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AppSync use / access CloudFront Viewer Headers

1

CloudFront has a number of headers regarding viewer information that we would like to access in our AppSync vtl / resolvers, see: https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/using-cloudfront-headers.html

Specifically, we'd like to use CloudFront-Viewer-Country-Region

In a 'normal' Cloudfront -> S3 origin for example, we would add an Origin request policy to forward the headers on.

How is this possible in Appsync please?

Argomenti
ServerlessFront-end web e dispositivi mobiliIntegrazione delle applicazioniNetworking e distribuzione di contenuti
Tag
AWS AppSyncAmazon CloudFront
Lingua
English
chris5argent
posta un anno fa645 visualizzazioni
2 Risposte
1

Hey the way I found to solve it is to put Cloudfront distribution in front of the app-sync one. You can configure this new CF distribution to include the headers so they can be used in the resolvers.

P.S.: AWS it would be nice to be able to to configure the header behavior of the CF you guys create for the AppSync instance so we do no need to do this :)

ignaciolarranaga
con risposta un anno fa
  • chris5argent
    un anno fa

    Thanks - yeah, this is what we've ended up doing by adding a kind of reverse proxy to our front end's cloudfront dist.

0

You can access all request headers via the $context.request.headers construct.

AWS
AWS-User-4340776
con risposta un anno fa
  • chris5argent
    un anno fa

    Hi thanks - yes we know this, but the point is it doesn't include all the headers from cloudfront.

    e.g. we get cloudfront-viewer-country but not cloudfront-viewer-country-region

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