Présentation de Michael Lopez et Stephane Martarello de CrossKnowledge lors du meetup des développeurs mobile de la Cote d'Azur sur le thème de Dimensionnement d'images avec AWS Lambda: Comment mettre en place une solution serverless simple et peu couteuse basée sur Amazon API Gateway et Lambda pour dimensionner automatiquement les images uploadées sur votre application (exemple : Vignettes de profile) Rejoignez nous pour notre prochain meetup: https://www.meetup.com/preview/Developpement-Mobile-Android-iOS-Cote-d-Azur

1. AWS User Groups
Serverless solution to resize images on the fly
05 Septembre 2018
COTE D’AZUR

2. AWS Services
• Cloudfront
• Amazon CloudFront is a global content delivery network (CDN) service that securely delivers data,
videos, applications, and APIs to your viewers with low latency and high transfer speeds
• S3
• Object storage built to store and retrieve any amount of data from anywhere
• API Gateway
• Amazon API Gateway is a fully managed service that makes it easy for developers to create, publish,
maintain, monitor, and secure APIs at any scale.
• Lambda
• AWS Lambda lets you run code without provisioning or managing servers. You pay only for the compute
time you consume - there is no charge when your code is not running.
Amazon
Lambda
Amazon S3
CloudFront

3. Global architecture and workflow
Amazon S3
API Gateway
Cloudfront
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4. Cloudfront configuration CloudFront

5. S3 Configuration Amazon S3
<RoutingRules>
<RoutingRule>
<Condition>
<KeyPrefixEquals>user/thumbnail/</KeyPrefixEquals>
<HttpErrorCodeReturnedEquals>404</HttpErrorCodeReturnedEquals>
</Condition>
<Redirect>
<Protocol>https</Protocol>
<HostName>your-api.domain.com</HostName>
<ReplaceKeyPrefixWith>ckls-user-thumbnails-eu?key=</ReplaceKeyPrefixWith>
<HttpRedirectCode>307</HttpRedirectCode>
</Redirect>
</RoutingRule>
</RoutingRules>

6. API Gateway Configuration

7. DEMO

8. S3 Usage Amazon S3

9. AWS Lambda usage Amazon
Lambda

10. AWS Lambda cost Amazon
Lambda

11. COTE D’AZUR