Query by ObjectID hexadecimal string

[adrian-catana]

How can I query for document based on ObjectID as string? The only way I could get it to work is
to use Mongo.Ecto.ObjectID.dump from Mongo.Ecto project, like this:

Mongo.find(MongoPool, "some_collection", %{_id: elem(Mongo.Ecto.ObjectID.dump("55e724bf44f4173c876919f9"),1) })

is there a way to do it and not depend on an external project?

[michalmuskala]

I think a helper function for this directly in Mongo could be useful.

[ericmj]

We can add encode and decode functions to ObjectId.