Programmable Edge

10 years ago, we said "database access is too slow." We used cache layer, memcached.

5 years ago, we said "access to web server is too slow." We used CDN, application cache.

2 years ago, we said "appCache is not flexible." We used ServiceWorker.

Now, we said "Edge (CDN included) is not flexible."

Introduction of fly

This is from fly readme,

, this is edge, I want to create this by more programmable, and get more flexible.

Example 1

https://vanilla-terrier-972.edgeapp.net/

This is just proxy to https://www.moneyforward.vn .

This is getting-started from https://github.com/superfly/cdn#try-the-starter-app

import { backends, proxy, middleware, pipeline } from "@fly/cdn";

const mw = pipeline(
  middleware.httpsUpgrader,
  middleware.httpCache
)

const app = mw(
  proxy("https://www.moneyforward.vn")
);

fly.http.respondWith(app);

I wrote this, and deployed to fly. I can create edge by easy way!

Example 2

Provided example

fly.http.respondWith(function(request){
   return new Response("Hello! We support whirled peas.", { status: 200})
 })
 // if you'd prefer to be service worker compatibility, this is also supported:
 // around addEventListener('fetch', function(event){})

Example 3

Provided example

addEventListener('fetch', function (event) {
   event.respondWith(new Response('Redirecting',
     {
       headers: {
         'Location': 'https://fly.io/docs/apps/'
       },
       status: 302
     }
   ))
 })

Blog

Murahashi [Matt] Kenichi

Introduction of fly

Example 1

Example 2

Example 3

References

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