Metadata API ServiceController

Question

Is there a way other than using mdapi wrapper (ServiceController) to e.g. retrieve, update and deploy back some particular (let's say PermissionSets or Profiles) entities inside the one given org. We don't need some ideal or one-for-all class like that one

Answer 1

As long as your org is configured to allow this, you can access the metadata API directly. For example, you can use the readMetadata and updateMetadata calls directly, which are synchronous calls. Also, some types of profile metadata are directly accessible inside Apex, for example, SetupEntityAccess allows you to add or remove classes, pages, etc to a profile or permission set. You can also use ObjectPermissions and FieldPermissions to add/remove/modify permissions for a particular field for a particular profile or permission set, PermissionSetAssignment for assignments, and PermissionSetGroupComponent to work with Permission Set Groups.