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JWT

A signed token carrying who the user is and when the token expires, which a server can check without a database lookup.

A JSON Web Token is a base64url-encoded header, claims set and signature; a server verifies the signature and the expiry claim before trusting the claims.

Examples

  • The greenhouse back end's JWT has a header {"alg": "HS256", "typ": "JWT"} and claims such as sub (the user) and exp (expiry), checked with the server's secret instead of a database lookup.

See also

bearer token authentication JSON
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