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ERR_STREAM_WRITE_AFTER_END when service is unavailable

See original GitHub issue

When the gateway routes to a route that is unavailable, the gateway crashes and return ERR_STREAM_WRITE_AFTER_END

Steps to reproduce the behavior:

  1. Run the gateway normally with a route that doesn’t exists like localhost:8081
  2. Try to access the route calling it through the gateway, for example localhost:8081/v1/test/aa
  3. See error

Expected behavior
The gateway should return ‘Service unavailable’ error

Returned behavior
The gateway return ‘Service unavailable’ error but the gateway crashes with stack:

      throw er; // Unhandled 'error' event

Error [ERR_STREAM_WRITE_AFTER_END]: write after end
    at writeAfterEnd (_http_outgoing.js:694:15)
    at ServerResponse.end (_http_outgoing.js:815:7)
    at node_modules/fast-proxy-lite/index.js:95:19
    at node_modules/fast-proxy-lite/lib/request.js:61:18
    at node_modules/pump/index.js:75:7
    at f (node_modules/once/once.js:25:25)
    at ClientRequest.<anonymous> (/node_modules/pump/index.js:31:21)
    at ClientRequest.f (node_modules/once/once.js:25:25)
    at ClientRequest.onerror (node_modules/end-of-stream/index.js:44:12)
    at ClientRequest.emit (events.js:388:22)
Emitted 'error' event on ServerResponse instance at:
    at writeAfterEndNT (_http_outgoing.js:753:7)
    at processTicksAndRejections (internal/process/task_queues.js:83:21) {

Additional context
The main.ts file:

 * The main class
import * as gateway from 'fast-gateway'
const PORT = 8080

const server = gateway({
  routes: [
      prefix: '/v1/test',
      target: 'http://localhost:8081'
}).start(PORT).then(() => {
  console.log(`API Gateway listening on ${PORT} port!`)

package.json file:

  "name": "test",
  "version": "1.0.0",
  "description": "test",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "build-ts": "tsc",
    "build": "npm run build-ts",
    "start": "node dist/main.js"
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "fast-gateway": "^3.0.0"
  "devDependencies": {
    "@types/express": "^4.17.12"

tsconfig.json file:

  "compilerOptions": {
    "outDir": "dist",
    "target": "es2017",
    "module": "commonjs",
    "sourceMap": true

Issue Analytics

  • State:closed
  • Created 2 years ago
  • Comments:10 (3 by maintainers)

github_iconTop GitHub Comments

iapaincommented, Dec 30, 2021

Hi @jkyberneees

Many thanks! It’s fixed in v3.0.2 😃


jkyberneeescommented, Nov 25, 2021

Hi @iapain, very much appreciated. I will reproduce and push the fix ASAP.

@Gemerich Hope you're feeling better :) +1

Read more comments on GitHub >

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