nextjs - 💡(How to fix) Fix A Node.js module is loaded error in instrumentation.ts [1 comments, 2 participants]

import { registerOTel } from "@vercel/otel";

export function register() {
  registerOTel("myapp");

  // HINT: // https://github.com/vercel/next.js/issues/51404
  // Make sure commands gracefully respect termination signals (e.g. from Docker)
  // Allow the graceful termination to be manually configurable
  if (
    process.env.NEXT_RUNTIME === "nodejs" &&
    process.env.NEXT_MANUAL_SIG_HANDLE === "true"
  ) {
    process.on("SIGTERM", async () => {
      console.info("Received SIGTERM: ", "starting graceful shutdown");
      // TODO: gracefully shutdown any resources
      await shutdown();
    });
    process.on("SIGINT", async () => {
      console.info("Received SIGINT: ", "starting graceful shutdown");
      await shutdown();
    });
  }
}

async function shutdown() {
  const fs = await import("node:fs");
  fs.writeFileSync("/tmp/shutdown", "1");

  setTimeout(() => {
    process.exit(0);
  }, 20 * 1000); // 20 secs shutdown timeout
}

---

console:dev: (node:9997) Warning: `--localstorage-file` was provided without a valid path
console:dev: (Use `node --trace-warnings ...` to show where the warning was created)
console:dev:  ⚠ ./apps/console/src/instrumentation.ts:30:5
console:dev: Ecmascript file had an error
console:dev:   28 |
console:dev:   29 |   setTimeout(() => {
console:dev: > 30 |     process.exit(0);
console:dev:      |     ^^^^^^^^^^^^
console:dev:   31 |   }, 20 * 1000); // 20 secs shutdown timeout
console:dev:   32 | }
console:dev:   33 |
console:dev: 
console:dev: A Node.js API is used (process.exit at line: 30) which is not supported in the Edge Runtime.
console:dev: Learn more: https://nextjs.org/docs/api-reference/edge-runtime
console:dev: 
console:dev: 
console:dev:  ⚠ ./apps/console/src/instrumentation.ts:26:20
console:dev: Ecmascript file had an error
console:dev:   24 |
console:dev:   25 | async function shutdown() {
console:dev: > 26 |   const fs = await import("node:fs");
console:dev:      |                    ^^^^^^^^^^^^^^^^^
console:dev:   27 |   fs.writeFileSync("/tmp/shutdown", "1");
console:dev:   28 |
console:dev:   29 |   setTimeout(() => {
console:dev: 
console:dev: A Node.js module is loaded ('node:fs' at line 26) which is not supported in the Edge Runtime.
console:dev: Learn More: https://nextjs.org/docs/messages/node-module-in-edge-runtime

---

Operating System:
  Platform: darwin
  Arch: arm64
  Version: Darwin Kernel Version 25.0.0: Wed Sep 17 21:41:45 PDT 2025; root:xnu-12377.1.9~141/RELEASE_ARM64_T6000
  Available memory (MB): 65536
  Available CPU cores: 10
Binaries:
  Node: 25.1.0
  npm: 11.6.2
  Yarn: N/A
  pnpm: 10.20.0
Relevant Packages:
  next: 16.0.1
  eslint-config-next: N/A
  react: 19.2.0
  react-dom: 19.2.0
  typescript: 5.9.3
Next.js Config:
  output: standalone