Nx: ng serve stops working for 'node-app' apps after ng update

Created on 20 Oct 2018  路  1Comment  路  Source: nrwl/nx

First of all, I'm super happy that Nx supports node-apps! Been waiting for this and super pleased with it.

Yesterday I tried to upgrade my project to Angular 7, and it seems like this broke properly serving the node-app using ng serve.

I understand that Angular 7 might not be supported yet, but I figured it would be good to get this issue out, other people will probably encounter the same issues and search for it :)

Steps to reproduce:

# Create new workspace
create-nx-workspace beeman
# Create a node-app
ng g node-api api
# Start the node-app
ng serve api

The default app gets served and listens on port 333:

Starting type checking service...
Using 6 workers with 2048MB memory limit
Type checking in progress...
Hash: 0ad7224d6b0f94552a33
Version: webpack 4.21.0
Time: 649ms
Built at: 10/20/2018 4:42:36 PM
  Asset      Size  Chunks             Chunk Names
main.js  5.09 KiB    main  [emitted]  main
Entrypoint main = main.js
[./apps/api/src/main.ts] 465 bytes {main} [built]
[express] external "express" 42 bytes {main} [built]
[0] multi ./apps/api/src/main.ts 28 bytes {main} [built]
Debugger listening on ws://127.0.0.1:9229/1a5f4fc4-4123-4f1f-9d93-ecbc639ef090
For help, see: https://nodejs.org/en/docs/inspector
Listening at http://localhost:3333
No type errors found
Version: typescript 2.9.2
Time: 3479ms

However, after upgrading Angular to the latest version (using ng update @angular/cli @angular/core), this somehow stops working:

Starting type checking service...
Using 6 workers with 2048MB memory limit
Type checking in progress...
Hash: 7d25687415eb0018bb35
Version: webpack 4.9.2
Time: 663ms
Built at: 10/20/2018 4:44:16 PM
  Asset      Size  Chunks             Chunk Names
main.js  4.13 KiB    main  [emitted]  main
Entrypoint main = main.js
[./apps/api/src/main.ts] 465 bytes {main} [built]
[express] external "express" 42 bytes {main} [built]
[0] multi ./apps/api/src/main.ts 28 bytes {main} [built]
No type errors found
Version: typescript 3.1.3
Time: 3590ms

The app gets build, but never starts listening.

Workaround

My (sort of) workaround is to start the node-app in build mode with watcher, then use nodemon to serve version from ./dist. This does however not reload the API when one of the libraries changes, so it's half a workaround :)

ng build api --watch
nodemon dist/apps/api/main

Demo

I got a demo repo here: https://github.com/beeman/beeman-nx-workspace

bug

Most helpful comment

Thanks @beeman, V7 support is coming soon and this is confirmed to be working! ;)

>All comments

Thanks @beeman, V7 support is coming soon and this is confirmed to be working! ;)

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