roleassignments
_api/lists/getByTitle('myLList')/items(2)/roleassignments/addroleassignment(principalid=15)},roledefid=1073741826)
break role inheritance
_api/lists/getByTitle('@{triggerBody()?['ListTitle']}')/items(@{int(triggerBody()['ItemId'])})/breakroleinheritance(copyRoleAssignments=false,clearSubscopes=true)
get role assigments ids
/_api/Web/RoleDefinitions?$select=Name,Description,Id
Name Description Id
Full ControlHas full control.1073741829
DesignCan view, add, update, delete, approve, and customize.1073741828
EditCan add, edit and delete lists; can view, add, update and delete list items and documents.1073741830
ContributeCan view, add, update, and delete list items and documents.1073741827
ReadCan view pages and list items and download documents.1073741826
Restricted ViewCan view pages, list items, and documents. Documents can be viewed in the browser but not downloaded.1073741832
Limited AccessCan view specific lists, document libraries, list items, folders, or documents when given permissions.1073741825
System.LimitedViewnull1073741924
System.LimitedEditnull1073741925