You can register callback functions that are called when events such as initialization completion, login, or logout occur. 
furo.on(eventType, callback);
The available event types are as follows:
  • init: Triggered when initialization is complete.
  • login: Triggered once when login is complete.
  • logout: Triggered once when logout is complete.
  • user:set: Triggered every time a user is assigned to furo.user after token issuance. The difference from the login event is that login occurs only when the initial login is complete, while user:set occurs when a user is retrieved with an existing token. This typically happens during a page refresh.

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API

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furo.on(eventType, callback)

Registers a callback function to receive events.
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eventType
string
required
The type of event you want to receive. init, login, logout, user:set
​
callback
function
required
The callback function that is called when the event occurs.
furo.on('init', () => {
});