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Upgrading past `nx` & `@nrwl/node` v14.7.5 produces Nest runtime error while using `expressjs/errorhandler` middleware function

See original GitHub issue

Current Behavior

UPDATE

This has to do with the expressjs/errorhandler middleware function that json-server adds to it’s middleware list.

Get error ERROR [ExceptionsHandler] Cannot read properties of undefined (reading 'accept') at runtime when going to the json-server designated route in the Nest server in versions of nx & @nrwl/node >=v14.7.6.

Expected Behavior

Should work as it has for many nx versions. Upgrading nest by itself changes nothing, we were on v8.x.x and going to 9.x.x doesn’t result in this error. This is a direct result of the nx version & the @nrwl/node executor that the Nest server uses.

Wondering what has changed with the executor or Nx that has caused this error.

Steps to Reproduce

UPDATE

https://github.com/zjkipping/nx-expressjs-errorhandler-issues

Can reproduce in a generated Nest application on latest nx, nrwl/node, and @nestjs versions with the below code in the app.module.ts:

import { MiddlewareConsumer, Module, NestModule } from '@nestjs/common';

import * as errorhandler from 'errorhandler';

@Module({})
export class AppModule implements NestModule {
  configure(consumer: MiddlewareConsumer): void {
    consumer.apply(errorhandler()).forRoutes('/');
  }
}

https://github.com/zjkipping/nx-node-nest-issues The README should explain everything in the repo.

I created three workspaces. All 3 have the same Nest server setup (default generated) with json-server added and configured into the app.module.ts. There is a workspace for the version where things work (v14.7.5), one for where the runtime error starts (v14.7.6), and one for latest (v15.1.1).

Go into any of the three workspaces & run npm i and then npm start. Navigate to http://localhost:3333/api/ to see the error response & then look at the terminal/console for the full error (if you are on a workspace with errors at runtime).

The code in the app.module.ts for each workspace’s nest server application:

import { MiddlewareConsumer, Module, NestModule } from '@nestjs/common';

import * as jsonServer from 'json-server';

@Module({})
export class AppModule implements NestModule {
  configure(consumer: MiddlewareConsumer): void {
    const router = jsonServer.router({
      users: [{ id: '123asd', firstName: 'Foo', lastName: 'Bar', age: 33 }],
    });
    const middlewares = jsonServer.defaults({});
    consumer.apply(...middlewares, router).forRoutes('/');
  }
}

Failure Logs

[Nest] 4388  - 11/17/2022, 8:20:35 AM   ERROR [ExceptionsHandler] Cannot read properties of undefined (reading 'accept')
TypeError: Cannot read properties of undefined (reading 'accept')
    at Accepts.type.Accepts.types (C:\Users\zjkip\Documents\code\web\nx-node-nest-issues\15.1.1-workspace\node_modules\accepts\index.js:100:21)
    at errorHandler (C:\Users\zjkip\Documents\code\web\nx-node-nest-issues\15.1.1-workspace\node_modules\errorhandler\index.js:115:23)
    at Object.use (C:\Users\zjkip\Documents\code\web\nx-node-nest-issues\15.1.1-workspace\node_modules\@nestjs\core\middleware\utils.js:51:24)
    at C:\Users\zjkip\Documents\code\web\nx-node-nest-issues\15.1.1-workspace\node_modules\@nestjs\core\router\router-proxy.js:9:23
    at Layer.handle [as handle_request] (C:\Users\zjkip\Documents\code\web\nx-node-nest-issues\15.1.1-workspace\node_modules\express\lib\router\layer.js:95:5)
    at trim_prefix (C:\Users\zjkip\Documents\code\web\nx-node-nest-issues\15.1.1-workspace\node_modules\express\lib\router\index.js:328:13)
    at C:\Users\zjkip\Documents\code\web\nx-node-nest-issues\15.1.1-workspace\node_modules\express\lib\router\index.js:286:9
    at Function.process_params (C:\Users\zjkip\Documents\code\web\nx-node-nest-issues\15.1.1-workspace\node_modules\express\lib\router\index.js:346:12)
    at next (C:\Users\zjkip\Documents\code\web\nx-node-nest-issues\15.1.1-workspace\node_modules\express\lib\router\index.js:280:10)
    at cors (C:\Users\zjkip\Documents\code\web\nx-node-nest-issues\15.1.1-workspace\node_modules\cors\lib\index.js:188:7)<ref *2> IncomingMessage {
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    _expect_continue: false,
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    locals: [Object: null prototype] {},
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    write: [Function: write],
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}