Ashley, a budding AWS engineer, used the Spring Pokédex app to identify a mysterious flower she found. The app allowed her to upload a photo of the plant, and it identified the species as Frangipani. Behind the scenes, the image was securely uploaded using S3-Presigned URLs, and a real-time notification system powered by Momento Topics awaited the results. The app used AWS Cognito for user management and CloudFront signed cookies to protect access to files. Ashley was impressed and wanted to learn more about the architecture behind the application. The Spring Pokédex architecture used CloudFront CDN with three behaviors pointing to different origins. The app used AWS API Gateway, Cognito authorizer, and Momento disposable tokens to manage user access and subscriptions. The app also used Lambda functions, SQS queues, and DynamoDB tables to process image uploads and store data. The app implemented rate limiting using Momento cache and secured secrets using AWS SSM Parameter Store or AWS Secrets Manager. Overall, the Spring Pokédex project demonstrated a modern serverless event-driven architecture.
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