async-helper

var _ = require('lodash'); /**

• Callback response. It will read reach sequence of async function responses
• and create a final, single response with error or success.
• Escha function should set the err variable to true if a error occoured so
• this function will use it's response to create the HTML code and set the
• object that will be used by Express to send the response
• You should get this function response with Express and verify for error:
• response = asyncHelper.callback(err, response);
• res.status(response.code).send(response);
• @param {boolean} err Each async must set this argument to true
• if an error occoured
• @param {array} response Array with objects and arrays for each function
• executed using async
• Array example:
• [ // This array was generated in sequential functions

•  {
  

•  	code: 400,
  

•  	errors: []
  

•  },
  

•  [ // This array was generate in parallell as the last sequential function
  

•  	{},
  

•  	{
  

•  	'en-US': {
  

•  		mobletLabel: 'Fidelity Card',
  

•  		mobletHint: 'Create a fidelity card to your customers'
  

•  	},
  

•  	'pt-BR': {
  

•  		mobletLabel: 'Cartão de Fidelidade',
  

•  		mobletHint: 'Crie um cartão de fidelidade para seus clientes'
  

•  	},
  

•  	{}
  

•  ]
  

• ]
• @return {object} If any error occoured during the async execution,
• the response will have an HTML error code and an error. If no error occoured,
• the response will have a 200 (success) code and the messages given by each
• function
• Error example:
• {

•  code: 405,
  

•  error: 'Moblet already exists. Perform PUT to update'
  

• }
• Success example:
• {

•  code: 200,
  

•  errors: [],
  

•  'en-US': {
  

•  	mobletLabel: 'Fidelity Card',
  

•  	mobletHint: 'Create a fidelity card to your customers'
  

•  },
  

•  'pt-BR': {
  

•  	mobletLabel: 'Cartão de Fidelidade',
  

•  	mobletHint: 'Crie um cartão de fidelidade para seus clientes'
  

•  }
  

• } */ exports.callback = function(err, response) { console.log(response); var finalResponse = {}; finalResponse.code = 200;

for (var i in response) { // Iterate the parallel responses if (!.isEmpty(response[i])) { if (.isArray(response[i])) { response[i] = this.callback(err, response[i]); } if (err && response[i].code) { finalResponse = response[i]; finalResponse.code = response[i].code; } else { finalResponse = Object.assign(finalResponse, response[i]); } } } return finalResponse; };