promises.coffee

Promise = require 'bluebird'

methodB = ->
  p = new Promise (resolve, reject)->
    setTimeout ->
      console.log 'doing methodB'
      reject Error('failed b')
    , 1000
  p.error (e)->
    console.log 'log error to methodB.log'
    e
  p
  
  
methodC = ->
  p = new Promise (resolve, reject)->
    setTimeout ->
      console.log 'methodC'
      reject Error('failed c')
    , 1000
  p.error (e)->
    console.log 'log error to methodC.log'
    e
  p
  

methodA = ->
  console.log 'doing methodA'
  methodB()
  .then -> 
    methodC()
  .error (e)->
    console.log "error executing methodA #{e}"
    Promise.reject e

#methodA = ->
#  console.log 'doing methodA'
#  methodB()
#  .then ->
#    methodC()
#  .catch MethodBException, (e)->
#    console.log "error executing methodB #{e}"
#  .catch MethodCException, (e)->
#    console.log "error executing methodC #{e}"

methodA()
.then (r)->
  console.log "success #{r}"
.error (e)->
  console.log "error doing A please alert the client #{e}"

###
doing methodA
doing methodB
log error to methodB.log
error executing methodA Error: failed b
error doing A please alert the client Error: failed b
###