AWS .NET SDK Guide

export AWS_ENDPOINT_URL_S3="https://adapter.example.test"

using System;
using Amazon.Runtime;
using Amazon.S3;

var credentials = new StoredProfileAWSCredentials("adapter-test");
var config = new AmazonS3Config
{
    AuthenticationRegion = "us-east-1",
    ForcePathStyle = true,
    Timeout = TimeSpan.FromSeconds(30),
    MaxErrorRetry = 2,
};
IAmazonS3 s3 = new AmazonS3Client(credentials, config);

export T9_CLOUD_ADAPTER_ENDPOINT="https://adapter.example.test"

using System;
using Amazon;
using Amazon.Runtime;
using Amazon.S3;

var credentials = new StoredProfileAWSCredentials("adapter-test");
var config = new AmazonS3Config
{
    ServiceURL = Environment.GetEnvironmentVariable("T9_CLOUD_ADAPTER_ENDPOINT"),
    AuthenticationRegion = "us-east-1",
    ForcePathStyle = true,
    Timeout = TimeSpan.FromSeconds(30),
    MaxErrorRetry = 2,
};

IAmazonS3 s3 = new AmazonS3Client(credentials, config);

using System;
using System.IO;
using Amazon.S3.Model;
using System.Text;

var bucket = Environment.GetEnvironmentVariable("TEST_BUCKET")!;
var key = $"dotnet/{DateTimeOffset.UtcNow.ToUnixTimeMilliseconds()}-hello.txt";
var expected = "hello through Cloud Adapter\n";

var put = await s3.PutObjectAsync(new PutObjectRequest
{
    BucketName = bucket,
    Key = key,
    ContentBody = expected,
    ContentType = "text/plain",
});

var head = await s3.GetObjectMetadataAsync(bucket, key);
using var get = await s3.GetObjectAsync(bucket, key);
using var reader = new StreamReader(get.ResponseStream, Encoding.UTF8);
var actual = await reader.ReadToEndAsync();
if (actual != expected) throw new InvalidOperationException("Downloaded bytes differ");

await s3.DeleteObjectAsync(bucket, key);

try
{
    await s3.GetObjectMetadataAsync(bucket, "missing-key");
}
catch (AmazonS3Exception error)
{
    Console.Error.WriteLine(new
    {
        error.ErrorCode,
        error.StatusCode,
        error.RequestId,
        error.Message,
    });
}
catch (AmazonServiceException error)
{
    Console.Error.WriteLine($"Service failure: {error.Message}");
}