mongodb - Get newly inserted document BSONObjectID -

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i need return newly inserted object. read can generate own id that's not case.

def create(repo: string) = action.async(parse.json) { implicit req =>     val id = bsonobjectid.generate     collection(repo).insert($("_id " -> id)).map { last =>       if(last.ok)         ok(json.tojson($("_id"->id)++$("success"->true)))       else         badrequest($("success"->false))     } }

and i'm generating records this:

{     "_id": {         "$oid": "556dfb2021c76e3b1c566915"     },     "_id ": {         "$oid": "556dfb1f5f00006100d4a0bc"     } }

you should not generate mongodb _id manually unless know sure unique or have deal duplicated key exception in code.

if insert new document without _id, mongodb generate 1 during insert process. if want _id back, can request mongodb document newly created _id.

normally drivers handle part automatically you.


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