Create Amazon S3 Bucket if does not exist C#

• Qayyum
• July 13, 2018
• 13,773

To create Amazon S3 bucket i used nugget package which you can install by running following nugget command in Visual Studio.

Install-Package AWSSDK.S3 -Version 3.3.19

The code part:

public class s3
{
AmazonS3Client client;
<em>
string accessKey = Properties.Settings.Default.s3AccessKey;
string secretKey = Properties.Settings.Default.s3SecretKey;
string bucket = Properties.Settings.Default.s3Bucket;
</em>

public async Task<int> CreateBucket()
{
 try
 {
 using (client = new AmazonS3Client(accessKey, secretKey, Amazon.RegionEndpoint.USEast1))
 {
 bool bucketExist = false;

 S3DirectoryInfo root = new S3DirectoryInfo(client, "");
 Console.WriteLine(accessKey);
 Console.WriteLine(secretKey);
 Console.WriteLine(bucket);

 foreach (S3DirectoryInfo subDirectory in root.GetDirectories())
 {
 if (subDirectory.Name == bucket)
 {
 Console.WriteLine(subDirectory.Name);
 bucketExist = true;
 return 1;
 }
 }

 if (!bucketExist)
 {
 root.CreateSubdirectory(bucket);
 return 2;
 }
 }

 }
 catch (Exception ex)
 {
 MessageBox.Show(ex.Message);
 }

 return 0;
}
}

How to use:

s3 s = new s3();
int response = await s.CreateBucket();

switch (response)
{
 case 1:
 lblCreateBucketStatus.Text = "Bucket already exists, try new name.";
 lblCreateBucketStatus.ForeColor = Color.Orange;
 break;
 case 2:
 lblCreateBucketStatus.Text = "Bucket created.";
 lblCreateBucketStatus.ForeColor = Color.Green;
 break;
 case 0:
 lblCreateBucketStatus.Text = "Failed, Please try again (maybe different bucket name).\nBucket name should be lowercase, no spaces.";
 lblCreateBucketStatus.ForeColor = Color.Red;
 MessageBox.Show("");
 break;
 default:
 break;
}