Create app.py

app.py

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+import streamlit as st
+import requests
+import os
+
+# Streamlit Page Configuration
+st.set_page_config(page_title="Currency Converter", page_icon="💱", layout="centered")
+
+# Title & Description
+st.title("💱 Currency Converter")
+st.write("Convert currencies in real-time using the latest exchange rates.")
+
+# Get API Key Securely
+API_KEY = os.getenv("API_KEY")  # Fetch from Hugging Face Secrets
+
+# Base API URL
+BASE_URL = "https://api.apilayer.com/exchangerates_data/latest"
+
+# Fetch List of Available Currencies
+@st.cache_data  # Cache to avoid multiple API calls
+def get_currencies():
+    url = f"{BASE_URL}?apikey={API_KEY}"
+    response = requests.get(url).json()
+    
+    if "rates" in response:
+        return sorted(response["rates"].keys())  # Sorted list of currencies
+    else:
+        st.error("⚠️ Unable to fetch currency list. Check API key.")
+        return []
+
+# Load Currency Options
+currencies = get_currencies()
+
+# User Inputs
+amount = st.number_input("Enter Amount:", min_value=0.01, step=0.01)
+from_currency = st.selectbox("From Currency", currencies, index=currencies.index("USD"))
+to_currency = st.selectbox("To Currency", currencies, index=currencies.index("INR"))
+
+# Conversion Function
+def convert_currency(amount, from_currency, to_currency):
+    url = f"{BASE_URL}?base={from_currency}&apikey={API_KEY}"
+    response = requests.get(url).json()
+
+    if "rates" in response and to_currency in response["rates"]:
+        converted_amount = amount * response["rates"][to_currency]
+        return f"{amount} {from_currency} = {converted_amount:.2f} {to_currency}"
+    else:
+        return "⚠️ Error: Unable to fetch exchange rates."
+
+# Convert Button
+if st.button("Convert"):
+    if from_currency == to_currency:
+        st.warning("Please select different currencies! 🚀")
+    else:
+        result = convert_currency(amount, from_currency, to_currency)
+        st.success(f"**{result}**")  # Bold Black Output