Visual Basic.NET - API Drive con Visual Basic .NET

Imports Google.Apis.Auth.OAuth2

Imports Google.Apis.Drive.v2

Imports Google.Apis.Drive.v2.Data

Imports Google.Apis.Services

Imports Google.Apis.Util.Store

Imports System

Imports System.Collections.Generic

Imports System.IO

Imports System.Linq

Imports System.Text

Imports System.Threading

Imports System.Threading.Tasks

Imports Google

Imports Google.Apis.Auth

Imports Google.Apis.Download

Public Class Form1

Private Service As DriveService = New DriveService

Private Sub CreateService()

    Dim ClientId = "My id client"

    Dim ClientSecret = "My secret client"

    Dim MyUserCredential As UserCredential = GoogleWebAuthorizationBroker.AuthorizeAsync(New ClientSecrets() With {.ClientId = ClientId, .ClientSecret = ClientSecret}, {DriveService.Scope.Drive}, "user", CancellationToken.None).Result

    Service = New DriveService(New BaseClientService.Initializer() With {.HttpClientInitializer = MyUserCredential, .ApplicationName = "PruebaAPIDrivee"})

End Sub

Private Sub UploadFile(FilePath As String)

    Me.Cursor = Cursors.WaitCursor

    If Service.ApplicationName <> "PruebaAPIDrivee" Then CreateService()

    Dim TheFile As New Apis.Drive.v2.Data.File()

    TheFile.Title = "My document"

    TheFile.Description = "A test document"

    TheFile.MimeType = "text/plain"

    Dim ByteArray As Byte() = System.IO.File.ReadAllBytes(FilePath)

    Dim Stream As New System.IO.MemoryStream(ByteArray)

    Dim UploadRequest As FilesResource.InsertMediaUpload = Service.Files.Insert(TheFile, Stream, TheFile.MimeType)

    Me.Cursor = Cursors.Default

    MsgBox("Upload Finished")

End Sub

Private Sub DownloadFile(url As String, DownloadDir As String)

    Me.Cursor = Cursors.WaitCursor

    If Service.ApplicationName <> "Google Drive VB Dot Net" Then CreateService()

    Dim Downloader = New MediaDownloader(Service)

    Downloader.ChunkSize = 256 * 1024 '256 KB

    ' figure out the right file type base on UploadFileName extension

    Dim Filename = DownloadDir & "NewDoc.txt"

    Using FileStream = New System.IO.FileStream(Filename, System.IO.FileMode.Create, System.IO.FileAccess.Write)

        Dim Progress = Downloader.DownloadAsync(url, FileStream)

        Threading.Thread.Sleep(1000)

        Do While Progress.Status = TaskStatus.Running

        Loop

        If Progress.Status = TaskStatus.RanToCompletion Then

            MsgBox("Downloaded!")

        Else

            MsgBox("Not Downloaded :(")

        End If

    End Using

    Me.Cursor = Cursors.Default

End Sub

Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click

    Dim openFileDialog1 As New OpenFileDialog()

    openFileDialog1.InitialDirectory = "c:\"

    openFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*"

    openFileDialog1.FilterIndex = 2

    openFileDialog1.RestoreDirectory = True

    If openFileDialog1.ShowDialog() = System.Windows.Forms.DialogResult.OK Then

        TextBox1.Text = openFileDialog1.FileName()

    End If

End Sub

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click

    UploadFile(TextBox1.Text)

End Sub

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using Google.Apis.Auth.OAuth2;

using Google.Apis.Drive.v3;

using Google.Apis.Drive.v3.Data;

using Google.Apis.Services;

using Google.Apis.Util.Store;

using System.IO;

using System.Threading;

using Google.Apis.Download;

using Google.Apis.Requests;

using Google;

using Google.Apis.Drive;

using Google.Apis;

namespace APIDrive

{

    class Program

    {

        static string[] Scopes = { DriveService.Scope.DriveReadonly };

        static string ApplicationName = "APIDrive";

        static void Main(string[] args)

        {

            UserCredential credential;

            using (var stream =

                new FileStream("client_secret.json", FileMode.Open, FileAccess.Read))

            {

                string credPath = System.Environment.GetFolderPath(

                    System.Environment.SpecialFolder.Personal);

                credPath = Path.Combine(credPath, ".credentials/drive-dotnet-quickstart.json");

                credential = GoogleWebAuthorizationBroker.AuthorizeAsync(

                     GoogleClientSecrets.Load(stream).Secrets,

                     Scopes,

                     "user",

                     CancellationToken.None,

                     new FileDataStore(credPath, true)).Result;

                Console.WriteLine("El archivo credencial se guarda en: " + credPath);

            }

            // Crea el servicio de API Drive

            var service = new DriveService(new BaseClientService.Initializer()

            {

                HttpClientInitializer = credential,

                ApplicationName = ApplicationName,

            });

            //LISTAR ARCHIVOS DEL DRIVE

            //  Definir lo parámetros de solicitud

            FilesResource.ListRequest listRequest = service.Files.List();

            listRequest.PageSize = 500;

            listRequest.Fields = "nextPageToken, files(id, name)";

            // Mostramos la lista de archivos

            IList<Google.Apis.Drive.v3.Data.File> files = listRequest.Execute()

                .Files;

            Console.WriteLine("Archivos:");

            if (files != null && files.Count > 0)

            {

                foreach (var archivos in files)

                {

                    Console.WriteLine("{0} ({1})", archivos.Name, archivos.Id);

                }

            }

            else

            {

                Console.WriteLine("No hay archivos disponibles");

            }

            Console.Read();

            descargarArchivo("0B8xKih1hNvVxbWpOSHVmWkNHV0U", service);

            //crearCarpeta("PruebaDriveApi", service);

            //subirImagen("C:\\Users\\John\\Pictures\\pollo.jpeg", service);

        }

        //DESCARGAR UN ARCHIVO DEL DRIVE

        public static void descargarArchivo(string idArchivo, DriveService service)

        {

            var fileId = idArchivo;

            var request = service.Files.Get(fileId);

            var streamm = new System.IO.MemoryStream();

            request.MediaDownloader.ProgressChanged +=

                (IDownloadProgress progress) =>

                {

                    switch (progress.Status)

                    {

                        case DownloadStatus.Downloading:

                            {

                                Console.WriteLine(progress.BytesDownloaded);

                                break;

                            }

                        case DownloadStatus.Completed:

                            {

                                Console.WriteLine("Descarga completada");

                                Console.WriteLine(fileId);

                                Console.WriteLine("Presione cualquier tecla para continuar...");

                                Console.ReadKey();

                                break;

                            }

                        case DownloadStatus.Failed:

                            {

                                Console.WriteLine("Fallo al descargar");

                                Console.WriteLine("Presione cualquier tecla para continuar...");

                                Console.ReadKey();

                                break;

                            }

                    }

                };

            request.Download(streamm);

        }

        //CREAR UNA CARPETA EN EL DRIVE

        public static void crearCarpeta(string nombreCarpeta, DriveService service)

        {

            var fileMetadata = new Google.Apis.Drive.v3.Data.File()

            {

                Name = nombreCarpeta,

                MimeType = "application/vnd.google-apps.folder"

            };

            var request = service.Files.Create(fileMetadata);

            request.Fields = "Id";

            var file = request.Execute();

            Console.WriteLine("ID del folder: " + file.Id);

        }

        ///////////SUBIR IMAGEN//////////////////7

        private static void subirImagen(string path, DriveService service)

        {

            var fileMetadata = new Google.Apis.Drive.v3.Data.File();

            fileMetadata.Name = Path.GetFileName(path);

            fileMetadata.MimeType = "image/jpeg";

            FilesResource.CreateMediaUpload request;

            using (var stream = new System.IO.FileStream(path, System.IO.FileMode.Open))

            {

                request = service.Files.Create(fileMetadata, stream, "image/jpeg");

                request.Fields = "id";

                request.Upload();

            }

            var file = request.ResponseBody;

            Console.WriteLine("Archivo subido: " + path);

            Console.WriteLine("Presione cualquier tecla para continuar...");

            Console.ReadKey();

        }

    }

}