S3ShowTextItem.cs - AWS Code Sample


S3ShowTextItem.cs demonstrates how to display a text-only Amazon S3 bucket item.

/******************************************************************************* * Copyright 2009-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved. * * 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 * * http://aws.amazon.com/apache2.0/ * * or in the "license" file accompanying this file. 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. *******************************************************************************/ /* To compile, use the VS command prompt and run (all on one line): csc S3ShowTextItem.cs /reference:"C:\Program Files (x86)\AWS SDK for .NET\bin\Net45\AWSSDK.Core.dll" /reference:"C:\Program Files (x86)\AWS SDK for .NET\bin\Net45\AWSSDK.S3.dll" To run: S3ShowTextItem.exe REGION BUCKET ITEM OUTPUT-FILE */ using System; using System.IO; using System.Threading; using System.Threading.Tasks; using Amazon; using Amazon.S3; using Amazon.S3.Model; namespace S3ShowTextItem { class S3Sample { static async Task<GetObjectResponse> MyGetObjectAsync(string region, string bucket, string item) { RegionEndpoint reg = RegionEndpoint.GetBySystemName(region); AmazonS3Client s3Client = new AmazonS3Client(reg); Console.WriteLine("Retrieving (GET) an object"); GetObjectResponse response = await s3Client.GetObjectAsync(bucket, item, new CancellationToken()); return response; } public static void Main(string[] args) { if (args.Length < 4) { Console.WriteLine("You must supply a region, bucket name, text file name, and output file name"); return; } try { Task<GetObjectResponse> response = MyGetObjectAsync(args[0], args[1], args[2]); Stream responseStream = response.Result.ResponseStream; StreamReader reader = new StreamReader(responseStream); string responseBody = reader.ReadToEnd(); using(FileStream s = new FileStream(args[3], FileMode.Create)) using(StreamWriter writer = new StreamWriter(s)) { writer.WriteLine(responseBody); } } catch (AmazonS3Exception s3Exception) { Console.WriteLine(s3Exception.Message, s3Exception.InnerException); } Console.WriteLine("Press enter to continue"); Console.ReadLine(); } } }

Sample Details

Service: s3

Last tested: 2020-01-18

Author: AWS-NET-DG

Type: full-example