[{"_id":ObjectId("609cd99d1af4ac1036d78f7d"),"userrole":"admins","locks":[{"userid":"2932fb99-4c41-4342-99e0-af15f8146da0","useremail":"fsasdev@halliburton.com","filepath":"output/notes.txt"},{"userid":"aa-4c41-4342-99e0-af15f8146da0","useremail":"aa@halliburton.com","filepath":"output/notes1.txt"},{"userid":"cc-4c41-4342-99e0-af15f8146da0","useremail":"s@halliburton.com","filepath":"output/notes2.txt"}]}]

db.collection.find({"locks.filepath":"output/notes.txt"},{"locks.$":1})