Do serverless function logs include edge-cached requests?

[rayshan]

Hi! Questions:

1. Do serverless function logs include edge-cached requests?
2. If so, is there a way to filter logs based on what's edge-cached and what isn't?

I'm using Logflare as the log drain, and I see edge caching working well in the response header.

[paulogdm]

Hello,

1. Negative. We don't log cache-hits or misses, only Serverless Executions.
2. Nope. See above.

[rayshan]

Wait is this right? Docs say:

"cacheId": <original request id when request is served from cache>,

And distinct counts of requestId and cacheId are different:

[paulogdm]

You are correct. It seems we do have logs for those requests. My apologies.

[chasers]

[paulogdm]

Final answer:

• All relevant requests accepted in Vercel will be piped if you are using "Log Drains". Using "Log Drains" is a must in production.
• For "Real-time Requests", we only record Serverless Functions executions.

If you have any further questions, please create your own discussion.

[chasers]

Ah like in your log UI you only get fn executions, thanks for clarifying. I had actually noticed that UI was missing some stuff a while ago but didn't realize it was all the static requests.

[chasers]

Like does this make sense?

https://vercel.com/integrations/logflare