Create a JWS into a StringBuilder

See more JSON Web Signatures (JWS) Examples

Demonstrates Jws.CreateJwsSb, which creates a JWS and writes it into a StringBuilder.

Dim success As Long
success = 0

Dim jws As New ChilkatJws

'  Set the protected header for signer 0, specifying the signature algorithm (alg).
Dim header As New ChilkatJsonObject
success = header.UpdateString("alg","HS256")
success = jws.SetProtectedHeader(0,header)
If (success = 0) Then
    Debug.Print jws.LastErrorText
    Exit Sub
End If

'  Set the payload to be signed.
Dim bIncludeBom As Long
bIncludeBom = 0
success = jws.SetPayload("This is the content to sign.","utf-8",bIncludeBom)
If (success = 0) Then
    Debug.Print jws.LastErrorText
    Exit Sub
End If

'  Provide the HMAC key (base64) for signer 0.  In production, obtain the key from a secure source
'  rather than hard-coding it.
Dim base64Key As String
base64Key = "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXowMTIzNDU="
success = jws.SetMacKey(0,base64Key,"base64")
If (success = 0) Then
    Debug.Print jws.LastErrorText
    Exit Sub
End If

'  Create the JWS and write it into a StringBuilder.
Dim sbJws As New ChilkatStringBuilder
success = jws.CreateJwsSb(sbJws)
If (success = 0) Then
    Debug.Print jws.LastErrorText
    Exit Sub
End If

Debug.Print sbJws.GetAsString()