Как я могу получить один объект из определенной папки в корзине Amazon S3

Question

Как я могу получить один объект из определенной папки в корзине Amazon S3?

Используя язык Asp.Net C #, я не знаю, как извлечь один объект, находящийся в папке.в ведро Amazon S3 Service?

Что я пробовал до сих пор:

var putRequest1 = new PutObjectRequest { BucketName = bucketName, Key = 
"Employee/Word.pdf", FilePath = filePath, }; PutObjectResponse response1 = 
await client.PutObjectAsync(putRequest1); var putRequest2 = new 
PutObjectRequest { BucketName = bucketName, Key = "Employee/Tenses.txt", 
FilePath = filePath, }; PutObjectResponse response2 = await 
client.PutObjectAsync(putRequest2); 

Answer 1

Из документации AWS Получение объекта с помощью AWS SDK для .NET .

using Amazon.S3;
using Amazon.S3.Model;
using System;
using System.IO;
using System.Threading.Tasks;

namespace Amazon.DocSamples.S3
{
    class GetObjectTest
    {
        private const string bucketName = "*** bucket name ***";
        private const string keyName = "*** object key ***";
        // Specify your bucket region (an example region is shown).
        private static readonly RegionEndpoint bucketRegion = RegionEndpoint.USWest2;
        private static IAmazonS3 client;

        public static void Main()
        {
            client = new AmazonS3Client(bucketRegion);
            ReadObjectDataAsync().Wait();
        }

        static async Task ReadObjectDataAsync()
        {
            string responseBody = "";
            try
            {
                GetObjectRequest request = new GetObjectRequest
                {
                    BucketName = bucketName,
                    Key = keyName
                };
                using (GetObjectResponse response = await client.GetObjectAsync(request))
                using (Stream responseStream = response.ResponseStream)
                using (StreamReader reader = new StreamReader(responseStream))
                {
                    string title = response.Metadata["x-amz-meta-title"]; // Assume you have "title" as medata added to the object.
                    string contentType = response.Headers["Content-Type"];
                    Console.WriteLine("Object metadata, Title: {0}", title);
                    Console.WriteLine("Content type: {0}", contentType);

                    responseBody = reader.ReadToEnd(); // Now you process the response body.
                }
            }
            catch (AmazonS3Exception e)
            {
                Console.WriteLine("Error encountered ***. Message:'{0}' when writing an object", e.Message);
            }
            catch (Exception e)
            {
                Console.WriteLine("Unknown encountered on server. Message:'{0}' when writing an object", e.Message);
            }
        }
    }
}