Hi @niveditakumari is it from servicenow to servicenow? if yes you can use OOB Attachment API like below,
create rest api and BR on incident table like this
var user = 'aaa';
var password = 'xxx@';
var attachmentRec = new GlideRecord("sys_attachment");
attachmentRec.addQuery('table_name','incident');
attachmentRec.addQuery('table_sys_id',current.table_sys_id);
attachmentRec.query();
gs.log("--> "+attachmentRec.getRowCount());
if (attachmentRec.hasNext()) {
while (attachmentRec.next()) {
var attachmentMessage = new sn_ws.RESTMessageV2();
attachmentMessage.setHttpMethod("post");
attachmentMessage.setBasicAuth(user,password);
attachmentMessage.setEndpoint("https://devxxx.service-now.com/api/now/attachment/file");// other instance end point
attachmentMessage.setQueryParameter("table_name", "incident");
attachmentMessage.setQueryParameter("table_sys_id", attachmentRec.u_test);
attachmentMessage.setQueryParameter("file_name", attachmentRec.file_name);
attachmentMessage.setRequestHeader("Content-Type", attachmentRec.content_type);
attachmentMessage.setRequestHeader("Accept", "application/json");
attachmentMessage.setRequestBodyFromAttachment(attachmentRec.sys_id); // send the attachment as request Body
var response = attachmentMessage.execute();
var responseBody = response.getBody();
gs.log("* responseBody "+ responseBody);
var httpStatus = response.getStatusCode();
gs.log("* atatch "+ httpStatus);
}
}
