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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)
print(f"✅ Loaded {len(songs_data)} songs at startup.")
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(
page: int = 1,
limit: int = 5,
query: str = Query(None, description="Search query for song title or artist") # Re-added query parameter
):
"""
Fetches a paginated and optionally filtered list of songs.
:param page: The page number to retrieve (1-indexed).
:param limit: The maximum number of songs to return per page.
:param query: Optional search string to filter by title or artist.
"""
if not songs_data:
return {"error": "No songs available. Check songs.json"}, 500
# Apply filtering first if a query is provided
filtered_songs = songs_data
if query:
search_query_lower = query.lower()
filtered_songs = [
song for song in songs_data
if search_query_lower in song.get("title", "").lower() or
search_query_lower in song.get("artist", "").lower()
]
start_index = max((page - 1) * limit, 0)
end_index = start_index + limit
if start_index >= len(filtered_songs):
return [] # No more songs to return for this query/page
paginated_songs = filtered_songs[start_index:end_index]
return paginated_songs |