B4X

Client Certificate in REST (USB Token or Smartcard)

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Demonstrates how to use a client certificate with a REST connection where the certificate and private key are located on a USB token or smart card. B4X

Dim success As Boolean = False

'  This example requires the Chilkat API to have been previously unlocked.
'  See Global Unlock Sample for sample code.

'  This example shows how to use the Chilkat socket object's connection.
Dim rest As ChilkatRest
rest.Initialize("rest")
Dim socket As ChilkatSocket
socket.Initialize("socket")

'  Set the certificate to be used for mutual TLS authentication
Dim cert As ChilkatCert
cert.Initialize("cert")

'  If the smartcard or token requires a PIN...
cert.SmartCardPin = "000000"

success = cert.LoadFromSmartcard("")
If success <> True Then
    Log(cert.LastErrorText)
    Return
End If


success = socket.SetSslClientCert(cert)
If success <> True Then
    Log(socket.LastErrorText)
    Return
End If


'  Establish the connection using the socket object (with client certificate authentication).
Dim bTls As Boolean = True
Dim port As Int = 443
Dim maxWaitMs As Int = 5000
success = socket.Connect("www.example.com", port, bTls, maxWaitMs)
If success <> True Then
    Log("Connect Failure Error Code: " & socket.ConnectFailReason)
    Log(socket.LastErrorText)
    Return
End If


Dim bAutoReconnect As Boolean = True

'  Use the connection:
success = rest.UseConnection(socket, bAutoReconnect)
If success <> True Then
    Log(rest.LastErrorText)
    Return
End If


'  At this point we are connected and can make REST calls...
'  For example..
Dim responseJson As String = rest.FullRequestNoBody("GET", "/someQuery")
If rest.LastMethodSuccess <> True Then
    Log(rest.LastErrorText)
    Return
End If