function changeURLArg(url,arg,arg_val) {
  var pattern=arg+' = ([^&]*)';
  var replaceText = arg+'='+arg_val;
  if (url.match(pattern)) {
    var tmp = '/('+ arg+'=)([^&]*)/gi';
    tmp = url.replace(eval(tmp),replaceText);
    return tmp;
  }
  return url;
}
const aegis = new Aegis({
  id: 'pGUVFTCZyewxxxxx',
  onBeforeRequest(log) {
    if (log.type === 'performance') {
      // Page speed test. Here, you can modify the content of `log`; for example, you can modify the `platform` for page speed test
      log.url = changeURLArg(log.url, 'platform', type)
    }
    return log
  }
});

// SEND_TYPE {
//   LOG = 'log',  // Log
//   SPEED = 'speed', // API and static resource speed test
//   PERFORMANCE = 'performance', // Page speed test
//   OFFLINE = 'offline', // Offline log upload
//   WHITE_LIST = 'whiteList', // Allowlist
//   VITALS = 'vitals', // Web Vitals
//   PV = 'pv', // Custom PV
//   EVENT = 'event', // Custom event
//   CUSTOM = 'custom', // Custom speed test
//   SDK_ERROR = 'sdkError', // SDK error
// }

const aegis = new Aegis({
  id: 'pGUVFTCZyewxxxxx',
  beforeReport(log) {
    // Listen on the reported error below
    console.log(log); // {level: "4", msg: "An error occurred."}
    return log;
  }
});

throw new Error('An error occurred.');

const aegis = new Aegis({
  id: 'pGUVFTCZyewxxxxx',
  beforeReport(log) {
    if (log.level === '4' && log.msg && log.msg.indexOf('An error that doesn't need to be reported') !== -1) {
      return false
    }
    return log;
  }
});
throw new Error('An error that doesn't need to be reported'); // This error will not be reported

const aegis = new Aegis({
  id: 'pGUVFTCZyewxxxxx',
  reportApiSpeed: true,
  reportAssetSpeed: true,
  beforeReportSpeed(msg) {
    console.log(msg); // {url: "https://localhost:3001/example.e31bb0bc.js", method: "get", duration: 7.4, status: 200, type: "static"}
    return msg
  }
});

const aegis = new Aegis({
  id: 'pGUVFTCZyewxxxxx',
  reportApiSpeed: true,
  reportAssetSpeed: true,
  beforeReportSpeed(msg) {
    msg.type = 'static';
    return msg;
  }
});

const aegis = new Aegis({
  id: 'pGUVFTCZyewxxxxx',
  reportApiSpeed: true,
  reportAssetSpeed: true,
  beforeReportSpeed(msg) {
    if (msg.url === 'https://example.com/api') {
      msg.type = 'fetch';
    }
  }
});

const aegis = new Aegis({
  id: 'pGUVFTCZyewxxxxx',
  reportApiSpeed: true,
  reportAssetSpeed: true,
  beforeReportSpeed(msg) {
    // Speed test logs for resources whose address contains `https://example.com/api` will not be reported
    if (msg.url.indexOf('https://example.com/api') !== -1) {
      // If `false` is returned, the reporting of the speed test log will be blocked
      return false
    }
  }
});

const aegis = new Aegis({
  id: 'pGUVFTCZyewxxxxx',
  beforeRequest: function(msg) {
    if (msg.logs && msg.logs.level === '4' && msg.logs.msg && msg.logs.msg.indexOf('An error that doesn't need to be reported') !== -1) {
      return false
    }
    return msg;
  }
});

const aegis = new Aegis({
  id: "pGUVFTCZyewxxxxx",
  afterRequest: function(msg) {
    // {isErr: false, result: Array(1), logType: "log", logs: Array(4)}
    console.log(msg);
  }
});