Session management

The SDK comes with a built-in singleton Session, so you may access the authentication state at any time, in any context, getting its current instance.

It is also an observable, so it can be watched for changes:

import { Observer } from '@bitcapital/core-sdk';

// Gets the current Session instance
const session = bitcapital.session();

// Shows the current user instance, if any
console.log(session.current);

// Prepare a new session observer (typescript notation)
const observer: Observer = {
  update(event: string, current: User) {
    if(event === Session.EVENT_SESSION_CHANGED) {
      console.log('User instance has changed in Session', { user: current });
    }
  }
};

// Start listening to Session changes, such as credentials
// expiration or a refreshed access token.
session.subscribe(observer);

// ...

// Eventually, you can also stop listening to its changes
session.unsubscribe(observer);

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