`childProcess.stdin.write()` is not working

[yxshv]

Details

So I am trying to communicate with the tsserver and am trying to write to the tsserver stdin

import { spawn } from 'child_process';

const { stdin: input, stdout: output }  = spawn('./node_modules/.bin/tsserver', []);

input.setDefaultEncoding('utf-8')

setTimeout(start, 5000)

output.pipe(process.stdout);

const textDocument = {
  uri: 'file:///Users/balkrishnaverma/Documents/yash/testum/src/index.ts',
  languageId: 'typescript',
  version: 2,
  text: `type JustATest  = {
  a: string,
  b: number
}
const abcd: Jus
`
};

async function start() {
  input.cork()
  input.write(JSON.stringify({
    seq: 0,
    type: "request",
    command: "open",
    arguments: {
      file: "/Users/balkrishnaverma/Documents/yash/testum/src/index.ts",
      fileContent: textDocument.text,
      projectRootPath: "/Users/balkrishnaverma/Documents/yash/testum",
    }
  }))
  input.uncork()
}

but its not actually writing for some reason? when i pipe process.stdin.pipe(input) and type json from my terminal it works?

Node.js version

{
  node: '20.10.0',
  acorn: '8.10.0',
  ada: '2.7.2',
  ares: '1.20.1',
  base64: '0.5.0',
  brotli: '1.0.9',
  cjs_module_lexer: '1.2.2',
  cldr: '43.1',
  icu: '73.2',
  llhttp: '8.1.1',
  modules: '115',
  napi: '9',
  nghttp2: '1.57.0',
  nghttp3: '0.7.0',
  ngtcp2: '0.8.1',
  openssl: '3.0.12+quic',
  simdutf: '3.2.18',
  tz: '2023c',
  undici: '5.26.4',
  unicode: '15.0',
  uv: '1.46.0',
  uvwasi: '0.0.19',
  v8: '11.3.244.8-node.25',
  zlib: '1.2.13.1-motley'
}

Example code

No response

Operating system

MacOS

output of uname-a

Darwin Balkrishnas-MacBook-Air.local 21.6.0 Darwin Kernel Version 21.6.0: Thu Jul  6 22:18:26 PDT 2023; root:xnu-8020.240.18.702.13~1/RELEASE_X86_64 x86_64

Module and version

Not applicable.

[preveen-stack]

Can you try adding a \n at the end of write?

[yxshv]

Can you try adding a \n at the end of write?

I had tried that doesn't work

[RedYetiDev]

Is this issue still occuring? If not, feel free to self-close.