Get artist from MusicBrainz

lib/music_brainz.ex

@@ -32,5 +32,9 @@ defmodule MusicBrainz do
     API.get_cover_art(id_or_url, music_brainz_config())
   end
 
+  def get_artist(musicbrainz_id) do
+    API.get_artist(musicbrainz_id, music_brainz_config())
+  end
+
   defp music_brainz_config, do: MusicBrainz.Config.resolve(:music_library)
 end

lib/music_brainz/api.ex

@@ -8,7 +8,7 @@ defmodule MusicBrainz.API do
 
   require Logger
 
-  alias MusicBrainz.{ReleaseGroupSearchResult, ReleaseSearchResult}
+  alias MusicBrainz.{Artist, ReleaseGroupSearchResult, ReleaseSearchResult}
 
   @doc """
   Uses the [lookup](https://musicbrainz.org/doc/MusicBrainz_API#Lookups) endpoint with the release group id and include the
@@ -451,6 +451,20 @@ defmodule MusicBrainz.API do
     |> get_request()
   end
 
+  def get_artist(musicbrainz_id, config) do
+    config
+    |> new_request()
+    |> Req.merge(
+      url: "/artist/#{musicbrainz_id}",
+      params: [
+        fmt: "json",
+        inc: "url-rels"
+      ]
+    )
+    |> Req.Request.append_response_steps(parse_artist: &parse_artist/1)
+    |> get_request()
+  end
+
   @doc """
   Uses the [cover art](https://musicbrainz.org/doc/Cover_Art_Archive/API) endpoint with the release group id to get the cover image.
   """
@@ -525,4 +539,10 @@ defmodule MusicBrainz.API do
 
     {request, Map.put(response, :body, releases)}
   end
+
+  defp parse_artist({request, response}) do
+    artist = Artist.from_api_response(response.body)
+
+    {request, Map.put(response, :body, artist)}
+  end
 end

lib/music_brainz/artist.ex

@@ -0,0 +1,23 @@
+defmodule MusicBrainz.Artist do
+  @enforce_keys [:id, :name, :sort_name]
+  defstruct [:id, :name, :sort_name, :country, :relations]
+
+  def from_api_response(r) do
+    %__MODULE__{
+      id: r["id"],
+      name: r["name"],
+      sort_name: r["sort-name"],
+      country: r["country"],
+      relations: parse_relations(r["relations"])
+    }
+  end
+
+  defp parse_relations(relations) do
+    Enum.map(relations, fn relation ->
+      %{
+        type: relation["type"],
+        url: relation["url"]
+      }
+    end)
+  end
+end