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diff --git a/lib/tesla/middleware/decode_rels.ex b/lib/tesla/middleware/decode_rels.ex
index 5bfc214..6b6874d 100644
--- a/lib/tesla/middleware/decode_rels.ex
+++ b/lib/tesla/middleware/decode_rels.ex
@@ -1,61 +1,54 @@
defmodule Tesla.Middleware.DecodeRels do
@moduledoc """
Decode `Link` Hypermedia HTTP header into `opts[:rels]` field in response.
## Example usage
```
defmodule MyClient do
use Tesla
plug Tesla.Middleware.DecodeRels
end
env = MyClient.get("/...")
env.opts[:rels]
# => %{"Next" => "http://...", "Prev" => "..."}
```
"""
@behaviour Tesla.Middleware
@impl Tesla.Middleware
def call(env, next, _opts) do
env
|> Tesla.run(next)
|> parse_rels
end
defp parse_rels({:ok, env}), do: {:ok, parse_rels(env)}
defp parse_rels({:error, reason}), do: {:error, reason}
defp parse_rels(env) do
if link = Tesla.get_header(env, "link") do
Tesla.put_opt(env, :rels, rels(link))
else
env
end
end
defp rels(link) do
link
|> String.split(",")
|> Enum.map(&String.trim/1)
|> Enum.map(&rel/1)
|> Enum.into(%{})
end
defp rel(item) do
- case Regex.run(~r/\A<(.+)>; rel=['"]?(.+)['"]?\z/, item, capture: :all_but_first) do
- nil ->
- %{}
-
- link_rel ->
- link_rel
- |> Enum.reverse()
- |> List.replace_at(0, String.trim(List.last(link_rel), "\""))
- |> List.to_tuple()
- end
+ [url, param] = String.split(item, ";")
+ [_attr, value] = param |> String.trim() |> String.split("=")
+ {value |> String.trim("'") |> String.trim("\""), url |> String.trim(">") |> String.trim("<")}
end
end

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