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Version: v2

Observe​

React to FS events by invoking callbacks.

Parameters
    type string required

    Possible values: start, shutdown

    start - Callback will be executed after the Fullstory client API is fully initialized and ready to capture. Callback will be executed upon invocation if capture has already started.
    shutdown - Callback will be executed after data capture has shutdown manually using FS('shutdown') or in response to an api signal that capture should be disabled.

    callback object required

    A function that will be executed when the event type is triggered.

Asynchronous Method​

The asynchronous version, FS('observeAsync'), can be used to resolve to an object that can be used to "disconnect" the observer.

FS('observe', { type, callback })

Example Invocation​

Get session URL after data capture has started​
FS('observe', {
  type: 'start',
  callback: () => {
    const sessionURL = FS('getSession');
    // Do stuff with session URL...
  }
})
Disconnect callback​
const observer = await FS('observeAsync', {
  type: 'start',
  callback: () => {
    console.log('started');
  }
});

observer.disconnect();