Support API JavaScript

[tachibana-shin]

Hi,

I think it would be great to have a JavaScript API for other compilers to use like tsup

Like it:

import { build } from "tsx"

build({
  entry: "src/main.ts",
  watch: true
})

[privatenumber]

Not sure if I follow what you're suggesting.

What's your use-case?

[tachibana-shin]

I am creating a framework and it needs a command to run typescript in development mode. I am intending to use tsx to run the compiled typescript script

[privatenumber]

You mean the uncompiled TypeScript code.

In your code, you can currently:

• spawn a tsx process
• use the new loader we just deployed: feat: expose node.js loader #9

I'll considering exporting a method that spawns tsx given a file path. But the JS API will be limited to a spawn because it needs to be read by the Loader API.

Would love to hear more about your use-case when you have more details.

[tachibana-shin]

I tried spawn but when something goes wrong the error message is all white text. I don't think I can debug if the error message is not so prominent

[privatenumber]

I believe the output stream needs to be TTY for colors to be outputted.

You can inherit the stdout to display colors: https://github.com/esbuild-kit/tsx/blob/a271f4d1773bfb0ffdd072aa36e996c6e8602b32/src/run.ts#L21-L25

[privatenumber]

Back to the original request.

You can now spawn a tsx process without losing color in stderr.

Is this request closable?

[tachibana-shin]

Closed