Using Effect in Temporal Workflow Code: Determinism Concerns and Edge Cases

import { proxyActivities } from "@temporalio/workflow";
import type * as activities from "./activities.ts";
import { Effect } from "effect";

const { greet } = proxyActivities<typeof activities>({
  startToCloseTimeout: "1 minute",
});

export async function helloWorldWorkflow(name: string): Promise<string> {
  console.log(`Workflow: Starting hello world workflow for ${name}`);

  await Effect.runPromise(Effect.gen(function* () {
    yield* Effect.sleep("5 seconds");
  }));

  const greeting = await greet(name);
  console.log(`Workflow: Received greeting: ${greeting}`);
  return greeting;
}