[{"id":"13c89820-11b8-11eb-be9c-55b4d0e5740f","exchangeRate":1,"currency":"NTD","order":[50,50,200,0],"totalPay":3700,"userName":"abc","userId":"12345678","time":"2020-10-18 11:07:03",},{"id":"13c89fsf-11fsxz-11eb-bfsc-222sb4d0e5740f","exchangeRate":1,"currency":"NTD","order":[50,50,200,0],"totalPay":2000,"userName":"def","userId":"12345679","time":"2020-10-15 10:21:00",}]

db.collection.aggregate([{"$match":{"id":"13c89820-11b8-11eb-be9c-55b4d0e5740f"},},{"$unwind":"$order",},{"$group":{_id:{id:"$id",currency:"$currency",totalPay:"$totalPay",},totalOrder:{"$sum":"$order"},},}])