Node.js 无法订阅动态主题。使用aws物联网设备sdk

当我订阅连接阴影的动态主题时。我无法连接设备。没有订阅，它已连接，但无法接收消息负载。

代码

政策

 {
  "Effect": "Allow",
  "Action": [
    "iot:Connect"
  ],
  "Resource": [
    "arn:aws:iot:ap-south-1:453533943651:client/${iot:Connection.Thing.ThingName}"
  ]
},
{
  "Effect": "Allow",
  "Action": [
    "iot:Publish"
  ],
  "Resource": [
    "arn:aws:iot:us-south-1:453533943651:topic/${iot:Connection.Thing.ThingName}/*"
  ]
},
{
  "Effect": "Allow",
  "Action": [
    "iot:Subscribe"
  ],
  "Resource": [
    "arn:aws:iot:us-south-1:453533943651:topicfilter/${iot:Connection.Thing.ThingName}/*"
  ]
},
{
  "Effect": "Allow",
  "Action": [
    "iot:Receive"
  ],
  "Resource": [
    "arn:aws:iot:ap-south-1:453533943651:topic/${iot:Connection.Thing.ThingName}/*"
  ]
}

日志/输出

错误：过早关闭 在onclosenexttick（/Users/murtuzanalawala/Node/RiooNode/Node_modules/end of stream/index.js:54:86） 在处理和拒绝时（内部/process/task_queues.js:75:11） 连接丢失-将在128秒内尝试重新连接。。。 关闭 重新连接/重新注册 连接 离线

提前谢谢你的好建议

---

是的，您无法订阅动态主题您必须将策略“arn:aws:iot:ap-south-1:453533943651:topic/${iot:Connection.Thing.ThingName}/*”更改为*。以允许所有设备。然后您可以订阅。topic/${iot:Connection.Thing.ThingName}。这表示ThingName应位于主题末尾。更改以允许您能够订阅的所有内容

 {
  "Effect": "Allow",
  "Action": [
    "iot:Connect"
  ],
  "Resource": [
    "arn:aws:iot:ap-south-1:453533943651:client/${iot:Connection.Thing.ThingName}"
  ]
},
{
  "Effect": "Allow",
  "Action": [
    "iot:Publish"
  ],
  "Resource": [
    "arn:aws:iot:us-south-1:453533943651:topic/${iot:Connection.Thing.ThingName}/*"
  ]
},
{
  "Effect": "Allow",
  "Action": [
    "iot:Subscribe"
  ],
  "Resource": [
    "arn:aws:iot:us-south-1:453533943651:topicfilter/${iot:Connection.Thing.ThingName}/*"
  ]
},
{
  "Effect": "Allow",
  "Action": [
    "iot:Receive"
  ],
  "Resource": [
    "arn:aws:iot:ap-south-1:453533943651:topic/${iot:Connection.Thing.ThingName}/*"
  ]
}