string jsonPath2 =
    System.Web.Hosting.HostingEnvironment.ApplicationPhysicalPath +
    "client_secret_p1.json";

        UserCredential credential;


        string[] Scopes = { GmailService.Scope.GmailReadonly };
        string credPath = System.Environment.GetFolderPath(
           System.Environment.SpecialFolder.Personal);



        using (var stream = new FileStream(jsonPath2, FileMode.Open,
      FileAccess.Read))
        {
            credential = await GoogleWebAuthorizationBroker.AuthorizeAsync(
                GoogleClientSecrets.Load(stream).Secrets,
                // This OAuth 2.0 access scope allows for read-only access
       to the authenticated
                // user's account, but not other types of account access.
                new[] { GmailService.Scope.GmailReadonly, GmailService.Scope.MailGoogleCom, GmailService.Scope.GmailModify, GmailService.Scope.GmailMetadata },
                "stelazrpp@gmail.com",
                CancellationToken.None,
                new FileDataStore(this.GetType().ToString())


            );
        }
        var gmailService = new GmailService(new BaseClientService.Initializer()
        {
            HttpClientInitializer = credential,
            ApplicationName = this.GetType().ToString()
        });

        var emailListRequest = gmailService.Users.Messages.List("xxxx@gmail.com");
        emailListRequest.LabelIds = "INBOX";
        emailListRequest.MaxResults = 1;
        emailListRequest.Q = "is:unread";
        emailListRequest.IncludeSpamTrash = false;

        //emailListRequest.Q = "is:unread"; // This was added because I only wanted unread emails...

        // Get our emails
        var emailListResponse =  emailListRequest.Execute();

        //get our emails
        log.Info(" emailListResponse is " + emailListResponse);

        if (emailListResponse != null && emailListResponse.Messages != null)
        {
            //loop through each email and get what fields you want...
            foreach (var email in emailListResponse.Messages)
            {

                var emailInfoRequest = gmailService.Users.Messages.Get("xxx@gmail.com", email.Id);

                var emailInfoResponse = emailInfoRequest.Execute();



                if (emailInfoResponse != null)
                {
                    String from = "";
                    String date = "";
                    String subject = "";
                    String body = "";
                    //loop through the headers to get from,date,subject, body
                    foreach (var mParts in emailInfoResponse.Payload.Headers)
                    {


                        if (mParts.Name == "Date")
                        {
                            date = mParts.Value;
                        }
                        else if (mParts.Name == "From")
                        {
                            from = mParts.Value;
                        }
                        else if (mParts.Name == "Subject")
                        {
                            subject = mParts.Value;
                        }

                        if (date != "" && from != "")
                        {

                            foreach (MessagePart p in emailInfoResponse.Payload.Parts)
                            {




                                    if (emailInfoResponse.Payload.Parts == null && emailInfoResponse.Payload.Body != null)
                                        body = DecodeBase64String(emailInfoResponse.Payload.Parts[0].Body.Data);
                                    else
                                        body = GetNestedBodyParts(emailInfoResponse.Payload.Parts, "");
                                }


                                //     else    if (p.MimeType == "text/html")
                                //{
                                //    byte[] data = FromBase64ForUrlString(p.Body.Data);
                                //    string decodedString = Encoding.UTF8.GetString(data);

                                //}

                            }


                    }
                    ///////////
                    var source = body;

                    var parser = new HtmlParser();
                    var dom = parser.Parse(source);
                    var querySelector = dom.QuerySelector("a");
                    //var textLink = querySelector.GetAttribute("href");


                    await context.PostAsync("Info: Date );

{"installed":{"client_id":"com","project_id":"","auth_uri":"https://accounts.google.com/o/oauth2/auth","token_uri":"https://www.googleapis.com/oauth2/v3/token","auth_provider_x509_cert_url":"https://www.googleapis.com/oauth2/v1/certs","client_secret":"","redirect_uris":["urn:ietf:wg:oauth:2.0:oob","http://localhost"]}}