Create Dockerfile

app.py

@@ -1,16 +1,42 @@
-from fastapi import FastAPI
+from fastapi import FastAPI, Query
 import json
 import os
 
 app = FastAPI()
+songs_data = []  # Cached in-memory list of songs
+
+@app.on_event("startup")
+def load_songs():
+    global songs_data
+    json_path = os.path.join(os.path.dirname(__file__), "songs.json")
+    try:
+        with open(json_path, "r", encoding="utf-8") as f:
+            songs_data = json.load(f)
+    except FileNotFoundError:
+        print("❌ songs.json not found!")
+    except json.JSONDecodeError:
+        print("❌ Error decoding songs.json!")
 
 @app.get("/")
 def read_root():
     return {"message": "Welcome to the Song API!"}
 
 @app.get("/songs")
-def get_songs():
-    json_path = os.path.join(os.path.dirname(__file__), "songs.json")
-    with open(json_path, "r", encoding="utf-8") as f:
-        songs = json.load(f)
-    return songs
+def get_songs(page: int = 1, limit: int = 10):
+    """
+    Fetches a paginated list of songs.
+    :param page: The page number to retrieve (1-indexed).
+    :param limit: The maximum number of songs to return per page.
+    """
+    if not songs_data:
+        return {"error": "No songs available. Check songs.json"}, 500
+
+    start_index = max((page - 1) * limit, 0)
+    end_index = start_index + limit
+
+    if start_index >= len(songs_data):
+        return []
+
+    paginated_songs = songs_data[start_index:end_index]
+
+    return paginated_songs