[RFC] Middleware API for cross-environment organization and end-user extensibility

[thebigredgeek]

Discuss!

[thebigredgeek]

something like this

 //Stdout would be default console.log middleware
import debug, { StdoutMiddleware } from 'debug';
const log = debug('log');
// Add some sort of new middleware element
log.use((data, next) => ... )
// replace Stdout (console.log) with console.info at same position in middleware array
log.replace(StdoutMiddleware, (data, next) => {
  console.info.apply(console, data);
  next(); 
});

// maybe create a stderr only log for failed uploads:
const appUploadLog = debug('app:upload');

const appUploadErrLog = appUploadLog
  .child('error')
  .replace(StdoutMiddleware, (data, next) => {
    console.error.apply(console, data);
    next()
  });

[Qix-]

Why not just use EventEmitters? This module doesn't need to be super over-enterprised with middleware and the like.

[Qix-]

Maybe not with event emitters, but #556 has a newer and more relevant discussion on this.

Closing in favor of that issue.