Articles → AWS SDK AND CSHARP → Generate The Presigned URL Of The S3 Bucket’S Object Using C#

Generate The Presigned URL Of The S3 Bucket’S Object Using C#






Steps




  1. Create a S3 bucket.
  2. Upload an image file in the S3 bucket.
  3. Create a project and write code to get the URL.
  4. Output.



Create A S3 Bucket





Upload An Image File In The S3 Bucket




Picture showing uploading an image file on S3 bucket
Click to Enlarge


Create A Project And Write Code To Get The URL




using Amazon; 
using Amazon.S3;
using Amazon.S3.Model;
using System;
 
namespace dotnetS3
{
        class Program
        {
 
                public static void Main(string[] args)
                {
 
                        string bucketName = "gyansangrah-bucket";
 
                        string URL = GetPresignedURL(bucketName, "__counter_function_jmeter_five.jpg");
 
                        Console.WriteLine(URL);
                        Console.ReadLine();
                }
 
                static string GetPresignedURL(string bucketName, string filekey)
                {
                        string url = "";
                        if (!string.IsNullOrEmpty(filekey) && !string.IsNullOrWhiteSpace(filekey))
                                using (IAmazonS3 client = new AmazonS3Client("<Access Id>", "<Secret Key>", RegionEndpoint.USEast2))
                                {
                                        GetPreSignedUrlRequest request = new GetPreSignedUrlRequest();
                                        request.BucketName = bucketName;
                                        request.Key = filekey.TrimEnd('/');
                                        request.Verb = HttpVerb.GET;
                                        request.Expires = DateTime.UtcNow.AddMinutes(1);
                                        url = client.GetPreSignedURL(request);
                                }
                        return url;
                }
 
               
 
        }
}



Output


Picture showing generating the token for presigned URL
Click to Enlarge



Picture showing the image file accessed using the presigned URL
Click to Enlarge




Posted By  -  Karan Gupta
 
Posted On  -  Thursday, February 17, 2022

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