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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:store_sales_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
+store_sales_predictor_api = Flask("Store_sales Price Predictor")
+
+# Load the trained machine learning model
+model = joblib.load("deployment_files/store_sales_prediction_model_v1_0.joblib")
+print(model)
+
+# Define a route for the home page (GET request)
+@store_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 Store Sales Prediction API!"
+
+# Define an endpoint for single property prediction (POST request)
+@store_sales_predictor_api.post('/v1/sales')
+def predict_store_sales():
+    """
+    This function handles POST requests to the '/v1/sales' endpoint.
+    It expects a JSON payload containing property details and returns
+    the predicted sales 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 = {
+        'Product_Weight':property_data['Product_Weight']
+        'Product_Sugar_Content':property_data['Product_Sugar_Content']
+        'Product_Allocated_Area':property_data['Product_Allocated_Area']
+        'Product_Type':property_data['Product_Type']
+        'Product_MRP':property_data['Product_MRP']
+        'Store_Id':property_data['Store_Id']
+        'Store_Establishment_Year':property_data['Store_Establishment_Year']
+        'Store_Size':property_data['Store_Size']
+        'Store_Location_City_Type':property_data['Store_Location_City_Type']
+        'Store_Type':property_data['Store_Type']
+    }
+
+    # Convert the extracted data into a Pandas DataFrame
+    input_data = pd.DataFrame([sample])
+
+    # Make prediction (get store_sales)
+    predicted_store_sales = model.predict(input_data)[0]
+
+    # Calculate actual price
+    predicted_sales = np.exp(predicted_store_sales)
+
+    # Convert predicted_sales to Python float
+    predicted_sales = round(float(predicted_sales), 2)
+
+    # Return the actual price
+    return jsonify({'Predicted Sales (in dollars)': predicted_sales})
+
+
+# Define an endpoint for batch prediction (POST request)
+@store_sales_predictor_api.post('/v1/salesbatch')
+def predict_store_sales_batch():
+    """
+    This function handles POST requests to the '/v1/salesbatch' endpoint.
+    It expects a CSV file containing property details for multiple properties
+    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 store_saless)
+    predicted_store_saless = model.predict(input_data).tolist()
+
+    # Calculate actual prices
+    predicted_saless = [round(float(np.exp(store_sales)), 2) for store_sales in predicted_store_saless]
+
+    # 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_saless))  # 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__':
+    store_sales_predictor_api.run(debug=True)

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