Delphi DLL

Get the JWS Payload as a String

See more JSON Web Signatures (JWS) Examples

Demonstrates Jws.GetPayload, which returns the payload of a loaded JWS as text, decoded using the given charset.

Background. In practice, validate the signature before trusting the payload. Getting the payload retrieves the signed content.

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Delphi DLL

var
success: Boolean;
jws: HCkJws;
jwsCompact: PWideChar;
payload: PWideChar;

begin
success := False;

jws := CkJws_Create();

//  Load the JWS compact serialization.
jwsCompact := 'eyJhbGciOiJIUzI1NiJ9.VGhpcyBpcyB0aGUgY29udGVudCB0byBzaWduLg.<signature>';
success := CkJws_LoadJws(jws,jwsCompact);
if (success = False) then
  begin
    Memo1.Lines.Add(CkJws__lastErrorText(jws));
    Exit;
  end;

//  Return the JWS payload as text, decoded using the given charset.
payload := CkJws__getPayload(jws,'utf-8');
if (CkJws_getLastMethodSuccess(jws) = False) then
  begin
    Memo1.Lines.Add(CkJws__lastErrorText(jws));
    Exit;
  end;
Memo1.Lines.Add(payload);

CkJws_Dispose(jws);