[{request:false,key:"00001",amount:17,__v:0},{request:false,_id:"5f536fb1b05c47f7d87acb8d",key:"251919732052",amount:41,__v:0},{request:false,_id:"5f536fb1b05c47f7d87acb8e",key:"00002",amount:29,__v:0},{request:false,_id:"5f536fb1b05c47f7d87acb8f",key:"00001",amount:312,__v:0},{request:true,_id:"5f536fb1b05c47f7d87acb90",key:"00002",amount:120,__v:0}]

db.collection.aggregate([{$group:{_id:"$key",request:{$push:"$request"},count:{$sum:1},amount:{$sum:"$amount"}}},{$match:{$expr:{$eq:[false,{$anyElementTrue:"$request"}]}}}])