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Dockerfile

@@ -1,16 +1,16 @@
+# Use a minimal base image with Python 3.9 installed
 FROM python:3.9-slim
 
-# Set the working directory inside the container
+# Set the working directory inside the container to /app
 WORKDIR /app
 
-# Copy all files from the current directory to the container's working directory
+# Copy all files from the current directory on the host to the container's /app directory
 COPY . .
 
-# Install dependencies from the requirements file without using cache to reduce image size
-RUN pip install --no-cache-dir --upgrade -r requirements.txt
+# Install Python dependencies listed in requirements.txt
+RUN pip3 install -r requirements.txt
 
-# Define the command to start the application using Gunicorn with 4 worker processes
-# - `-w 4`: Uses 4 worker processes for handling requests
-# - `-b 0.0.0.0:7860`: Binds the server to port 7860 on all network interfaces
-# - `app:app`: Runs the Flask app (assuming `app.py` contains the Flask instance named `app`)
-CMD ["gunicorn", "-w", "4", "-b", "0.0.0.0:7860", "app:rental_price_predictor_api"]
+# Define the command to run the Streamlit app on port 8501 and make it accessible externally
+CMD ["streamlit", "run", "app.py", "--server.port=8501", "--server.address=0.0.0.0", "--server.enableXsrfProtection=false"]
+
+# NOTE: Disable XSRF protection for easier external access in order to make batch predictions

app.py

@@ -1,93 +1,59 @@
-# Import necessary libraries
-import numpy as np
-import joblib  # For loading the serialized model
-import pandas as pd  # For data manipulation
-from flask import Flask, request, jsonify  # For creating the Flask API
-
-# Initialize the Flask application
-rental_price_predictor_api = Flask("Airbnb Rental Price Predictor")
-
-# Load the trained machine learning model
-model = joblib.load("rental_price_prediction_model_v1_0.joblib")
-
-# Define a route for the home page (GET request)
-@rental_price_predictor_api.get('/')
-def home():
-    """
-    This function handles GET requests to the root URL ('/') of the API.
-    It returns a simple welcome message.
-    """
-    return "Welcome to the Airbnb Rental Price Prediction API!"
-
-# Define an endpoint for single property prediction (POST request)
-@rental_price_predictor_api.post('/v1/rental')
-def predict_rental_price():
-    """
-    This function handles POST requests to the '/v1/rental' endpoint.
-    It expects a JSON payload containing property details and returns
-    the predicted rental price as a JSON response.
-    """
-    # Get the JSON data from the request body
-    property_data = request.get_json()
-
-    # Extract relevant features from the JSON data
-    sample = {
-        'room_type': property_data['room_type'],
-        'accommodates': property_data['accommodates'],
-        'bathrooms': property_data['bathrooms'],
-        'cancellation_policy': property_data['cancellation_policy'],
-        'cleaning_fee': property_data['cleaning_fee'],
-        'instant_bookable': property_data['instant_bookable'],
-        'review_scores_rating': property_data['review_scores_rating'],
-        'bedrooms': property_data['bedrooms'],
-        'beds': property_data['beds']
-    }
-
-    # Convert the extracted data into a Pandas DataFrame
-    input_data = pd.DataFrame([sample])
-
-    # Make prediction (get log_price)
-    predicted_log_price = model.predict(input_data)[0]
-
-    # Calculate actual price
-    predicted_price = np.exp(predicted_log_price)
-
-    # Convert predicted_price to Python float
-    predicted_price = round(float(predicted_price), 2)
-    # The conversion above is needed as we convert the model prediction (log price) to actual price using np.exp, which returns predictions as NumPy float32 values.
-    # When we send this value directly within a JSON response, Flask's jsonify function encounters a datatype error
-
-    # Return the actual price
-    return jsonify({'Predicted Price (in dollars)': predicted_price})
-
-
-# Define an endpoint for batch prediction (POST request)
-@rental_price_predictor_api.post('/v1/rentalbatch')
-def predict_rental_price_batch():
-    """
-    This function handles POST requests to the '/v1/rentalbatch' endpoint.
-    It expects a CSV file containing property details for multiple properties
-    and returns the predicted rental prices as a dictionary in the JSON response.
-    """
-    # Get the uploaded CSV file from the request
-    file = request.files['file']
-
-    # Read the CSV file into a Pandas DataFrame
-    input_data = pd.read_csv(file)
-
-    # Make predictions for all properties in the DataFrame (get log_prices)
-    predicted_log_prices = model.predict(input_data).tolist()
-
-    # Calculate actual prices
-    predicted_prices = [round(float(np.exp(log_price)), 2) for log_price in predicted_log_prices]
-
-    # Create a dictionary of predictions with property IDs as keys
-    property_ids = input_data['id'].tolist()  # Assuming 'id' is the property ID column
-    output_dict = dict(zip(property_ids, predicted_prices))  # Use actual prices
-
-    # Return the predictions dictionary as a JSON response
-    return output_dict
-
-# Run the Flask application in debug mode if this script is executed directly
-if __name__ == '__main__':
-    rental_price_predictor_api.run(debug=True)
+import streamlit as st
+import pandas as pd
+import requests
+
+# Set the title of the Streamlit app
+st.title("Airbnb Rental Price Prediction")
+
+# Section for online prediction
+st.subheader("Online Prediction")
+
+# Collect user input for property features
+room_type = st.selectbox("Room Type", ["Entire home/apt", "Private room", "Shared room"])
+accommodates = st.number_input("Accommodates (Number of guests)", min_value=1, value=2)
+bathrooms = st.number_input("Bathrooms", min_value=1, step=1, value=2)
+cancellation_policy = st.selectbox("Cancellation Policy (kind of cancellation policy)", ["strict", "flexible", "moderate"])
+cleaning_fee = st.selectbox("Cleaning Fee Charged?", ["True", "False"])
+instant_bookable = st.selectbox("Instantly Bookable?", ["False", "True"])
+review_scores_rating = st.number_input("Review Score Rating", min_value=0.0, max_value=100.0, step=1.0, value=90.0)
+bedrooms = st.number_input("Bedrooms", min_value=0, step=1, value=1)
+beds = st.number_input("Beds", min_value=0, step=1, value=1)
+
+# Convert user input into a DataFrame
+input_data = pd.DataFrame([{
+    'room_type': room_type,
+    'accommodates': accommodates,
+    'bathrooms': bathrooms,
+    'cancellation_policy': cancellation_policy,
+    'cleaning_fee': cleaning_fee,
+    'instant_bookable': 'f' if instant_bookable=="False" else "t",  # Convert to 't' or 'f'
+    'review_scores_rating': review_scores_rating,
+    'bedrooms': bedrooms,
+    'beds': beds
+}])
+
+# Make prediction when the "Predict" button is clicked
+if st.button("Predict"):
+    response = requests.post("https://srikanth421-srikanth421/RPPBackend.hf.space/v1/rental", json=input_data.to_dict(orient='records')[0])  # Send data to Flask API
+    if response.status_code == 200:
+        prediction = response.json()['Predicted Price (in dollars)']
+        st.success(f"Predicted Rental Price (in dollars): {prediction}")
+    else:
+        st.error("Error making prediction.")
+
+# Section for batch prediction
+st.subheader("Batch Prediction")
+
+# Allow users to upload a CSV file for batch prediction
+uploaded_file = st.file_uploader("Upload CSV file for batch prediction", type=["csv"])
+
+# Make batch prediction when the "Predict Batch" button is clicked
+if uploaded_file is not None:
+    if st.button("Predict Batch"):
+        response = requests.post("https://srikanth421-srikanth421/RPPBackend.hf.space/v1/rentalbatch", files={"file": uploaded_file})  # Send file to Flask API
+        if response.status_code == 200:
+            predictions = response.json()
+            st.success("Batch predictions completed!")
+            st.write(predictions)  # Display the predictions
+        else:
+            st.error("Error making batch prediction.")

requirements.txt

@@ -1,11 +1,3 @@
-pandas==2.2.2
-numpy==2.0.2
-scikit-learn==1.6.1
-xgboost==2.1.4
-joblib==1.4.2
-Werkzeug==2.2.2
-flask==2.2.2
-gunicorn==20.1.0
-requests==2.28.1
-uvicorn[standard]
 streamlit==1.43.2
+pandas
+requests