Update app.py

app.py

@@ -1,24 +1,38 @@
 import streamlit as st
 import requests
 
-st.title("💱 Simple Currency Converter")
+# Page settings
+st.set_page_config(page_title="Currency Converter", page_icon="💱")
 
-# Input amount
-amount = st.number_input("Enter amount", value=1.0)
+# Title
+st.title("💰 Currency Converter")
 
-# From currency
-from_currency = st.selectbox("From currency", ["USD", "EUR", "GBP", "JPY", "INR"])
+# Function to fetch exchange rates
+@st.cache_data
+def get_rates(base="USD"):
+    url = f"https://api.exchangerate-api.com/v4/latest/{base}"
+    response = requests.get(url)
+    
+    if response.status_code != 200:
+        return None
+    
+    data = response.json()
+    return data["rates"]
+
+# UI Inputs
+amount = st.number_input("Enter Amount", min_value=0.0, value=1.0)
 
-# To currency
-to_currency = st.selectbox("To currency", ["USD", "EUR", "GBP", "JPY", "INR"])
+from_currency = st.text_input("From Currency (e.g., USD)", value="USD").upper()
+to_currency = st.text_input("To Currency (e.g., PKR)", value="PKR").upper()
 
-# Fetch exchange rate
+# Convert Button
 if st.button("Convert"):
-    url = f"https://api.exchangerate.host/convert?from={from_currency}&to={to_currency}&amount={amount}"
-    response = requests.get(url)
-    data = response.json()
-    if data.get("success"):
-        converted_amount = data["result"]
-        st.success(f"{amount} {from_currency} = {converted_amount:.2f} {to_currency}")
+    rates = get_rates(from_currency)
+    
+    if rates is None:
+        st.error("Failed to fetch exchange rates.")
+    elif to_currency not in rates:
+        st.error("Invalid currency code.")
     else:
-        st.error("Failed to retrieve data. Try again later.")
+        result = amount * rates[to_currency]
+        st.success(f"{amount} {from_currency} = {round(result, 2)} {to_currency}")