I took liberty of creating a couple of utility functions that can be injiected in Q to simplify
the workflow called Q.each and Q.genrun.
Here is an example of how i use them
Q = require 'q'A serialized version of Q.all
Q.each = (collection, iterator) ->
cur = Q()
promises = collection.map (item) ->
cur = cur.then ->
iterator(item)
Q.all(promises)A function that turns a generator into a promise
Q.genrun = (generator) -> Q.async(generator)()Example combined usage
client = require './client_promises'
Q.genrun ->
yield client.login('davide', 'pass')
console.log 'logged in'
posts = yield client.getPosts('alberto')
console.log 'got posts', posts
results = yield Q.each posts, (post) ->
console.log 'counting likes on post', post
client.countPostLikes(post)
yield client.logout()
console.log 'logged out'
yield results
.then (val) ->
console.log 'completed', val
.catch (e) ->
console.error 'ERROR:', e