Javascript message after linkedissue

[Sergio _]

Hi community.

I'm trying to show a message after I removed an issuelink from issue view.

I think this line is not correct, anyone can help me with these parameters?

sas_after_removed_link(GH.IssueView, '_removedLinkedIssue'', fn)

---

AJS.$(document).ready(function () {

function sas_afterIssueRendering(e) {
setTimeout(checkMessages, 2000);
setTimeout(checkMessages, 4000);
}

function checkMessages() {
var issue = JIRA.Issue.getIssueKey();
var user = JIRA.Users.LoggedInUser.userName();
fetch(AJS.params.baseURL+"/rest/MYPLUGIN/1.0/Message?issueKey="+issue+"&username="+user+"&delete=true")
.then(function(response) {return response.json();})
.then(function(data) {
for(var i = 0; i < data.length; i++){
var msg = data[i]
switch(msg.type){
case "WARNING":
AJS.flag({type:'warning', body:msg.body});
break;
case "INFO":
AJS.flag({type:'info', body:msg.body});
break;
case "ERROR":
AJS.flag({type:'error', body:msg.body});
break;
case "SUCCESS":
AJS.flag({type:'success', body:msg.body});
break;
}
}
})
}

sas_after_removed_link(GH.IssueView, '_removedLinkedIssue', sas_afterIssueRendering)

function sas_after_removed_link(object, method, fn) {
var originalMethod = object[method];
object[method] = function () {
originalMethod.apply(object, arguments);
fn.call(object);
}
}

document.addEventListener('aui-flag-close', function(event) {
if (event.target.querySelector(".aui-message-warning")) {
location.reload();
}
});

});