使用C＃在ASP.Net中使用Google Drive API将文件上传到Google云端硬盘

Question

Upload Files to Google Drive using Google Drive API in ASP.Net with C#. Initially I have completed all the steps that needs to create the API with google and get Client ID and Client Secret. And then used this code.

protected void Page_Load(object sender, EventArgs e)
{
    connStr = ConfigurationManager.ConnectionStrings["myConnectionString"].ConnectionString;
    con = new SqlConnection(connStr);
    cm = new ClassMain();
    cmd = new SqlCommand();
    google();
}
protected void UploadFile(object sender, EventArgs e)
{
    Session["File"] = FileUpload1.PostedFile;
    GoogleConnect.Authorize("https://www.googleapis.com/auth/drive.file");

}
protected void google()
{
    GoogleConnect.ClientId = "<Client ID>";
    GoogleConnect.ClientSecret = "<Client Secret>";
    GoogleConnect.RedirectUri = Request.Url.AbsoluteUri.Split('?')[0];
    GoogleConnect.API = EnumAPI.Drive;
    if (!string.IsNullOrEmpty(Request.QueryString["code"]))
    {
        string code = Request.QueryString["code"];
        string json = GoogleConnect.PostFile(code, (HttpPostedFile)Session["File"], "");
        GoogleDriveFile file = (new JavaScriptSerializer()).Deserialize<GoogleDriveFile>(json);           
    }
    if (Request.QueryString["error"] == "access_denied")
    {
        ClientScript.RegisterClientScriptBlock(this.GetType(), "alert", "alert('Access denied.')", true);
    }
}

It will work properly for small size of file like 1 to 10 MB, If File size Increase then give error-

The webpage at http://localhost:1762/ChangeADCUploadedNewded/BlankPage.aspx?code=4%2fAk03HmpOQsV5Na_pM2fs5vzdfJTa2yoMzWAy-lD_CVE might be temporarily down or it may have moved permanently to a new web address.

resolve the error.

403-Invalid Credential error is not come at this time.

Answer 1

I did a little research and found that Google used to have the 10MB limit for uploads as you can see here: https://productforums.google.com/forum/#!topic/drive/N9Ruvnf0Jx8 but they increased that limit last year to 1TB. The only limitation that I was able to find for files larger than 10MB is when the uploaded file needs to be converted to a Google Doc, Sheet or Slides.