EvaporateJS2 posts

Image for "Segment S3 uploads by Cognito user"

Image for "Segment S3 uploads by Cognito user"

AWS14 February, 2017

Segment S3 uploads by Cognito user

Use S3 policies to isolate Cognito users into subdirectories of a bucket.

Image for "Calculate AWS v4 Signature with client-side JavaScript"

Image for "Calculate AWS v4 Signature with client-side JavaScript"

AWS10 February, 2017

Calculate AWS v4 Signature with client-side JavaScript

Use AWS Cognito credentials to authenticate requests directly in the browser.