nodejs redis Q promises, how to make it work?

node.js, promise, q, redis

Solution

Q.all([Q.ninvoke(client, 'get', 'user:1:id'),
       Q.ninvoke(client, 'get', 'user:1:username')]).then(function (data) {
  var id = data[0];
  var username = data[1];
  // do something with them
});

See https://github.com/kriskowal/q#adapting-node

Problem

I am trying to get few values from redis, combine them and eventually send. But I just can't make those promises work. This is the simple `get` functions from redis ``` client.get('user:1:id',function(err,data){ // here I have data which contains user ID }); client.get('user:1:username',function(err,data){ // here I have data which contains username }); ``` Now I want to get `ID` and `username` and send them, but I have no idea how to make that work. I manage to make it work with callbacks but it is very messy result, so then i tried to wrap anonymous functions into `Q.fcall` and after call `.then` which looks something like that ``` client.get('user:1:id',Q.fcall(function(err,data){ return data; }).then(function(val) { // do something })); ``` but that gives me error for too many arguments been passed and I'm not even sure if that would help me even if it would work.

Original source