Configure Google Service Account Authentication for REST

See more REST Examples

Demonstrates Rest.SetAuthGoogle, which associates an AuthGoogle provider so Chilkat supplies a Google OAuth 2.0 bearer token on each request. The provider is configured with a service account JSON key and the required OAuth scope.

The file path is relative to the application's current working directory. An absolute path may also be used. Supply the path appropriate to your own environment.

Dim success As Boolean = False

Dim rest As New Chilkat.Rest
Dim bTls As Boolean = True
Dim bAutoReconnect As Boolean = True
success = rest.Connect("example.com",443,bTls,bAutoReconnect)
If (success = False) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If


'  Configure Google service-account authentication.  Load the service account JSON key and set the
'  required OAuth scope(s).
Dim gAuth As New Chilkat.AuthGoogle

Dim sbJsonKey As New Chilkat.StringBuilder
Dim bLoaded As Boolean = sbJsonKey.LoadFile("qa_data/service_account.json")
If (bLoaded <> True) Then
    Debug.WriteLine("Failed to load the service account JSON key.")
    Exit Sub
End If

Dim jsonKey As String = sbJsonKey.GetAsString()
If (sbJsonKey.LastMethodSuccess = False) Then
    Debug.WriteLine(sbJsonKey.LastErrorText)
    Exit Sub
End If

gAuth.JsonKey = jsonKey

'  A space-delimited list of the requested permissions.
gAuth.Scope = "https://www.googleapis.com/auth/cloud-platform"

'  Associate the provider so Chilkat supplies a Google bearer token on each request.
success = rest.SetAuthGoogle(gAuth)
If (success = False) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If


Dim responseText As String = rest.FullRequestNoBody("GET","/storage/v1/b?project=my-project")
If (rest.LastMethodSuccess = False) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If

Debug.WriteLine(responseText)