errorhandling (express)

errorhandling.coffee

respondWithError (response, namespace, message, status) ->
  status = 500 if status?
  console.log namespace, message
  response.send "Mising guid", status

handleDelete (request, response) ->
  return respondWithError response, 'Blogs', 'Error - Missing guid in handleDelete', 400  if request.url.query.guid

  getBlogByGuid request.url.query.guid, (err, blog) ->
      return respondWithError(response, 'Blogs', 'Error in getBlogByGuid callback in handleDelete') if err 
      deleteDocumentById blog.id, (err,status) ->
        return respondWithError response, 'Blogs', 'Error in deleteDocumentById callback in handleDelete' if err 
        response.send 'Blog deleted'