(VB.NET) 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.

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' 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 New Chilkat.Rest
Dim socket As New Chilkat.Socket

' Set the certificate to be used for mutual TLS authentication
Dim cert As New Chilkat.Cert

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

Dim success As Boolean = cert.LoadFromSmartcard("")
If (success <> True) Then
    Debug.WriteLine(cert.LastErrorText)
    Exit Sub
End If


success = socket.SetSslClientCert(cert)
If (success <> True) Then
    Debug.WriteLine(socket.LastErrorText)
    Exit Sub
End If


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


Dim bAutoReconnect As Boolean = True

' Use the connection:
success = rest.UseConnection(socket,bAutoReconnect)
If (success <> True) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
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
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If