Add jsend to express.js response object

app.coffee

require './lib/jsend'

jsend.coffee

# adds jsend methods to the express response object
express = require 'express'

res = express.response

res.jerror = (code, message) ->
  if code instanceof Error
    if code.message and code.message.indexOf(' :: ') isnt -1 # if we can split by :: then use that for name and message
      codeAndMessage = code.message.split(' :: ')
      code = codeAndMessage[0]
      message = codeAndMessage[1]
    else # standard error message
      message = code.message
      code = code.name
  this.send({status: 'error', code: code, message: message})
    
res.jsend = (result) ->
  this.send({status: 'success', data: result})