What return JWT verify?

jwt.verify(token, secretOrPublicKey, [options, callback]) (Synchronous) If a callback is not supplied, function acts synchronously. Returns the payload decoded if the signature is valid and optional expiration, audience, or issuer are valid . If not, it will throw the error.

Read more

Where are JWT used?

The tokens are designed to be compact, URL-safe, and usable especially in a web-browser single-sign-on (SSO) context. JWT claims can typically be used to pass identity of authenticated users between an identity provider and a service provider, or any other type of claims as required by business processes .

Read more

What is IAT and NBF?

iat (Issued At) Claim — Identifies the time at which the JWT token was issued. nbf (Not Before) Claim — Identifies the time before which the JWT token MUST NOT be accepted for processing. exp (Expiration Time) — Identifies the expiration time on or after which the JWT MUST NOT be accepted for processing.

Read more