What is ->setId() for (jti claim)?

[bologer]

Hi,

$token = Yii::$app->jwt->getBuilder()
            ->setIssuer('http://example.com')
            ->setAudience('http://example.org')
            ->setId('4f1g23a12aa', true) // <-- what is this for?
           ...

I see this is used pretty much on every example. It's a bit confusing and I would like to know whether it is something I should considered as well.

[sizeg]

Hi, examples is just examples, modify it as you need.

https://tools.ietf.org/html/rfc7519#section-4.1.7

[bologer]

I see, thanks.