effect-orpc/node - effect-orpc

The effect-orpc/node entrypoint installs a Node AsyncLocalStorage bridge for Effect FiberRefs.

side-effect-import.ts

import "effect-orpc/node";

`withFiberContext`

import.ts

import { withFiberContext } from "effect-orpc/node";

withFiberContext(fn) captures the current Effect fiber refs and runs an async callback inside the Node bridge.

with-fiber-context.ts

await Effect.runPromise(
  Effect.gen(function* () {
    yield* Effect.annotateLogsScoped({ requestId: "req_123" });
    yield* withFiberContext(() => next());
  }),
);

When to import

Need	Import
Passive bridge across split `effect-orpc` runtime boundaries	`import "effect-orpc/node"`
Capture outer Effect request context before calling framework continuation	`import { withFiberContext } from "effect-orpc/node"`

See also

Last modified on June 15, 2026