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"""
Razorpay Payment Integration Service
Handles payment processing in sandbox mode
"""
import razorpay
from typing import Dict, Optional
import json
import os
from datetime import datetime
class PaymentService:
"""
Payment service using Razorpay in test mode
"""
def __init__(self, key_id: str, key_secret: str):
"""
Initialize Razorpay client with test credentials
"""
self.client = razorpay.Client(auth=(key_id, key_secret))
self.client.set_app_details({
"title": "Smart Parking System",
"version": "1.0.0"
})
def create_payment_order(self, amount: float, currency: str = "INR",
booking_id: str = None,
notes: Dict = None) -> Dict:
"""
Create a payment order for parking booking
Args:
amount: Amount in rupees (will be converted to paise)
currency: Currency code (default: INR)
booking_id: Reference booking ID
notes: Additional notes/metadata
Returns:
Order details including order_id
"""
try:
# Convert amount to paise (smallest currency unit)
amount_paise = int(amount * 100)
# Prepare order data
order_data = {
'amount': amount_paise,
'currency': currency,
'receipt': f'booking_{booking_id}_{datetime.now().strftime("%Y%m%d%H%M%S")}',
'payment_capture': 1 # Auto capture payment
}
# Add notes if provided
if notes:
order_data['notes'] = notes
# Create order
order = self.client.order.create(data=order_data)
return {
'success': True,
'order_id': order['id'],
'amount': amount,
'currency': order['currency'],
'receipt': order['receipt'],
'status': order['status'],
'created_at': order['created_at']
}
except Exception as e:
return {
'success': False,
'error': str(e)
}
def verify_payment_signature(self, order_id: str, payment_id: str,
signature: str, key_secret: str) -> bool:
"""
Verify the payment signature for security
Args:
order_id: Razorpay order ID
payment_id: Razorpay payment ID
signature: Signature to verify
key_secret: Your Razorpay key secret
Returns:
True if signature is valid, False otherwise
"""
try:
params_dict = {
'razorpay_order_id': order_id,
'razorpay_payment_id': payment_id,
'razorpay_signature': signature
}
# Verify signature
self.client.utility.verify_payment_signature(params_dict)
return True
except razorpay.errors.SignatureVerificationError:
return False
except Exception as e:
print(f"Signature verification error: {e}")
return False
def fetch_payment_details(self, payment_id: str) -> Optional[Dict]:
"""
Fetch payment details by payment ID
"""
try:
payment = self.client.payment.fetch(payment_id)
return {
'payment_id': payment['id'],
'amount': payment['amount'] / 100, # Convert back to rupees
'currency': payment['currency'],
'status': payment['status'],
'method': payment.get('method', 'unknown'),
'email': payment.get('email', ''),
'contact': payment.get('contact', ''),
'created_at': payment['created_at']
}
except Exception as e:
print(f"Error fetching payment: {e}")
return None
def refund_payment(self, payment_id: str, amount: Optional[float] = None,
notes: Dict = None) -> Dict:
"""
Initiate a refund for a payment
Args:
payment_id: Razorpay payment ID
amount: Refund amount (if partial, otherwise full refund)
notes: Additional notes
Returns:
Refund details
"""
try:
refund_data = {}
if amount:
refund_data['amount'] = int(amount * 100) # Convert to paise
if notes:
refund_data['notes'] = notes
refund = self.client.payment.refund(payment_id, refund_data)
return {
'success': True,
'refund_id': refund['id'],
'payment_id': refund['payment_id'],
'amount': refund['amount'] / 100,
'status': refund['status'],
'created_at': refund['created_at']
}
except Exception as e:
return {
'success': False,
'error': str(e)
}
def create_payment_link(self, amount: float, description: str,
customer_name: str, customer_contact: str,
customer_email: str, booking_id: str) -> Dict:
"""
Create a payment link for WhatsApp sharing
Args:
amount: Amount in rupees
description: Payment description
customer_name: Customer name
customer_contact: Customer phone number
customer_email: Customer email
booking_id: Reference booking ID
Returns:
Payment link details
"""
try:
link_data = {
'amount': int(amount * 100),
'currency': 'INR',
'description': description,
'customer': {
'name': customer_name,
'contact': customer_contact,
'email': customer_email
},
'notify': {
'sms': True,
'email': True
},
'reminder_enable': True,
'callback_url': f'https://your-domain.com/payment/callback/{booking_id}',
'callback_method': 'get'
}
payment_link = self.client.payment_link.create(data=link_data)
return {
'success': True,
'link_id': payment_link['id'],
'short_url': payment_link['short_url'],
'amount': amount,
'status': payment_link['status'],
'created_at': payment_link['created_at']
}
except Exception as e:
return {
'success': False,
'error': str(e)
}
def capture_payment(self, payment_id: str, amount: float) -> Dict:
"""
Manually capture a payment (if auto-capture is disabled)
"""
try:
amount_paise = int(amount * 100)
payment = self.client.payment.capture(payment_id, amount_paise)
return {
'success': True,
'payment_id': payment['id'],
'amount': payment['amount'] / 100,
'status': payment['status']
}
except Exception as e:
return {
'success': False,
'error': str(e)
}
class PaymentSimulator:
"""
Simulator for testing payments without actual transactions
Useful for development and testing
"""
def __init__(self):
self.simulated_payments = {}
self.payment_counter = 1000
def simulate_payment(self, order_id: str, amount: float,
status: str = "captured") -> Dict:
"""
Simulate a payment transaction
"""
payment_id = f"pay_sim_{self.payment_counter}"
self.payment_counter += 1
payment_data = {
'payment_id': payment_id,
'order_id': order_id,
'amount': amount,
'status': status,
'method': 'simulated',
'timestamp': datetime.now().isoformat()
}
self.simulated_payments[payment_id] = payment_data
return {
'success': True,
'payment_id': payment_id,
'amount': amount,
'status': status,
'message': 'Payment simulated successfully'
}
def get_simulated_payment(self, payment_id: str) -> Optional[Dict]:
"""
Retrieve simulated payment details
"""
return self.simulated_payments.get(payment_id)
# Example usage
if __name__ == "__main__":
# Test credentials from CSV
KEY_ID = "rzp_test_RYlqJbc24Sl6jz"
KEY_SECRET = "bghQe0L7iort9vmqb6Jlf8Ec"
# Initialize payment service
payment_service = PaymentService(KEY_ID, KEY_SECRET)
# Example 1: Create payment order
print("Creating payment order...")
order = payment_service.create_payment_order(
amount=50.00,
booking_id="BKG123",
notes={
'slot_id': 'A1',
'duration': '2 hours',
'vehicle_number': 'DL01AB1234'
}
)
print(json.dumps(order, indent=2))
# Example 2: Create payment link (for WhatsApp)
print("\nCreating payment link...")
payment_link = payment_service.create_payment_link(
amount=50.00,
description="Parking Slot A1 - 2 hours",
customer_name="John Doe",
customer_contact="+919876543210",
customer_email="john@example.com",
booking_id="BKG123"
)
print(json.dumps(payment_link, indent=2))
# Example 3: Simulate payment (for testing)
print("\nSimulating payment...")
simulator = PaymentSimulator()
simulated = simulator.simulate_payment(
order_id=order.get('order_id', 'test_order'),
amount=50.00
)
print(json.dumps(simulated, indent=2))
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