aws-serverless-airline-booking

The aws-samples/aws-serverless-airline-booking repository is a sample application that demonstrates how to build a serverless airline booking system using AWS services. The application includes features such as user authentication, flight search, booking, and payment processing.

Pros

• Serverless Architecture: The application is built using AWS serverless services, which reduces the need for infrastructure management and scaling.
• Modular Design: The application is designed in a modular way, making it easier to maintain and extend.
• Security: The application uses AWS Identity and Access Management (IAM) and AWS Cognito for user authentication and authorization.
• Scalability: The serverless architecture of the application allows it to scale automatically to handle increased traffic.

Cons

• Vendor Lock-in: The application is heavily dependent on AWS services, which may make it difficult to migrate to other cloud providers.
• Complexity: The application is relatively complex, with multiple AWS services and components, which may make it challenging for beginners to understand and deploy.
• Cost: While serverless architectures can be cost-effective, the ongoing costs of running the application on AWS may be higher than a traditional, self-hosted solution.
• Limited Customization: The application is designed as a sample and may not include all the features or customizations that a production-ready application would require.

Code Examples

The aws-samples/aws-serverless-airline-booking repository contains several AWS Lambda functions written in Python. Here are a few examples:

1. Flight Search:

def lambda_handler(event, context):
    """
    Handles the flight search request.
    """
    # Extract the search parameters from the event
    origin = event['origin']
    destination = event['destination']
    departure_date = event['departure_date']

    # Call the flight search service to get the available flights
    flights = search_flights(origin, destination, departure_date)

    # Return the search results
    return {
        'statusCode': 200,
        'body': json.dumps(flights)
    }

2. Booking Creation:

def lambda_handler(event, context):
    """
    Handles the flight booking request.
    """
    # Extract the booking details from the event
    user_id = event['user_id']
    flight_id = event['flight_id']
    payment_method = event['payment_method']

    # Create the booking in the database
    booking_id = create_booking(user_id, flight_id, payment_method)

    # Return the booking details
    return {
        'statusCode': 200,
        'body': json.dumps({
            'booking_id': booking_id
        })
    }

3. Payment Processing:

def lambda_handler(event, context):
    """
    Handles the payment processing request.
    """
    # Extract the payment details from the event
    booking_id = event['booking_id']
    payment_method = event['payment_method']
    amount = event['amount']

    # Process the payment using a payment gateway
    payment_status = process_payment(booking_id, payment_method, amount)

    # Update the booking status in the database
    update_booking_status(booking_id, payment_status)

    # Return the payment status
    return {
        'statusCode': 200,
        'body': json.dumps({
            'payment_status': payment_status
        })
    }

Getting Started

To get started with the aws-samples/aws-serverless-airline-booking project, follow these steps:

1. Clone the repository:

git clone https://github.com/aws-samples/aws-serverless-airline-booking.git

2. Navigate to the project directory:

cd aws-serverless-airline-booking

3. Deploy the application using the AWS Serverless Application Model (SAM) CLI:

sam build
sam deploy --guided

4. Follow the prompts to configure the deployment, including the AWS region, stack name, and other parameters.

5. Once the deployment is complete, you can access the application using the provided URL.