sinter-each-sinter.js

var Redis = require('redis-stream')
  , client = new Redis('localhost', 6379, 0)
  , stream = client.stream()

// this will get an intersection of all the elements in
// `set1`, `set2` & `set3` and then it will use each of the members
// in the resulting intersection as a key in a `sinter` with `subset1`
// and each of those resulting sets will be piped to stdout
// this will not use pipelining and will call `sinter subset1 member` once
// for every member of the original intersection

stream
  .pipe(client.stream('sinter', 'subset1'))
  .pipe(process.stdout)

// if you want `sinter` here to function as `sinterstore` 
// while still returning the resulting set, then you can 
// also save this to another set like `sinterstore` does

stream.pipe(client.stream('sadd', 'my-sinterstore-result-store'))

// kick it off
stream.redis.write(Redis.parse([ 'sinter', 'set1', 'set2', 'set3' ]))