Database
[{"_id":ObjectId("6043adb043707c034d5363b7"),"shopId":"shopid1","appId":"777","shopItems":[{"itemId":1},{"itemId":2}]},{"_id":ObjectId("6043adb043707c034d5363b8"),"shopId":"shopId2","appId":"777","shopItems":[{"itemId":1,},{"itemId":3,}]}]
Query
db.collection.aggregate([{$project:{_id:1,shopId:1,appId:1,shopItems:{$filter:{input:"$shopItems",as:"items",cond:{$in:["$$items.itemId",[1,2]]}}}}}])