lel lel - 3 years ago 228
ASP.NET (C#) Question

Upload file into S3 with AWS SDK ASP.NET

I am trying to upload an image from ASP.NET to S3. I am using AWS SDK for that and have already set up what is needed. However, after i run my project, i received an error. I'll be replacing my bucket name to ... for this sample code.

I set up my secretkey and accesskey from User in my Web.config. Please do tell me if u need more codes. I need help.


private static readonly string _awsAccessKey = ConfigurationManager.AppSettings["AWSAccessKey"];

private static readonly string _awsSecretKey = ConfigurationManager.AppSettings["AWSSecretKey"];

        public ActionResult UploadFile(HttpPostedFileBase file)  
if (file.ContentLength > 0)

IAmazonS3 client;
using (client = Amazon.AWSClientFactory.CreateAmazonS3Client(_awsAccessKey, _awsSecretKey))
PutObjectRequest request = new PutObjectRequest
BucketName = "...",
CannedACL = S3CannedACL.PublicRead,
Key = "images/" + (DateTime.Now.ToBinary() + "-" + file.FileName),
FilePath = Server.MapPath("~/UploadedFiles")



imageUrls = "File Uploaded Successfully!!";
System.Diagnostics.Debug.WriteLine("File Uploaded Successfully!!");

return Json(imageUrls);
                ViewBag.Message = "File upload failed!!";
System.Diagnostics.Debug.WriteLine("File upload failed!!");
return Json(ViewBag.Message);  

lel lel
Answer Source

I finally solved it. I realized i did not place region in AWSClientFactory, right at the end after the keys.

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