app.api.call and buildUrl Filter list of results in v7.6.1

Hello everyone,

I wish to filter my list of results with the function app.api.call().

I know how to filter by Id ( app.api.buildURL('myCustomModule/Id') ) but if I want to filter by another field (custom field psc).

Here is my code of my last attempt (after searching on web) which is not working :

                             var urlc = app.api.buildURL('myCustomModule'), post_data = {psc: '3'};

                             app.api.call('GET', urlc, post_data, {

                                 success: function (data) {

                                     // my logic

                                 }

                             });

Thanks for your answer !

Best regards.