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2.0.0-beta.50 - Reliable Dev Ports

v2.0.0-beta.50 is a small patch release with two Cloudflare fixes, both from John Royal.

Reliable Worker/Vite ports in alchemy dev

Section titled “Reliable Worker/Vite ports in alchemy dev”

Port-conflict detection in cloudflare-runtime wasn’t firing reliably, and it was worst with Vite. beta.50 has Vite listen on a random port and places a WorkerProxy in front of it, so ports are assigned deterministically and conflicts are actually detected. The conflict detection and WorkerProxy implementation in cloudflare-runtime were both tightened up along the way. (#513)

Binding an Output into a Worker’s env

Section titled “Binding an Output into a Worker’s env”

Passing an Output value — like another Worker’s URL — into a Worker’s env crashed at deploy time with Service not found: RuntimeContext:

const backend = yield* Cloudflare.Worker(/* ... */);


const website = yield* Cloudflare.Vite("Website", {
  rootDir: path.resolve(import.meta.dirname, "frontend"),
  env: {
    VITE_API_URL: backend.url.as<string>(), // crashed during deploy
  },
});

bindWorkerAsyncBindings was yield*ing the value, which called .bind() on the Output prematurely — and bind() needs RuntimeContext, which doesn’t exist at deploy time. beta.50 checks whether the value is an Output before yielding, so output references thread through to runtime as intended. (#514)

Where to go next

Section titled “Where to go next”