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javascript - 无法读取未定义的属性“totalCalls”

问题描述

我正在研究 AWS Lambda 并在 Node.js 中编写一个方法，当我运行该方法时它给出了一个错误

**Cannot read property 'totalCalls' of undefined**

这是我的代码

  const mysql = require('mysql');
  const moment = require("moment");
var pool  = mysql.createPool({
  host: process.env.RDS_HOSTNAME,
  user: process.env.RDS_USERNAME,
  password: process.env.RDS_PASSWORD,
  port: process.env.RDS_PORT,
  database: process.env.RDS_DATABASE
});

exports.handler = (event, context, callback) => {
  console.log('Events:',event);
  //let QueueID = event['queueId'];
  // allows for using callbacks as finish/error-handlers
  context.callbackWaitsForEmptyEventLoop = false;
pool.getConnection(function(err, connection) {
    if (err) throw err;
     var d = new Date();
        let currentDay = moment(d).format('MM-DD-YYYY');
        console.log('CurrentDay:',currentDay);
        let sub = 6;
        d.setDate(d.getDate() - sub);
        d.setHours(00);
        d.setMinutes(00);
    let sql = `select * from ctrData2.CallDetail WHERE InitiationTimestamp > ? ORDER BY InitiationTimestamp ASC`;
    //let field = [QueueID];
    connection.query(sql,[d], function (err, result, ) {
      if (err) throw err;
    //   connection.release();
       var CallaboveSla =0;
       var weeklySLAObject={};
       result.forEach(d => {
           if(weeklySLAObject[d.RoutingProfileName] !== undefined){
               console.log('Do i comere here',weeklySLAObject)
               weeklySLAObject.RoutingProfileName.totalCalls++;
               if(d.AgentInteractionDuration > 180){
                   if(weeklySLAObject.RoutingProfileName.callsaboveSla){
                       weeklySLAObject.RoutingProfileName.callsaboveSla++;
                   }else{
                       weeklySLAObject.RoutingProfileName.callsaboveSla=0
                   }
               }
           }else{
               weeklySLAObject[d.RoutingProfileName] = {totalCalls: 0,callsaboveSla:0};
           }
            // let date = new Date(d.ConnectedToAgentTimestamp);
            // let DateNow = moment(date).format('MM-DD-YYYY');
            // let datetoday = new Date();
            // datetoday.setDate(datetoday.getDate() - 7); //set it to 6 days back
            // weeklySLAObject.push(d);
            
            });
       let sla = (CallaboveSla/result.length)*100;
       callback(null,weeklySLAObject);
    });
  });
};

我不知道这个错误是什么

打印在控制台上并能够检索总数。

值显示在控制台中，但作为响应，它给了我一个错误。

标签： javascriptaws-lambda

解决方案

您正在检查未定义：

if(weeklySLAObject[d.RoutingProfileName] !== undefined){

但是你正在访问另一个属性

weeklySLAObject.RoutingProfileName

可能应该更改为

weeklySLAObject[d.RoutingProfileName].totalCalls++

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