init app.py

app.py

@@ -0,0 +1,147 @@
+from flask import Flask, request, jsonify
+import logging
+from datetime import datetime
+
+app = Flask(__name__)
+
+# Setup logging
+logging.basicConfig(
+    filename='api.log',
+    level=logging.INFO,
+    format='%(asctime)s - %(levelname)s - %(message)s'
+)
+
+# Simple in-memory database (just a list)
+products = [
+    {"id": 1, "name": "Laptop", "price": 5000, "quantity": 10},
+    {"id": 2, "name": "Mouse", "price": 150, "quantity": 50}
+]
+
+orders = []
+
+# Home page
+@app.route('/')
+def home():
+    logging.info("GET / - Home page accessed")
+    return jsonify({"message": "Welcome to my first API!"})
+
+# Get all products
+@app.route('/products', methods=['GET'])
+def get_products():
+    logging.info("GET /products - Fetching all products")
+    return jsonify({"products": products})
+
+# Get single product
+@app.route('/products/<int:product_id>', methods=['GET'])
+def get_product(product_id):
+    logging.info(f"GET /products/{product_id} - Fetching product")
+    
+    for product in products:
+        if product['id'] == product_id:
+            return jsonify(product)
+    
+    logging.error(f"404 - Product {product_id} not found")
+    return jsonify({"error": "Product not found"}), 404
+
+# Add new product
+@app.route('/products', methods=['POST'])
+def add_product():
+    data = request.get_json()
+    logging.info(f"POST /products - Adding new product: {data}")
+    
+    if not data or 'name' not in data or 'price' not in data:
+        logging.error("400 - Missing required fields")
+        return jsonify({"error": "name and price are required"}), 400
+    
+    new_product = {
+        "id": len(products) + 1,
+        "name": data['name'],
+        "price": data['price'],
+        "quantity": data.get('quantity', 0)
+    }
+    products.append(new_product)
+    
+    return jsonify({"message": "Product added successfully", "product": new_product}), 201
+
+# Update product
+@app.route('/products/<int:product_id>', methods=['PUT'])
+def update_product(product_id):
+    data = request.get_json()
+    logging.info(f"PUT /products/{product_id} - Updating product")
+    
+    for product in products:
+        if product['id'] == product_id:
+            if 'name' in data:
+                product['name'] = data['name']
+            if 'price' in data:
+                product['price'] = data['price']
+            if 'quantity' in data:
+                product['quantity'] = data['quantity']
+            
+            return jsonify({"message": "Product updated", "product": product})
+    
+    logging.error(f"404 - Product {product_id} not found for update")
+    return jsonify({"error": "Product not found"}), 404
+
+# Delete product
+@app.route('/products/<int:product_id>', methods=['DELETE'])
+def delete_product(product_id):
+    logging.info(f"DELETE /products/{product_id} - Deleting product")
+    
+    for i, product in enumerate(products):
+        if product['id'] == product_id:
+            deleted = products.pop(i)
+            return jsonify({"message": "Product deleted", "product": deleted})
+    
+    logging.error(f"404 - Product {product_id} not found for deletion")
+    return jsonify({"error": "Product not found"}), 404
+
+# Create order
+@app.route('/orders', methods=['POST'])
+def create_order():
+    data = request.get_json()
+    logging.info(f"POST /orders - Creating new order: {data}")
+    
+    if not data or 'product_id' not in data or 'quantity' not in data:
+        logging.error("400 - Missing order information")
+        return jsonify({"error": "product_id and quantity are required"}), 400
+    
+    # Find product
+    product = None
+    for p in products:
+        if p['id'] == data['product_id']:
+            product = p
+            break
+    
+    if not product:
+        logging.error(f"404 - Product {data['product_id']} not found for order")
+        return jsonify({"error": "Product not found"}), 404
+    
+    if product['quantity'] < data['quantity']:
+        logging.error("400 - Not enough stock")
+        return jsonify({"error": "Not enough stock"}), 400
+    
+    # Create order
+    order = {
+        "id": len(orders) + 1,
+        "product_id": data['product_id'],
+        "product_name": product['name'],
+        "quantity": data['quantity'],
+        "total": product['price'] * data['quantity'],
+        "date": datetime.now().strftime("%Y-%m-%d %H:%M:%S")
+    }
+    
+    # Update stock
+    product['quantity'] -= data['quantity']
+    
+    orders.append(order)
+    return jsonify({"message": "Order created successfully", "order": order}), 201
+
+# Get all orders
+@app.route('/orders', methods=['GET'])
+def get_orders():
+    logging.info("GET /orders - Fetching all orders")
+    return jsonify({"orders": orders})
+
+if __name__ == '__main__':
+    app.run(debug=True, host='0.0.0.0', port=5000)