How does JWT authentication work?

In short, JWTs are used as a secure way to authenticate users and share information. Typically, a private key, or secret, is used by the issuer to sign the JWT. The receiver of the JWT will verify the signature to ensure that the token hasn’t been altered after it was signed by the issuer.

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What is JWT verify?

Step 11: JWT verify method is used for verify the token the take two arguments one is token string value, and second one is secret key for matching the token is valid or not. The validation method returns a decode object that we stored the token in.16 Şub 2022

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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.

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