CloudFront routes the HTTP request to the matching API Gateway.įigure 1 architecture diagram is a free-form mixture between a structure diagram and a behavior diagram.The function matches the header value to data fetched from an Amazon DynamoDB table, then modifies the Host header and path of the request and returns it to CloudFront.CloudFront invokes the function for the Origin Request event.User sends an HTTP request to CloudFront, including a version header.The numbered labels in Figure 1 correspond to the following text descriptions: Amazon CloudFront is a global content delivery network (CDN) service built for high-speed, low-latency performance, security, and developer you run functions that customize the content that CloudFront delivers. The architecture is based on Implementing header-based API Gateway versioning with Amazon CloudFront from the AWS Compute Blog, which uses the AWS to dynamically route the request to the targeted API version.Īmazon API Gateway is a fully managed service that makes it easier for developers to create, publish, maintain, monitor, and secure APIs at any scale. All diagrams in this post were rendered from a text-based domain specific language using a diagrams-as-code tool instead of being drawn with graphical diagramming software. Each diagram adds to the vocabulary and graphical notation of Sequence Diagrams, then shows how the diagram deepened understanding of the architecture. This post takes a sample architecture and iteratively builds out a set of Sequence Diagrams. Using Sequence Diagrams, you can explore additional usage scenarios and enrich your understanding of the distributed architecture while continuing to communicate visually. As the level of detail increases, so does the diagram’s size, density, and layout complexity. Architecture diagrams visually communicate and document the high-level design of a solution.

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