Spaces:
Running
Running
File size: 2,348 Bytes
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Simple Flask server for HuggingFace Spaces deployment.
Serves static files and provides a CORS proxy for ArXiv API requests.
"""
import os
import requests
from flask import Flask, send_from_directory, request, Response
from flask_cors import CORS
app = Flask(__name__, static_folder='static')
CORS(app)
# ==================== CORS Proxy Endpoints ====================
@app.route('/api/arxiv', methods=['GET'])
def proxy_arxiv():
"""Proxy ArXiv API requests to avoid CORS issues."""
params = request.args.to_dict()
try:
resp = requests.get(
'https://export.arxiv.org/api/query',
params=params,
timeout=30,
headers={'User-Agent': 'ArXiv-Research-Explorer/1.0'}
)
return Response(
resp.content,
status=resp.status_code,
content_type=resp.headers.get('Content-Type', 'application/xml')
)
except Exception as e:
return Response(f'Proxy error: {str(e)}', status=502)
@app.route('/api/ar5iv/<path:arxiv_id>', methods=['GET'])
def proxy_ar5iv(arxiv_id):
"""Proxy ar5iv HTML requests to avoid CORS issues."""
try:
url = f'https://ar5iv.labs.arxiv.org/html/{arxiv_id}'
resp = requests.get(
url,
timeout=60,
headers={'User-Agent': 'ArXiv-Research-Explorer/1.0'}
)
return Response(
resp.content,
status=resp.status_code,
content_type='text/html; charset=utf-8'
)
except Exception as e:
return Response(f'Proxy error: {str(e)}', status=502)
# ==================== Static File Serving ====================
@app.route('/')
def serve_index():
return send_from_directory('static', 'index.html')
@app.route('/<path:path>')
def serve_static(path):
"""Serve static files, fallback to index.html for SPA routing."""
file_path = os.path.join('static', path)
if os.path.isfile(file_path):
return send_from_directory('static', path)
return send_from_directory('static', 'index.html')
if __name__ == '__main__':
port = int(os.environ.get('PORT', 7860))
print(f"🚀 ArXiv Research Explorer server starting on port {port}")
print(f"📁 Serving static files from: {os.path.abspath('static')}")
app.run(host='0.0.0.0', port=port, debug=False)
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