(Excel) Get a Google Drive Access Token using a .p12 Private Key

Demonstrates how to get a Google Drive API access token using a .p12 private key.

Download Excel Class Modules Chilkat Excel Class Modules

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

Dim gAuth As Chilkat.AuthGoogle
Set gAuth = Chilkat.NewAuthGoogle

Dim pfx As Chilkat.Pfx
Set pfx = Chilkat.NewPfx

success = pfx.LoadPfxFile("qa_data/googleApi/ChilkatTest-5ba79ce39459.p12","notasecret")
If (success <> True) Then
    Debug.Print pfx.LastErrorText
    Exit Sub
End If

success = gAuth.SetP12(pfx)
If (success <> True) Then
    Debug.Print gAuth.LastErrorText
    Exit Sub
End If

' Choose a scope.
gAuth.Scope = "https://www.googleapis.com/auth/drive"

' Request an access token that is valid for this many seconds.
gAuth.ExpireNumSeconds = 3600

' If the application is requesting delegated access:
' The email address of the user for which the application is requesting delegated access,
' then set the email address here. (Otherwise leave it empty.)
gAuth.SubEmailAddress = "support@chilkatcloud.com"

gAuth.EmailAddress = "597922945226-00rb0ppfg0snd9jo6bhvd4v17jtj2d3a@developer.gserviceaccount.com"

' Connect to www.googleapis.com using TLS (TLS 1.2 is the default.)
' The Chilkat socket object is used so that the connection can be established
' through proxies or an SSH tunnel if desired.
Dim tlsSock As Chilkat.Socket
Set tlsSock = Chilkat.NewSocket
success = tlsSock.Connect("www.googleapis.com",443,True,5000)
If (success <> True) Then
    Debug.Print tlsSock.LastErrorText
    Exit Sub
End If

' Send the request to obtain the access token.
success = gAuth.ObtainAccessToken(tlsSock)
If (success <> True) Then
    Debug.Print gAuth.LastErrorText
    Exit Sub
End If

' Examine the access token:
Debug.Print "Access Token: "; gAuth.AccessToken