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AWS · serverless · order processing

AWS Serverless Order Processing

This AWS serverless order-processing architecture routes customer requests through API Gateway to an order Lambda function. The function stores order state in DynamoDB and sends its operational outputs to SNS, EventBridge and CloudWatch. Customers also access product images in S3. This is a useful high-level view for explaining an event-aware serverless workflow; it does not attempt to show IAM policies, retry settings or a full fulfillment process.

Type Control-systems block diagramStandard Ogata / standard controls textbook conventionEngine schematex-blockdiagramUpdated 9/24/2026
AWS Serverless Orders
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The request

“Create an AWS serverless order processing diagram with customers, API Gateway, S3 images, an order Lambda, DynamoDB, SNS alerts, EventBridge, and CloudWatch.”

Then tryAdd an SQS queue before the order Lambda.Add a Lambda function that consumes EventBridge events.
What is in this drawing

Read the decisions behind it.

01API boundary

Accept orders through API Gateway.

02Compute model

Process requests in a Lambda function.

03Order state

Store orders in DynamoDB.

04Operational events

Publish notifications, events and logs.

Use it when the request path is serverless and order processing is event-aware.

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FAQ

Common questions

What is a serverless order-processing architecture?

It uses managed services such as API Gateway, Lambda and DynamoDB to receive, process and persist orders.

Why use EventBridge in an order flow?

It can distribute order-related events to other AWS services or applications.

What does CloudWatch show here?

It represents logs and operational monitoring for the Lambda-based workflow.