Write in TypeScript?

[ORESoftware]

I am looking for a WebSockets library written in TypeScript

https://www.quora.com/unanswered/Is-there-a-Websocket-library-for-Node-js-written-in-TypeScript

it looks like @types/sockjs exists, but since it's packaged separately, often the types become out-of-sync.

[brycekahle]

The benefit of using TypeScript for this library is small. FYI @types/sockjs is not maintained by SockJS folks either.

[ORESoftware]

It's for the end user, more than anything, end user gets reliable types, whereas @types/sockjs is pretty reliably going to be out of sync. imo it's sort of criminal to not have types for a library when it's an available tool, maybe 50% of people are using VSCode or Jetbrains to do their JS stuff and both IDEs are well geared to handle .ts files.

[brycekahle]

This library is stable, and the interface changes very infrequently, and then in backwards-compatible ways if possible.

imo it's sort of criminal to not have types for a library

Just because you want a feature, does not make it mandatory. This library is in maintenance mode. Changes are only made when the benefit outweighs the cost.

[ORESoftware]

I understand. One benefit of TS is that you can introduce types gradually, but there is some cognitive overhead to managing a compile step.

You should be able to do something like this:

dist/
src/

and in src/ you have:

a.js
b.ts

and it will transpile to:

dist/
  a.js
  b.d.ts
  b.js

I am no the only one looking for libraries that go through the trouble of generating a typed interface, which easier to consume. I did a search for "websocket library written in typescript", and there aren't any as far as I can tell. 'ws' would be a good candidate for this and this library as well.