DashJS with AWS PreSigned Urls

[lpbonomi]

What is the best way to have dash use presigned urls for this? Take in consideration that dash is used in the frontend and the urls must be signed in the backend.

[vodlogic]

Generating a unique signature per URL might add too much latency to the stream, so you might want to consider generating a custom policy for signed URL where the resource property uses a wildcard on the variable part of the URL for segments.

Before playback commences, make an API call to your backend to generate and respond with the signature.

You can then use request modifier to add the signature to the URL.
Example here: http://reference.dashif.org/dash.js/latest/samples/advanced/extend.html

[lpbonomi]

Thanks @vodlogic! Looks like this is the right approach :)

[lpbonomi]

@vodlogic thanks for the previous response, but you can't use wildcards in S3 link. I'll try to find another way, but it looks like it will have to pre-sign each URL.

[vodlogic]

I believe that you can use the signed cookies approach to work around this assuming your media and API share the same top level domain.

https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/private-content-signed-cookies.html

If this is the case and you set the Domain directive of the cookie appropriately, the browser should automatically send the cookie for these requests, so no request modifier required.

[lpbonomi]

Yes, I've seen that, but the thing is that that approach only works if you use CloudFront