Description

Nest framework TypeScript starter repository.

Note: This is a testing running Nest.js with Bun

Setup

nestjs-bun-test on  main [?] via 🍞 v0.6.7 via  v20.2.0 
❯ neofetch
            -```````````                  iiaku@iiaku-desktop 
          `-+/------------.`              ------------------- 
       .---:mNo---------------.           OS: Solus x86_64 
     .-----yMMMy:---------------.         Host: MS-7C96 1.0 
   `------oMMMMMm/----------------`       Kernel: 6.3.4-237.current 
  .------/MMMMMMMN+----------------.      Uptime: 1 day, 14 hours, 46 mins 
 .------/NMMMMMMMMm-+/--------------.     Packages: 893 (eopkg), 29 (flatpak) 
`------/NMMMMMMMMMN-:mh/-------------`    Shell: zsh 5.9 
.-----/NMMMMMMMMMMM:-+MMd//oso/:-----.    Resolution: 5120x1440 
-----/NMMMMMMMMMMMM+--mMMMh::smMmyo:--    DE: GNOME 43.5 
----+NMMMMMMMMMMMMMo--yMMMMNo-:yMMMMd/.   WM: Mutter 
.--oMMMMMMMMMMMMMMMy--yMMMMMMh:-yMMMy-`   WM Theme: Materia-dark 
`-sMMMMMMMMMMMMMMMMh--dMMMMMMMd:/Ny+y.    Theme: Adwaita [GTK2/3] 
`-/+osyhhdmmNNMMMMMm-/MMMMMMMmh+/ohm+     Icons: Papirus [GTK2/3] 
  .------------:://+-/++++++oshddys:      Terminal: gnome-terminal 
   -hhhhyyyyyyyyyyyhhhhddddhysssso-       CPU: AMD Ryzen 7 3700X (16) @ 3.600GHz 
    `:ossssssyysssssssssssssssso:`        GPU: AMD ATI Radeon RX 6800/6800 XT / 6900 XT 
      `:+ssssssssssssssssssss+-           Memory: 17489MiB / 32029MiB 
         `-/+ssssssssssso+/-`
              `.-----..`                                          
                                                                  



nestjs-bun-test on  main [+] via 🍞 v0.6.7 via  v20.2.0 
❯ node -v
v20.2.0

nestjs-bun-test on  main [+] via 🍞 v0.6.7 via  v20.2.0 
❯ bun -v
0.6.7

nestjs-bun-test on  main [+] via 🍞 v0.6.7 via  v20.2.0 
❯ nest -v
9.5.0

Created project with

$ nest new nestjs-bun-test

Then installed packages with:

$ bun install

Built project with

$ bun build

This will basically run nest build so will build as usual

Ran project with

$ bun start:prod

This won't work

nestjs-bun-test on  main [?] via 🍞 v0.6.7 via  v20.2.0 
❯ bun start:prod
$ bun dist/main.js
[Nest] 139970  - 06/03/2023, 2:55:00 PM     LOG [NestFactory] Starting Nest application...
[Nest] 139970  - 06/03/2023, 2:55:00 PM     LOG [InstanceLoader] AppModule dependencies initialized +9ms
[Nest] 139970  - 06/03/2023, 2:55:00 PM     LOG [RoutesResolver] AppController {/}: +5ms
[Nest] 139970  - 06/03/2023, 2:55:00 PM     LOG [RouterExplorer] Mapped {/, GET} route +1ms
[Nest] 139970  - 06/03/2023, 2:55:00 PM     LOG [NestApplication] Nest application successfully started +2ms
error: script "start:prod" exited with code 11 (SIGSEGV)

$ bun run dist/main.js

This won't work as well

nestjs-bun-test on  main [?] via 🍞 v0.6.7 via  v20.2.0 
❯ bun run dist/main.js 
[Nest] 142771  - 06/03/2023, 3:06:51 PM     LOG [NestFactory] Starting Nest application...
[Nest] 142771  - 06/03/2023, 3:06:51 PM     LOG [InstanceLoader] AppModule dependencies initialized +8ms
[Nest] 142771  - 06/03/2023, 3:06:51 PM     LOG [RoutesResolver] AppController {/}: +6ms
[Nest] 142771  - 06/03/2023, 3:06:51 PM     LOG [RouterExplorer] Mapped {/, GET} route +1ms
[Nest] 142771  - 06/03/2023, 3:06:51 PM     LOG [NestApplication] Nest application successfully started +2ms
[1]    142771 segmentation fault (core dumped)  bun run dist/main.js

Also passing bun as binary to nest cli won't work

nestjs-bun-test on  main [?] via 🍞 v0.6.7 via  v20.2.0 
❯ bun start
$ nest start nestjs-bun-test --exec \"bun\"
error: script not found "/home/iiaku/dev/nestjs-bun-test/dist/main"
error: script "start" exited with code 1 (SIGHUP)

However running:

$ bun run src/main.ts

You can also watch changes to "mimic" the start:dev script since that one won't work as well when binding bun's binary

$ bun --watch run src/main.ts

Seems to work, at least starting the server, however the route being called won't work and raise some error. I tried to return something very simple (a string) see /src/app.controller.ts and it did work. The error was raised, because it seems running src/main.ts does not seems to attach class's service properly as you can see appService is undefined when exposing this.

nestjs-bun-test on  main [!?] via 🍞 v0.6.7 via  v20.2.0 
❯ bun run src/main.ts        
[0.02ms] ".env"
[Nest] 145087  - 06/03/2023, 3:14:56 PM     LOG [NestFactory] Starting Nest application...
[Nest] 145087  - 06/03/2023, 3:14:56 PM     LOG [InstanceLoader] AppModule dependencies initialized +10ms
[Nest] 145087  - 06/03/2023, 3:14:56 PM     LOG [RoutesResolver] AppController {/}: +5ms
[Nest] 145087  - 06/03/2023, 3:14:56 PM     LOG [RouterExplorer] Mapped {/, GET} route +2ms
[Nest] 145087  - 06/03/2023, 3:14:56 PM     LOG [NestApplication] Nest application successfully started +1ms
{
  returning: "hello world",
  thisValue: {
    appService: undefined,
    getHello: [Function: getHello]
  }
}
{
  ENV_LOADED: "true"
}