检测慢速网络角度9

Question

我需要在Angular 9应用中拦截慢速网络事件。

有什么办法吗？

我已经检测到离线和在线事件，但是我需要缓慢的网络事件检测

这是我用于在线和离线事件检测的代码

this.onlineEvent = fromEvent(window, 'online');
this.offlineEvent = fromEvent(window, 'offline');
this.slowLineEvent = fromEvent(window, 'slowline');
this.subscriptions.push(this.onlineEvent.subscribe(e => {
  this.connectionStatusMessage = 'Back to online';
  this.connectionStatus = 'online';
  this.error = { type: 'ok', color: 'rgb(80, 218, 0)', message: 'CONNECTION.OK' };
}));

this.subscriptions.push(this.offlineEvent.subscribe(e => {
  this.connectionStatusMessage = 'Connection lost! You are not connected to internet';
  this.connectionStatus = 'offline';
  this.error = { type: 'offline', color: 'red', message: 'CONNECTION.OFFLINE' };
}));