util_decode_protected_header.decodeProtectedHeader.md

Function: decodeProtectedHeader

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▸ decodeProtectedHeader(token): ProtectedHeaderParameters

Decodes the Protected Header of a JWE/JWS/JWT token utilizing any JOSE serialization.

This function is exported (as a named export) from the main 'jose' module entry point as well as from its subpath export 'jose/decode/protected_header'.

Parameters

Name	Type	Description
token	string | object	JWE/JWS/JWT token in any JOSE serialization.

Returns

ProtectedHeaderParameters

Example

const protectedHeader = jose.decodeProtectedHeader(token)
console.log(protectedHeader)