AWS Code Sample

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TempCredExplicitSessionStartTest.cs demonstrates how to send authenticated requests using IAM user temporary credentials.

/** * Copyright 2010-2019, Inc. or its affiliates. All Rights Reserved. * * This file is licensed under the Apache License, Version 2.0 (the "License"). * You may not use this file except in compliance with the License. A copy of * the License is located at * * * * This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR * CONDITIONS OF ANY KIND, either express or implied. See the License for the * specific language governing permissions and limitations under the License. */ using Amazon.Runtime; using Amazon.S3; using Amazon.S3.Model; using Amazon.SecurityToken; using Amazon.SecurityToken.Model; using System; using System.Collections.Generic; using System.Threading.Tasks; namespace Amazon.DocSamples.S3 { class TempCredExplicitSessionStartTest { private const string bucketName = "*** bucket name ***"; // Specify your bucket region (an example region is shown). private static readonly RegionEndpoint bucketRegion = RegionEndpoint.USWest2; private static IAmazonS3 s3Client; public static void Main() { ListObjectsAsync().Wait(); } private static async Task ListObjectsAsync() { try { // Credentials use the default AWS SDK for .NET credential search chain. // On local development machines, this is your default profile. Console.WriteLine("Listing objects stored in a bucket"); SessionAWSCredentials tempCredentials = await GetTemporaryCredentialsAsync(); // Create a client by providing temporary security credentials. using (s3Client = new AmazonS3Client(tempCredentials, bucketRegion)) { var listObjectRequest = new ListObjectsRequest { BucketName = bucketName }; // Send request to Amazon S3. ListObjectsResponse response = await s3Client.ListObjectsAsync(listObjectRequest); List<S3Object> objects = response.S3Objects; Console.WriteLine("Object count = {0}", objects.Count); } } catch (AmazonS3Exception s3Exception) { Console.WriteLine(s3Exception.Message, s3Exception.InnerException); } catch (AmazonSecurityTokenServiceException stsException) { Console.WriteLine(stsException.Message, stsException.InnerException); } } private static async Task<SessionAWSCredentials> GetTemporaryCredentialsAsync() { using (var stsClient = new AmazonSecurityTokenServiceClient()) { var getSessionTokenRequest = new GetSessionTokenRequest { DurationSeconds = 7200 // seconds }; GetSessionTokenResponse sessionTokenResponse = await stsClient.GetSessionTokenAsync(getSessionTokenRequest); Credentials credentials = sessionTokenResponse.Credentials; var sessionCredentials = new SessionAWSCredentials(credentials.AccessKeyId, credentials.SecretAccessKey, credentials.SessionToken); return sessionCredentials; } } } }

Sample Details

Service: s3

Last tested: 2018-04-30

Author: AWS

Type: full-example

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