SharePoint Online - Issue with REST API call on a List exceeded the threshold limit

Nagarajan_M 

You need to use Pagingation to get more items that 5000. Here is a JS snippet that should do it for you

var url = _spPageContextInfo.webAbsoluteUrl + "/_api/web/lists/getbytitle('Announcements')/items?$top=5000";
    var response = response || [];  // this variable is used for storing list items
    function GetListItems(){
        return $.ajax({
            url: url,  
            method: "GET",  
            headers: {  
                "Accept": "application/json; odata=verbose"  
            },
            success: function(data){
                response = response.concat(data.d.results);
                if (data.d.__next) {
                    url = data.d.__next;
                    GetListItems();
                }
                $.each(response, function(index, item) {
                    arrayListItem[index] = item;
                });
            },
            error: function(error){
            }
        });
    }