Get BinData UUID from Mongo as string

Question

I currently have some ids stored in Mongo as UUIDs (necessary for processing). They get returned like this:

\"_id\" : new BinData(3, \"JliB6gIMRuSphAD2KmhzgQ         


        

Answer 1

Use this function before your query:

function ToGUID(hex) {
    var a = hex.substr(6, 2) + hex.substr(4, 2) + hex.substr(2, 2) + hex.substr(0, 2);
    var b = hex.substr(10, 2) + hex.substr(8, 2);
    var c = hex.substr(14, 2) + hex.substr(12, 2);
    var d = hex.substr(16, 16);
    hex = a + b + c + d;
    var uuid = hex.substr(0, 8) + '-' + hex.substr(8, 4) + '-' + hex.substr(12, 4) + '-' + hex.substr(16, 4) + '-' + hex.substr(20, 12);
    return '"' + uuid + '"';
}

var id = new BinData(3, "JliB6gIMRuSphAD2KmhzgQ==");
ToGUID(id.hex());

Result: "ea815826-0c02-e446-a984-00f62a687381"