CamSDK filterService with expressions

Camunda 7 Topics Discussion & Questions
1

Dear Community,
I currently build an HTML5 application with the camunda-bpm-sdk.js library. To get my tasks I like to use the filterService. This works well if my filter do not use any expresions like ‘${ currentUser() }’ or ‘${ currentUserGroups() }’.

Below the code

var myRestUrl = ‘http://sma0815:8081/engine-rest/’

var camClient = new CamSDK.Client({
mock: false,
apiUri: myRestUrl
});

var filterService = new camClient.resource(‘filter’);

filterService.getTasks({id: ‘5a1b0325-87ea-11ec-986f-005056be7ec1’}, function (err, results) {
console.log(results);
});

referring to the documentation of the source code no parameter of the user id is foreseen.

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I am wondering if it’s technical possible to use the camunda expressions by the Rest API.

Thanks a lot for the help

Michael

2

Hi @michael1,

In your example, you are only running an already created filter with the Id 5a1b0325-87ea-11ec-986f-005056be7ec1.

Expressions such as ${ currentUser() } can only work if authentication for the REST API is enabled as they get evaluated based on the authenticated user used in the API call.

https://docs.camunda.org/manual/7.15/reference/rest/overview/authentication/

3

Hi Hassan,
thanks a lot for your answer! Currently I’ve no rights to change the xml file on our server. I hope for this afternoon to get permission to do that. As soon I’ve activated the REST authentication, how will the user credentials transmitted to the engine?
Best regards

Michael

4

HI Hassan, Now I know how the credentials are transmitted. I’ve updated the web.xml in the engine-rest/WEB_INF/ folder according to your posted manual and it works perfectly now. I receive the ‘Windows Security’ prompt where I insert my camunda account and password. Thanks a lot for your help.

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