从async.each发送到两个不同的函数

我正在尝试这样做，我将信息接收到一个对象数组，然后我使用async.each函数，调用两个将数据发送到另一个api的函数，我使用ExpressJs。这是代码：

异步功能：

 async.each(readingsArray, function(reading, callback) {
    var firstTwo;
    firstTwo = reading.value.substring(0,2);
    if(firstTwo === '32') {
      updateLocation(reading, function() {
        callback();
      });
    } else {
      updateItem(reading, function() {
        callback();
      });
    }
  }, function(err) {
    if(err) {
      res.send(Boom.badRequest('Can't sent data'));
    } else {
      res.send({
        statusCode: 200,
        message: 'Data sent'
      });
    }
  });

另外两个功能：

    var updateLocation = function updateLocation (reading, callback) {
    request.patch(config.url + '/handhelds/' + reading.id)
    .send({
      //some information
    })
    .end(function(err, res) {
      if (err) {
        callback(err);
      } else {
        callback();
      }
    });
  };

  var updateItem = function updateItem(lectura, callback) {
  request.post(config.url + '/items/' + reading.id +    '/event')
  .send({
   //some information
  })
  .end(function(err, res) {
    if (err) {
      callback(err);
    } else {
        callback();
      }
    });
};

我仍在努力理解nodejs的异步部分。我想做的是更新设备位置，然后用另一个函数updateItem发送项目，直到调用另一个updateLocation，然后继续发送项目。这就是为什么我在Async中放置了一个从位置或项进行标识的if。有可能吗？

第1版：

以下是我使用的所有代码：

'use strict';
var express = require('express');
var bodyParser = require('body-parser');
var request = require('superagent');
var async = require('async');
var moment = require('moment-timezone');
var Boom = require('boom');
var config = require('./config.js');
var app = express();
var getReadings = function getReadings(csvValue, mac) {
//Here I return the array of objects
  var readings, values;
  var arrayFromCSV = function arrayFromCSV(csv) {
    var array = values.replace(/'n/g, ',').replace(/''/g, '').replace(/'"/g, '').split(',');
    array.pop(); 
    return array;
  };
  var epochToISO = function epochToISO(epochValue) {
    var epochInMilliseconds = parseInt(epochValue, 10) / 1000;
    var date = new Date(epochInMilliseconds);
    return date.toISOString();
  };
  var convertToArgentinaTimezone = function convertToArgTimezone(utcTime) {
    return moment.tz(utcTime, 'America/Argentina/Buenos_Aires').format();
  };
  var separateValues = function separateValues(readings) {
    var items = [];
    for (var i = 0; i < lecturas.length; i += 4) {
      var newObject = {
        epc: lecturas[i + 1],
        mac: mac,
        timeStamp: convertToArgentinaTimezone(epochToISO(lecturas[i + 2]))
      };
      items.push(newObject);
    }
    return items;
  };
  lecturas = arrayFromCSV(valorCSV);
  epcs = separarPorEPC(lecturas);
  return epcs;
};
 var updateLocation = function updateLocation (reading, callback) {
    request.patch(config.url + '/handhelds/' + reading.id)
    .send({
      //some information
    })
    .end(function(err, res) {
      if (err) {
        callback(err);
      } else {
        callback();
      }
    });
  };
var updateItem = function updateItem(lectura, callback) {
  request.post(config.url + '/items/' + reading.id +    '/event')
  .send({
   //some information
  })
  .end(function(err, res) {
    if (err) {
      callback(err);
    } else {
        callback();
      }
    });
};
app.use(bodyParser.urlencoded({
  extended: true
}));
app.post('/', function(req, res) {
  var readingsInValues = req.body.field_values;
  var mac = req.body.reader_name.replace(/''/g, '').replace(/'"/g, '');
  var readingArrays = getReadings(readingsInValues, mac);
   async.each(readingsArrays, function(reading, callback) {
    var firstTwo;
    firstTwo = reading.value.substring(0,2);
    if(firstTwo === '32') {
      updateLocation(reading, function() {
        callback();
      });
    } else {
      updateItem(reading, function() {
        callback();
      });
    }
  }, function(err) {
    if(err) {
      res.send(Boom.badRequest('Can't sent data'));
    } else {
      res.send({
        statusCode: 200,
        message: 'Data sent'
      });
    }
  });
});
console.log('Traductor encendido');
app.listen(config.port);

阵列如下：

      [ { id: '32144B5A1231200000001',
        mac: '00:16:25:10:57:E9',
        timeStamp: '2015-11-20T10:28:26-03:00' },
      { id: '30142F13F44123F0000057',
        mac: '00:16:25:10:57:E9',
        timeStamp: '2015-11-20T10:28:28-03:00' },
      { id: '32144B1231230000001AB',
        mac: '00:16:25:10:57:E9',
        timeStamp: '2015-11-20T10:29:09-03:00' },
      { id: '30142F13F0234234000055',
        mac: '00:16:25:10:57:E9',
        timeStamp: '2015-11-20T10:30:19-03:00' } ]

希望这能澄清我的问题。