deploy open-next bundle without sst on aws

[NikolozMS]

guys i've bundled nextjs application with open-next and trying to host it on aws, but after bundling i have only .cache files for ISR (inside cache folder), there are not html files, how these files should be handled and what am i supposed to do ? (without sst) thanks in advanced

[fwang]

@NikolozMS in SST both static assets and ISR cache are uploaded to the same s3 bucket. Assets to the _assets folder, and cache to the _cache folder. And the CloudFront S3 origin path points to the _assets folder. You can do something similar. Here's the relevant code — https://github.com/sst/sst/blob/master/packages/sst/src/constructs/NextjsSite.ts#L346-L358

[NikolozMS]

hello @fwang , thanks for response.

I want to deploy open-next bundled project to AWS, i read open-next documentation about architecture and how does ISR work, but I have some misunderstandings about how the whole process work

for example:

• How does revalidation function communicate with server function if it does
• How does server function check if the S3 cache is outdated and how does it update the cache

[conico974]

We use the cache handler properties by next to provide our own handler https://github.com/sst/open-next/blob/main/packages/open-next/src/adapters/cache.ts https://nextjs.org/docs/pages/building-your-application/deploying#configuring-caching

How does revalidation function communicate with server function if it does

https://open-next.js.org/inner_workings/isr

• The revalidation-function polls the message from the queue and makes a HEAD request to the route with the x-prerender-revalidate header.
• The server-function receives the HEAD request and revalidates the cache.

  How does server function check if the S3 cache is outdated

We check lastModified from the S3 response

how does it update the cache

We just write the new data to S3

[NikolozMS]

thanks fwang <3

[conico974]

Not really an issue, if you have more questions you should ask them on discord