Mongodb $sample after filtering -


let's want person find people they're not connected with, do:

user.find({ _id: { $nin: req.user.connections })

however, want retrieve @ 10 random documents return. in mongodb, there $sample:

{ $sample: { size: <positive integer> } }

i've never used mongo before, i'm unsure of how chain these 2 in order me retrieve 10 random people current user unconnected to.

$sample aggregation operator, need create aggregate pipeline chains 2 operations together:

user.aggregate([     { $match: { _id: { $nin: req.user.connections } } },     { $sample: { size: 10 } } ])

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