Trying to observe 'react-native-mark' type returns always empty array of entries.

[alexferrermano]

Hi,

I am trying to reproduce this code in iOS, in order to get the following measures:

import performance, { PerformanceObserver } from 'react-native-performance';

new PerformanceObserver((list, observer) => {
  if (list.getEntries().find((entry) => entry.name === 'runJsBundleEnd')) {
    performance.measure('nativeLaunch', 'nativeLaunchStart', 'nativeLaunchEnd');
    performance.measure('runJsBundle', 'runJsBundleStart', 'runJsBundleEnd');
  }
}).observe({ type: 'react-native-mark', buffered: true });

I tried several times but I am getting always an empty array of entries. I also tried with the release build.
I am missing some important step from the documentation?

Many thanks!

[Joel Arvidsson]

Hi, did you link the native library too?

[alexferrermano]

Hi Thanks for your reply. It was working finally I was not calling it in the proper place. Thanks!