Q + node_redis

qredis.coffee

# Applies Q.nbind to all redis operations and returns a wrapped client
_ = require("underscore")._
Q = require "q"

nbindOps = (client) ->
  functions = _.functions client

  # All the ops are available as upper/lowercase functions, I exploit this
  # to filter out the Redis operations from the other functions of the client
  #
  ops = functions.filter (f) -> f.toUpperCase() is f
  lc = (op.toLowerCase() for op in ops)
  ops = ops.concat(lc)
  p = {}
  for op in ops
    p[op] = Q.nbind client[op], client

  p["multi"] = p["MULTI"] = ->
    m = client.multi.call client, arguments
    m.exec = Q.nbind m.exec, m
    m
  p

nbind = (client) ->
  client.q = nbindOps(client)
  client

module.exports = 
  nbindOps: nbindOps
  nbind: nbind

Nice hack on figuring out which methods are redis commands 💎

why not use nfcall ?