How to ORDER BY FIELD VALUE in MongoDB -

in mysql use field() function in order by clause:

order field(id, '1', '6', '3', ...);

how 1 same results in mongodb? tried following:

.find(...).sort({id: [1, 6, 3]})

this did not work

so record:

given array [1,6,3] want in query this:

db.collection.aggregate([    { "$project": {        "weight": { "$cond": [            { "$eq": ["_id": 1] },            3,             { "$cond": [                { "$eq": ["_id": 6] },                2,                { "$cond": [                    { "$eq": ["_id": 3] },                    1,                    0                ]},            ]},         ]}    }},    { "$sort": { "weight": -1 } } ]) 

and gives specific "weights" order of "array" of inputs "project" weights upon results.