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WebSockets cost us $1M on our AWS bill

(www.recall.ai)
362 points tosh | 1 comments | 06 Nov 24 18:50 UTC | HN request time: 0s | source
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pier25 ◴[06 Nov 24 21:08 UTC] No.42069421[source]▶
Why were they using websockets to send video in the first place?

Was it because they didn't want to use some multicast video server?

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dmazzoni ◴[07 Nov 24 07:06 UTC] No.42074245[source]▶
They join a 3rd-party meeting using a browser.

Then they capture the video from the meeting in Chromium.

Then they need to send that captured video to another process for compression and processing.

No, WebSockets isn't the most efficient, but there aren't that many options once you're capturing inside a web page.

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1. dilyevsky ◴[07 Nov 24 08:25 UTC] No.42074728[source]▶
Not totally sure but they probably extract video via Chrome DevTools Protocol which uses WebSocket as transport.