Configure aws-sdk-net for R2

You must generate an Access Key before getting started. All examples will utilize access_key_id and access_key_secret variables which represent the Access Key ID and Secret Access Key values you generated.

This example uses version 3 of the aws-sdk-net package. You must pass in the R2 configuration credentials when instantiating your S3 service client:

​​ Client setup

In this example, you will pass credentials explicitly to the IAmazonS3 initialization. If you wish, use a shared AWS credentials file or the SDK store in-line with other AWS SDKs. Refer to Configure AWS credentials for more details.

​​ List buckets and objects

The ListBucketsAsync and ListObjectsAsync methods can be used to list buckets under your account and the contents of those buckets respectively.

​​ Upload and retrieve objects

The PutObjectAsync and GetObjectAsync methods can be used to upload objects and download objects from an R2 bucket respectively.

​​ Generate presigned URLs

The GetPreSignedURL method allows you to sign ahead of time, giving temporary access to a specific operation. In this case, presigning a PutObject request for sdk-example/file.txt.