A Real World Comparison Between Cloudflare Workers and Fastly Compute Edge

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  4 907 7.4 JavaScript

  Discontinued A collection of starter templates and examples for Cloudflare Workers and Pages (by cloudflare)

  

Nice post. I like the focus on developer experience rather than just performance.

Workers' implementation of pipeTo() is indeed optimized to avoid entering the JavaScript isolate at all during the operation. I agree this probably explains the performance difference here.

For setting `Content-Length` on a streaming response, Cloudflare has a non-standard extension called `FixedLengthStream`. It works the same as an identity `TransformStream` except you pass the expected stream length to the constructor.

Example: https://cloudflareworkers.com/#c2a014c7f67df83f9ad3ea90e9c60...

We would of course prefer to implement a standard API here, but at present there doesn't seem to be one.

(I'm the tech lead for Cloudflare Workers.)

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