I have a question

Hi, I’m so impressed by cls-rtracer so I researched about cls and cls-hooked.

I’m creating my module using cls-hooked to learn deeply.

I’ve following and trying this post: here

However, It’s a little bit different implemented code against your code. https://github.com/puzpuzpuz/cls-rtracer/blob/master/index.js#L61

And my code is :

const traceId = (opts: { test: number } | undefined): Middleware => {
  return async (ctx: Context, next: Function) => {
    // req and res are event emitters. We want to access CLS context inside of their event callbacks
    clsNamespace.bindEmitter(ctx.req);
    clsNamespace.bindEmitter(ctx.res);

    const traceID = uuidv4();

    clsNamespace.run(() => {
      clsNamespace.set('traceID', traceID);
      return next();
    });
  };
};

I’m wondering why you didn’t use clsNamespace.run() . I think I’m not enough to understand at all. Is it same working code?

best wishes.

Steve.

[puzpuzpuz]

@love8587 no problem at all. I’m glad to be able to help.

I’ll close this issue as the question seems to be answered. Feel free to reopen it or create another one.

[love8587]

@puzpuzpuz many thanks. That’s very important and helpful to me. My code is starting to look very similar to your code. 😃