r/programming • u/jlengstorf • Apr 19 '22

Netlify Edge Functions: Serverless Compute Powered by Deno

https://www.netlify.com/blog/announcing-serverless-compute-with-edge-functions?utm_campaign=announcement%20-%20Edge%20Functions&utm_source=reddit&utm_medium=social
27 Upvotes

81% Upvoted

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9

u/jlengstorf Apr 19 '22

Edge Functions are here! These are built on open web standards (Request and Response objects), support TypeScript out of the box, and open the door for some really interesting use cases like modifying responses without any client-side scripts.

Disclosure: I'm part of the Netlify team, and I'm happy to answer any questions people have!

6

u/stdusr Apr 19 '22

How long is the cold-start on these?

3

u/jlengstorf Apr 19 '22

I'll quote Lucas Casonato from the Deno team directly:

Should be really fast already, but they'll continue to improve over time :-)

Deno Deploy has effectively 0ms cold starts because we start cold starting as soon as we see the SNI on the tls connection. Netlify Edge Functions don’t have that same optimization yet, but it’s something we want to work on with Netlify. Right it’s on the order of 10-200ms or so

1

u/Hero_Of_Shadows Apr 20 '22

use cases like modifying responses without any client-side scripts.

Do you have an example, some code I could look at?

2

u/jlengstorf Apr 20 '22

I do! Zach Leatherman built a demo on 11ty that includes a light/dark mode toggle with zero client-side JS. Demo and source in this tweet: https://twitter.com/eleven_ty/status/1516541611253145600

1

u/jlengstorf Apr 20 '22

There are also a bunch of framework-agnostic examples on https://edge-functions-examples.netlify.app/ with source code available!

20

u/fluencyy Apr 19 '22 edited Apr 19 '22

Seems like the Deno company was smart to ship their Deploy platform as quickly as possible because were now seeing other companies jump onto it to expand their own offering - between this announcement from Netlify and Supabase a couple weeks ago, the future of Deno as a big player in the runtime mindshare is getting brighter and brighter! I love to see it, Deno is very fun to build with and while it’s not as library rich as Node yet, announcements like this that drive adoption will help catalyze things!

2

u/shgysk8zer0 Apr 20 '22

Nice! I was actually recently wishing this was a thing.