break down the api blueprint into smaller blueprints

server/app/api/track.py

@@ -0,0 +1,26 @@
+from flask import Blueprint, send_file
+
+from app import instances
+
+track_bp = Blueprint("track", __name__, url_prefix="/")
+
+
+@track_bp.route("/file/<trackid>")
+def send_track_file(trackid):
+    """
+    Returns an audio file that matches the passed id to the client.
+    """
+    try:
+        filepath = instances.songs_instance.get_song_by_id(trackid)["filepath"]
+        return send_file(filepath, mimetype="audio/mp3")
+    except FileNotFoundError:
+        return "File not found", 404
+
+
+@track_bp.route("/sample")
+def get_sample_track():
+    """
+    Returns a sample track object.
+    """
+
+    return instances.songs_instance.get_song_by_album("Legends Never Die", "Juice WRLD")