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Dockerfile

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+FROM python:3.9-slim
+
+# Set the working directory inside the container
+WORKDIR /app
+
+# Copy all files from the current directory to the container's working 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
+
+# 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"]

app.py

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+# 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
+product_sales_predictor_api = Flask("SuperKart Product Sales Predictor")
+
+# Load the trained machine learning model
+model = joblib.load("product_sales_prediction_model_v1_0.joblib")
+
+# Define a route for the home page (GET request)
+@product_sales_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 SuperKart Product Sales Prediction API!"
+
+# Define an endpoint for single property prediction (POST request)
+@product_sales_predictor_api.post('/v1/sales')
+def predict_product_sales():
+    """
+    This function handles POST requests to the '/v1/sales' endpoint.
+    It expects a JSON payload containing product details and returns
+    the predicted sales as a JSON response.
+    """
+    # Get the JSON data from the request body
+    product_data = request.get_json()
+
+    # Extract relevant features from the JSON data
+    sample = {
+        'Product_Allocated_Area': product_data['Product_Allocated_Area'],
+        'Product_Group': product_data['Product_Group'],
+        'Product_MRP': product_data['Product_MRP'],
+        'Store_Id': product_data['Store_Id'],
+        'Store_Age': product_data['Store_Age'],
+        'Store_Size': product_data['Store_Size'],
+        'Store_Location_City_Type': product_data['Store_Location_City_Type'],
+        'Store_Type': product_data['Store_Type'],
+        'Product_Weight': product_data['Product_Weight'],
+		    'Product_Sugar_Content': product_data['Product_Sugar_Content']
+    }
+
+    # Convert the extracted data into a Pandas DataFrame
+    input_data = pd.DataFrame([sample])
+
+    # Make prediction
+    predicted_sale = model.predict(input_data).tolist()[0]
+
+    # Convert predicted_sales to Python float
+    predicted_sale = round(float(predicted_sale), 2)
+
+    # Return the actual price
+    return jsonify({'Predicted Price (in dollars)': predicted_sale})
+
+
+# Define an endpoint for batch prediction (POST request)
+@product_sales_predictor_api.post('/v1/salesbatch')
+def predict_product_sales_batch():
+    """
+    This function handles POST requests to the '/v1/salesbatch' endpoint.
+    It expects a CSV file containing product details for multiple sales
+    and returns the predicted sales 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_sales = model.predict(input_data).tolist()
+    prod_id_list = input_data['Product_Id'].tolist()
+
+    # Create a dictionary of predictions with property IDs as keys
+    output_dict = dict(zip(prod_id_list, predicted_sales))
+    
+    # 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__':
+    product_sales_predictor_api.run(debug=True)

product_sales_prediction_model_v1_0.joblib

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+version https://git-lfs.github.com/spec/v1
+oid sha256:e7ec32275afce34c6778bed0cc784ae639c333f8f4f504c265c5b8a03e26073d
+size 55843041

requirements.txt

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+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