For the document below

{ "_id":ObjectId("5e00841f03d2a48f209b0905"), "uID":\{"ABC"}

,

"units":[{"locID":"11","size":"small","accessible":true,"enabled":true,"reserved":false,"occupied":false},
{"locID":"13","size":"medium","accessible":true,"enabled":true,"reserved":false,"occupied":false},
{"locID":"15","size":"large","accessible":true,"enabled":true,"reserved":false,"occupied":false}]
}

when I try to filter based on uID and units.locID I'm getting any documents

Here is the filter and option

 
filter: = bson.D{{"$and", bson.A{bson.D{{"uID", "ABC"}, {"units.locID", "11"}}}}}
opts := options.FindOne().SetProjection(bson.D{

{"_id", 0}

, {"units", 1}})
 

I've tried this which gives back all units

filter: = bson.D{

{"uID", "ABC"}

, {"units.locID", "11"}} 

I want to get the unit which has  uID = ABC and locID = 11