[Feature Proposal] Compute cursor for each document

Feature request & proposal

Highlighting the relay specification for the cursor based pagination which specifies a cursor for each document. As things are today, this library returns pagination metadata as separate fields (next, previous, etc…) which points to the last document of the list.

I propose to add an additional field _cursor for each document which will allow the user to move in forward/backward direction from any node in a list.

Example -

{
 "results":
   [ 
      { 
        " _id" : "580fd16aca2a6b271562d8bb", 
        "counter": 4, 
        "_cursor": "eyIkb2lkIjoiNTgwZmQxNmFjYTJhNmIyNzE1NjJkOGJiIn0" },
      {
       " _id": "580fd16aca2a6b271562d8ba",
       "counter": 3, 
        "_cursor": "eyIkb2lkIjoiNTgwZmQxNmFjYTJhNmIyNzE1NjJkOGJhIn0" 
      } 
  ],
  "next": "eyIkb2lkIjoiNTgwZmQxNmFjYTJhNmIyNzE1NjJkOGJhIn0",
  "hasNext": "true" 
}

[bradvogel]

Also is there any way to get the total count instead of HasNext ? I can mimic that by running countDocuments with the query before the Mongo query but maybe you have another suggestion ? 😃

This library doesn’t provide a way to get a total count. I don’t think we’d want that - even if it was opt-in-only - given the performance cost of running such query.

[bradvogel]

Yes, sounds useful. I’d accept a PR. Perhaps for now make it an option?