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import os
from flask import Flask, request, jsonify
from flask_cors import CORS
import requests
import subprocess
import pytz
from datetime import datetime, timedelta
app = Flask(__name__)
CORS(app)
# Load API key from environment variable
API_KEY = os.environ.get("CONV_TOKEN")
if not API_KEY:
raise ValueError("API Key not found! Set CONV_TOKEN environment variable.")
API_URL = f"https://v6.exchangerate-api.com/v6/{API_KEY}/latest/USD"
# Los Angeles timezone
LA_TZ = pytz.timezone("America/Los_Angeles")
# Cache storage
cached_rates = {}
last_updated = None # Store last update in LA time
@app.route('/')
def home():
return ""
def fetch_exchange_rates():
"""Fetch exchange rates from API and store them for 24 hours (Los Angeles time)."""
global cached_rates, last_updated
response = requests.get(API_URL)
if response.status_code == 200:
data = response.json()
cached_rates = data["conversion_rates"]
last_updated = datetime.now(LA_TZ) # Store timestamp in LA timezone
return True
return False
@app.route("/rate", methods=["GET"])
def get_exchange_rate():
"""Returns only the exchange rate for a given currency, refreshed every 24 hours (Los Angeles time)."""
global cached_rates, last_updated
from_currency = request.args.get("from", "").upper()
# Get current Los Angeles time
now_la = datetime.now(LA_TZ)
# If cache is older than 24 hours, refresh rates
if last_updated is None or (now_la - last_updated) > timedelta(hours=24):
success = fetch_exchange_rates()
if not success:
return jsonify({"error": "Failed to fetch exchange rates"}), 500
if from_currency in cached_rates:
return jsonify({
"from": from_currency,
"rate": cached_rates[from_currency],
"last_updated": last_updated.strftime("%Y-%m-%d %H:%M:%S %Z")
})
else:
return jsonify({"error": "Currency not supported"}), 400
if __name__ == "__main__":
fetch_exchange_rates() # Pre-load rates
subprocess.Popen(["python", "wk.py"])
app.run(host='0.0.0.0', port=7860) |