1st change

Dockerfile

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+# Use an official Python runtime as a parent image
+FROM python:3.11
+
+# Set the working directory in the container
+WORKDIR /app
+
+
+# Copy the application files
+COPY . .
+
+# Install dependencies
+RUN pip install -r requirements.txt
+
+
+# Expose the ports for FastAPI (8000) and Streamlit (8501)
+EXPOSE 7860
+
+# Run FastAPI and Streamlit in parallel
+CMD ["sh", "-c", "uvicorn app:app --host 0.0.0.0 --port 7860"]
+
+

app.py

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+import streamlit as st
+import requests
+
+# FastAPI backend URL (assuming it's running on localhost)
+API_URL = "http://127.0.0.1:8000/"
+
+# Define function to get continent stats from FastAPI backend
+def get_continent_stats(continent):
+    response = requests.get(f"{API_URL}{continent}/")
+    if response.status_code == 200:
+        return response.json()
+    else:
+        st.error("Failed to fetch data")
+        return None
+
+# Streamlit user interface
+st.title("World Population and Statistics by Continent")
+
+# Sidebar for continent and function selection
+st.sidebar.header("Options")
+continent = st.sidebar.selectbox("Select Continent:", ['Africa', 'Asia', 'Europe', 'North America', 'South America', 'Oceania'])
+function = st.sidebar.selectbox("Choose statistic to display:", [
+    "Total Countries", 
+    "Total Population", 
+    "Average Population", 
+    "Total Area", 
+    "Max Population", 
+    "Min Population", 
+    "Population Density"
+])
+
+# Fetch the data when a continent is selected
+continent_data = get_continent_stats(continent)
+
+if continent_data:
+    # Display the statistics based on selected function
+    st.subheader(f"{function} in {continent}")
+    if function == "Total Countries":
+        st.write(f"Total Countries: {continent_data['Total_Countries']}")
+    elif function == "Total Population":
+        st.write(f"Total Population: {continent_data['Total_Population']}")
+    elif function == "Average Population":
+        st.write(f"Average Population: {continent_data['Average_Population']}")
+    elif function == "Total Area":
+        st.write(f"Total Area (km²): {continent_data['Total_Area']}")
+    elif function == "Max Population":
+        st.write(f"Maximum Population: {continent_data['max_population']}")
+    elif function == "Min Population":
+        st.write(f"Minimum Population: {continent_data['min_population']}")
+    elif function == "Population Density":
+        st.write(f"Population Density (per km²): {continent_data['Population_Density']}")