Create remote links to a JIRA issue on another JIRA server

[Ambica Seshasayee]

I am trying to create a remotelink on a JIRA server 1 to a JIRA issue on another JIRA server 2

Ex: Local issue: Local Issue on JIRA 1: LOCAL-1

Remote issue on JIRA2: REMOTE-1

REST call: POST http://<JIRA1>/jira/rest/api/latest/issue/LOCAL-1/remotelink 

The following REST post data is used:{
"globalId": "appId=<JIRA2 Application ID>&issueId=REMOTE-1",
"application": {
"type": "com.atlassian.jira",
"name": "JIRA2"
},
"relationship":"duplicates",
"object": {
"url":"<JIRA2/jira/browse/REMOTE-1",
"title":"REMOTE-1"
}
}

The Remote link was created. However, the link details "Failed to load" with a spinning wheel perhaps making an ajax call. 

However, if I send the issueId as the issue id of the remote issue itself, it is working.

{
"globalId": "appId=<JIRA2 Application ID>&issueId=7417404",
"application": {
"type": "com.atlassian.jira",
"name": "JIRA2"
},
"relationship":"duplicates",
"object": {
"url":"<JIRA2/jira/browse/REMOTE-1",
"title":"REMOTE-1"
}
}

works properly like a remote issue link created on the JIRA UI. 

Can I get some help on this please? I have only the issueKey and would want to avoid making a REST call for issueid given the issueKey. IS it possible to send the issuekey and get the remote link created?

Secondly, I am unable to get a reciprocal link created (like the way it is on UI) such that REMOTE-1 can have a reverselink to LOCAL-1.

Thanks,

Ambica