Helpers for working with connections

[frekw]

Hey!

These are some helpers that I often end up needing when working with Relay connections

defmodule GraphQL.Connection do
  import Absinthe.Resolution, only: [project: 1]

  def fields(info) do
    edge = project(info) |> Enum.find(fn f -> f.name == "edges" end)
    node = ((edge && edge.selections) || []) |> Enum.find(fn f -> f.name == "node" end)

    ((node && node.selections) || [])
    |> Enum.map(fn f -> String.to_atom(f.name) end)
    |> MapSet.new()
  end

  def map(%{edges: edges} = _conn, f) do
    Enum.map(edges, fn %{node: node} -> f.(node) end)
  end

  def update(%{edges: edges} = conn, f) do
    edges =
      Enum.map(edges, fn edge ->
        %{edge | node: f.(edge.node)}
      end)

    %{conn | edges: edges}
  end
end

would it make sense to integrate some additional helpers to make it easier to work with connections into absinthe_relay?