Retrieve Globalvalueset without Object_API_Name and Field_API_Name

Question

We used to retrieve Picklist values in Apex through and object and a field like this :

Schema.DescribeFieldResult F = <Object_API_Name>.<Field_API_Name>.getDescribe();
Schema.sObjectField T = F.getSObjectField();
List<PicklistEntry> entries = T.getDescribe().getPicklistValues()

But now, I want to know if it's possible to retrieve Global Value Set in Apex directly through its name, and without using an Object name and a field name.

Thank You

Answer 1

There is no easy way to do this without using tooling or Metadata API.

Using tooling API you can retrieve it using the below pseudo codee,

String GLOBALVALUESETNAME = 'xyz'; //name of the global valueset you want to retrieve

HttpRequest req = new HttpRequest();
req.setHeader('Authorization', 'Bearer ' + System.userInfo.getSessionID());
req.setHeader('Content-Type', 'application/json');
req.setEndpoint(URL.getSalesforceBaseUrl().toExternalForm()+'/services/data/v50.0/tooling/query/?q=Select+Metadata,Id+FROM+GlobalValueSet+WHERE+DeveloperName=\''+GLOBALVALUESETNAME+'\'');
req.setMethod('GET');
Http request = new Http();
HttpResponse res  = request.send(req);
system.debug(res.getBody());