从webhook解析json

Question

我正在尝试设置与Quickbooks的webhook和测试我使用JSON的示例，他们将发布到webhook。

的JSON的格式如下：

{ 
    "eventNotifications":[ 
    { 
     "realmId":"1185883450", 
     "dataChangeEvent": 
     { 
      "entities":[ 
      { 
       "name":"Customer", 
       "id":"1", 
       "operation":"Create", 
       "lastUpdated":"2015-10-05T14:42:19-0700" 
      }, 
      { 
       "name":"Vendor", 
       "id":"1", 
       "operation":"Create", 
       "lastUpdated":"2015-10-05T14:42:19-0700" 
      }] 
     } 
    }] 
} 

使用JavaScript，我试图解析它一对夫妇的方式，但我一直陷在实体部分。

尝试1： 有了这个尝试，我得到一个错误，说明长度未定义，这导致我尝试下一次尝试。

for (var i = 0; i < req.body.eventNotifications.length; i++) { 

    // Works fine 
    realmId.push(req.body.eventNotifications[i].realmId); 

    for (var j = 0; j < req.body.eventNotifications[i].dataChangeEvent.entities.length; j++) { 
     // length is undefined 
    } 
} 

尝试2： 我没有得到错误如上，但任何事情我尝试访问下面的实体是不确定的。

for (var i = 0; i < req.body.eventNotifications.length; i++) { 

    // Works fine 
    realmId.push(req.body.eventNotifications[i].realmId); 

    for (var j = 0; j < req.body.eventNotifications[i].dataChangeEvent.length; j++) { 
     // Anything I try to access is undefined 
     var test = req.body.eventNotifications[i].dataChangeEvent[j].entities.name; 
    } 
} 

Answer 1

for (var i = 0; i < req.body.eventNotifications.length; i++) { 

    // Works fine 
    realmId.push(req.body.eventNotifications[i].realmId); 

    var eventNotification = req.body.eventNotifications[i]; 

    for (var j = 0; j < eventNotification.dataChangeEvent.entities.length; j++) { 
     var entityName = eventNotification.dataChangeEvent.entities[j].name; 
    } 
}