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Guidance for Serverless Reservation System for Lodging on AWS

Overview

This Guidance demonstrates how to build a highly available lodging reservation system using multiple serverless compute and database services, each tailored for specific functionalities. It showcases the services employed to support the back-end of an administration portal, inventory management, and the search and book functionalities for booking engines, mobile apps, and third-party systems. With this Guidance, you can develop a consistent, low-latency inventory and booking service capable of handling any scale.

How it works

This architecture diagram shows how to build a serverless, microservice-based, and central reservation system.

Download the architecture diagram PDF 

Well-Architected Pillars

The architecture diagram above is an example of a Solution created with Well-Architected best practices in mind. To be fully Well-Architected, you should follow as many Well-Architected best practices as possible.

EventBridge allows you to respond to events in real-time, automating responses based on changes in your AWS environment. Amazon CloudWatch monitors AWS resources and applications, providing insights into performance, operational health, and overall status so you can take proactive measures to maintain operational excellence. These services enable the building and operation of reliable, scalable, and efficient systems aligned with business objectives.

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AWS Identity and Access Management (IAM) manages access to AWS resources, defining and enforcing least privilege access and supporting multi-factor authentication (MFA) for enhanced security. Amazon Cognito simplifies user authentication and authorization, enabling secure application access while protecting user data. AWS CloudTrail provides visibility into account activity, auditing, monitoring, and compliance with security policies. EventBridge automates responses to security events, such as rotating access keys or disabling compromised resources, fortifying the overall security posture.

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EventBridge simplifies event management and routing, enabling reliable event-driven architectures. Aurora Serverless automatically scales database capacity based on demand for high availability and fault tolerance. Additionally, Fargate delivers a reliable and scalable infrastructure for containerized applications without managing servers or clusters. Location Service provides reliable and accurate location data, contributing to overall application reliability.

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CloudFront efficiently delivers content by caching at edge locations, reducing latency, and improving the user experience. DynamoDB offers fast and scalable NoSQL database performance, delivering single-digit millisecond response times at any scale, making it suitable for applications with intense read/write traffic and high-performance requirements.

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Amazon S3 provides cost-effective storage and content delivery—you pay only for the storage you use. Lambda provides serverless computing, reducing infrastructure expenses. Further, Lambda enables running code without provisioning or managing servers so that you only pay for consumed compute time.

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Lambda and Fargate, serverless compute services, contribute to sustainability efforts by automatically provisioning and scaling resources based on actual workload demands. These services minimize waste, reduce energy consumption, and lower carbon emissions by optimizing resource utilization and eliminating idle resources.

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Disclaimer

The sample code; software libraries; command line tools; proofs of concept; templates; or other related technology (including any of the foregoing that are provided by our personnel) is provided to you as AWS Content under the AWS Customer Agreement, or the relevant written agreement between you and AWS (whichever applies). You should not use this AWS Content in your production accounts, or on production or other critical data. You are responsible for testing, securing, and optimizing the AWS Content, such as sample code, as appropriate for production grade use based on your specific quality control practices and standards. Deploying AWS Content may incur AWS charges for creating or using AWS chargeable resources, such as running Amazon EC2 instances or using Amazon S3 storage.