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(Xojo Plugin) Get a Google Drive Access Token using a JSON Private Key

Demonstrates how to get a Google Drive API access token using a JSON service account private key.

Chilkat Xojo Plugin Download

Xojo Plugin for Windows, Linux, Mac OS X, and ARM, ARM64

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

// First load the JSON key into a string.
Dim fac As New Chilkat.FileAccess
Dim jsonKey As String
jsonKey = fac.ReadEntireTextFile("qa_data/googleApi/chilkatcloud-b8826e030499.json","utf-8")
If (fac.LastMethodSuccess <> True) Then
    System.DebugLog(fac.LastErrorText)
    Return
End If

Dim gAuth As New Chilkat.AuthGoogle
gAuth.JsonKey = jsonKey

// 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 = ""

// 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 New Chilkat.Socket
Dim success As Boolean
success = tlsSock.Connect("www.googleapis.com",443,True,5000)
If (success <> True) Then
    System.DebugLog(tlsSock.LastErrorText)
    Return
End If

// Send the request to obtain the access token.
success = gAuth.ObtainAccessToken(tlsSock)
If (success <> True) Then
    System.DebugLog(gAuth.LastErrorText)
    Return
End If

// Examine the access token:
System.DebugLog("Access Token: " + gAuth.AccessToken)

 

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