target to receive the value on the UI. (ie. current.u_shortDescription). 

I tried using following syntax -
var sd = current.u_shortDescription;
restMessage.setRequestBody('{\"short_description\" : \"{{sd}}\" }');
OR
var sd = current.u_shortDescription;
restMessage.setRequestBody('{\"short_description\" : \"$(sd)\" }');

But none of the above works. The POST requests inserts a record on the target table, but the field 'short_description' is left blank.
Can someone please help with the correct syntax?

[Harsh Vardhan]

where are you using the script ? in business rule ? 

adding one article here, kindly have a look. it has mentioned steps to use post method to create record in target instance. 

https://community.servicenow.com/community?id=community_article&sys_id=ad8ad908dbdc7b44a39a0b55ca961...

[Tony Chatfield1]

Hi, I suspect you need to maintain the existing syntax of the string, maybe try something like \'"' myvariable '\"' to encapsulate the text you don't include in your var

[Harsh Vardhan]

you can try something like this. It has tested. 

(function executeRule(current, previous /*null when async*/) {

	// Add your code here

	var sh_desc = current.short_description; // fetching your short description 
	var desc = current.description; //  fetching your short description 
	var restMessage = new sn_ws.RESTMessageV2();
	restMessage.setBasicAuth("abc", "efgh");
	restMessage.setHttpMethod("post");
	restMessage.setEndpoint("http://<instance>.service-now.com/api/now/table/incident");

	restMessage.setRequestBody('{"short_description":"'+sh_desc+'",' +
							   '"description":"'+desc+'"}');
	var response = restMessage.execute();

})(current, previous);

[RajanMurkute]

Thanks, Harshvardhan.

yes, I am using  a Business Rule, that runs after the record is inserted in the target table (a non-ServiceNow instance).

But the statement (copied from your script example)-

restMessage.setRequestBody('{"short_description":"'+sh_desc+'",' +
							   '"description":"'+desc+'"}');

gives error. (It does not let me save the script, stating 'Unclosed string'). Looks like there is some mix-up of double and single quotes.

Also I read the article at the link you sent. That article too, is useful for SN to SN integration. In my case my target instance is not a ServiceNow instance. Therefore I am trying to use RESTmMessageV2(), and not RESTMessageV2(<message name>, <method>).