Update app.py

app.py

@@ -1,8 +1,44 @@
+import json
+from fastapi import FastAPI
+from starlette.middleware.sessions import SessionMiddleware
+from starlette.responses import HTMLResponse, RedirectResponse
+from starlette.requests import Request
 import gradio as gr
+import uvicorn
+from fastapi.responses import HTMLResponse
+from fastapi.responses import RedirectResponse
+
 import spotipy
+from spotipy import oauth2
+
+PORT_NUMBER = 8080
+SPOTIPY_CLIENT_ID = 'c087fa97cebb4f67b6f08ba841ed8378'
+SPOTIPY_CLIENT_SECRET = 'ae27d6916d114ac4bb948bb6c58a72d9'
+SPOTIPY_REDIRECT_URI = 'https://hf-hackathon-2023-01-spotify.hf.space'
+SCOPE = 'user-library-read'
+
+sp_oauth = oauth2.SpotifyOAuth(SPOTIPY_CLIENT_ID, SPOTIPY_CLIENT_SECRET, SPOTIPY_REDIRECT_URI, scope=SCOPE)
+
+app = FastAPI()
+app.add_middleware(SessionMiddleware, secret_key="w.o.w")
+
+@app.get('/', response_class=HTMLResponse)
+async def homepage(request: Request):
+    token = request.session.get('token')
+    if token:
+        return RedirectResponse("/gradio")
+
+    url = str(request.url)
+    code = sp_oauth.parse_response_code(url)
+    if code != url:
+        token_info = sp_oauth.get_access_token(code)
+        request.session['token'] = token_info['access_token']
+        return RedirectResponse("/gradio")
+
+    auth_url = sp_oauth.get_authorize_url()
+    return "<a href='" + auth_url + "'>Login to Spotify</a>"
 
 
-###########
 
 from vega_datasets import data
 
@@ -49,4 +85,6 @@ with gr.Blocks() as demo:
     demo.load(fn=scatter_plot_fn, outputs=plot)
 
 
-demo.launch()
+
+gradio_app = gr.mount_gradio_app(app, demo, "/gradio")
+uvicorn.run(app, host="0.0.0.0", port=7860)