Sink your streams.

var { Readable, Transform } = require('streamx');
var sink = require('lead');

// Might be used as a Transform or Writeable
var maybeThrough = new Transform({
  transform(chunk, cb) {
    // processing
    cb(null, chunk);
  },
});

Readable.from(['hello', 'world'])
  // Sink it to behave like a Writeable
  .pipe(sink(maybeThrough));

Takes a stream to sink and returns the same stream. Sets up event listeners to infer if the stream is being used as a Transform or Writeable stream and sinks it on nextTick if necessary. If the stream is being used as a Transform stream but becomes unpiped, it will be sunk. Respects pipe, on('data') and on('readable') handlers.

MIT