Unable to set businesskey in startevent listner

Camunda 7 Topics Discussion & Questions
1

HI,

I am trying to set businesskey in start event form. Below is javascript to set business key.

keyvalue setting as : BK_undefined.

var keyValue;
camForm.on(‘submit’, function(evt) {
var form = $scope.variablesForm;
var variableManager = camForm.variableManager;
inject([ ‘$rootScope’, function($rootScope) {
var xmlhttp = new XMLHttpRequest();
var url = “http://loccahost:8080/seqno?SeqNo=”;
xmlhttp.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
var value= JSON.parse(this.responseText);
keyValue=value;
}
};
xmlhttp.open(“GET”, url, true);
xmlhttp.send();
camForm.businessKey = ‘BK_’+keyValue;
}]);
});

Appriciate your help.

regards,
k

2

What is your error message?

3

Hi Stephen,

Thanks for reply.
The keyValue is coming as undefined.
The businesskey updating as BK_undefined.
The api is returning one sequence number. That number I am able to see in console log.
And it has to be update like BK_123.

4

https://docs.camunda.org/manual/7.8/reference/embedded-forms/controls/#the-cam-business-key-directive

Your directive seems to be wrong.

5

Thanks Stephen.Work only when process creation in the BPM only.

when I have fired from rest api, the businesskey coming as null.

http://localhost:8080/engine-rest/process-definition/key/myprocess/start

{
“links”: [ {
“method”: “GET”,
“href”: “http://localhost:8080/engine-rest/process-instance/f09c1979-47b3-11e8-83a8-54ee75123c48”,
“rel”: “self”
}],
“id”: “f09c1979-47b3-11e8-83a8-54ee75123c48”,
“definitionId”: “myprocess:6:ec170688-47b3-11e8-83a8-54ee75123c48”,
“businessKey”: null,
“caseInstanceId”: null,
“ended”: false,
“suspended”: false,
“tenantId”: null
}

*Script below: For Business key **
/


var keyValue;
camForm.on(‘form-loaded’, function()
{

								inject([ '$rootScope', function($rootScope)
								{ 
									var xmlhttp = new XMLHttpRequest();
									var url = "http://localhost:9091/bugseqno?bugSeqNo=";
									xmlhttp.onreadystatechange = function() {
										if (this.readyState == 4 && this.status == 200) {
										var myArr = JSON.parse(this.responseText);
										keyValue=myArr;
										}
									};
									xmlhttp.open("GET", url, true);
									xmlhttp.send();
									
								}]);
					});		
					camForm.on('submit', function(evt) 
					{
						camForm.businessKey = 'BK_'+keyValue;
					});

					</script>*/