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lib/exhal/collection.ex
defmodule ExHal.Collection do
@moduledoc """
Utility functions for dealing with RFC 6473 collections
"""
@doc """
Returns a stream that iterate over the collection represented by `a_doc`.
"""
def to_stream(a_doc) do
Stream.resource(
fn -> {:ok, a_doc} end,
fn follow_result ->
case follow_result do
{:error, _} -> {:halt, follow_result}
{:ok, page} -> {ExHal.follow_links(page, "item"),
ExHal.follow_link(page, "next", pick_volunteer: true)}
end
end,
fn _ -> nil end
)
end
end