About This Architecture

Three-tier serverless API architecture for a dog breeds lookup service built entirely on AWS managed services. User requests flow from S3-hosted static frontend through API Gateway to Lambda functions, which query DynamoDB for breed data and return results. This pattern eliminates server management, scales automatically with demand, and minimizes operational overhead—ideal for read-heavy APIs with unpredictable traffic. Fork this diagram on Diagrams.so to customize endpoints, add authentication, or extend with additional Lambda functions and data sources.

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How do I build a serverless REST API on AWS with S3, API Gateway, Lambda, and DynamoDB?

This diagram shows a three-tier serverless architecture where S3 hosts the static frontend, API Gateway routes GET requests to Lambda functions, and Lambda queries DynamoDB for dog breed data. The pattern eliminates server management and scales automatically, making it ideal for read-heavy APIs with variable traffic patterns.