JavaScript

Get a JWS Unprotected Header

See more JSON Web Signatures (JWS) Examples

Demonstrates Jws.GetUnprotectedH, which copies the optional unprotected header of a signature into a JsonObject.

Background. The unprotected header is present only in JSON serialization forms that carry one. It is not covered by the signature.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

JavaScript

var success = false;

var jws = new CkJws();

//  Load the JWS compact serialization.
var jwsCompact = "eyJhbGciOiJIUzI1NiJ9.VGhpcyBpcyB0aGUgY29udGVudCB0byBzaWduLg.<signature>";
success = jws.LoadJws(jwsCompact);
if (success == false) {
    console.log(jws.LastErrorText);
    return;
}

//  Copy the optional unprotected header of signature 0 into a JsonObject.  This applies to JWS in a
//  JSON serialization form that carries an unprotected header.
var json = new CkJsonObject();
success = jws.GetUnprotectedH(0,json);
if (success == false) {
    console.log(jws.LastErrorText);
    return;
}

json.EmitCompact = false;
console.log(json.Emit());