hxUht9BN

1public bool Exists(string fileKey, string bucketName)
2{
3        try
4        {
5            response = _s3Client.GetObjectMetadata(new GetObjectMetadataRequest()
6               .WithBucketName(bucketName)
7               .WithKey(key));
8
9            return true;
10        }
11
12        catch (Amazon.S3.AmazonS3Exception ex)
13        {
14            if (ex.StatusCode == System.Net.HttpStatusCode.NotFound)
15                return false;
16
17            //status wasn't not found, so throw the exception
18            throw;
19        }
20}
21	
22using (var client = Amazon.AWSClientFactory.CreateAmazonS3Client(accessKey, secretKey))
23{
24    S3FileInfo s3FileInfo = new Amazon.S3.IO.S3FileInfo(client, "your-bucket-name", "your-file-name");
25    if (s3FileInfo.Exists)
26    {
27         // file exists
28    }
29    else
30    {
31        // file does not exist
32    }   
33}
34	
35var request = new ListObjectsRequest()
36        .WithBucketName(_bucketName)
37        .WithPrefix(keyPrefix);
38
39    var response = _amazonS3Client.ListObjects(request);
40
41    var exists = response.S3Objects.Count > 0;
42
43    foreach (var obj in response.S3Objects) {
44        // act
45    }
46	
47using (IAmazonS3 s3Client = new AmazonS3Client(accessKey, secretKey))
48{
49    S3DirectoryInfo s3DirectoryInfo = new Amazon.S3.IO.S3DirectoryInfo(s3Client, "testbucket");
50    if (s3DirectoryInfo.GetFiles("test*").Any())
51    {
52        //file exists -- do something
53    }
54    else
55    {
56        //file doesn't exist -- do something else
57    }
58}
59	
60BasicAWSCredentials credentials = new BasicAWSCredentials("accessKey", "secretKey");
61
62AmazonS3Config configurationAmazon = new AmazonS3Config();
63configurationAmazon.RegionEndpoint = S3Region.EU; // or you can use ServiceUrl
64
65AmazonS3Client s3Client = new AmazonS3Client(credentials, configurationAmazon);
66
67
68S3DirectoryInfo directoryInfo = new S3DirectoryInfo(s3Client, bucketName);
69            bucketExists = directoryInfo.Exists;// true if the bucket exists in other case false.
70	
71S3FileInfo info = new S3FileInfo(s3Client, "butcketName", "key");
72bool fileExists = info.Exists; // true if the key Exists in other case false
73	
74ListObjectsRequest request = new ListObjectsRequest();
75        try
76        {
77            request.BucketName = "bucketName";
78            request.Prefix = "prefix"; // or part of the key
79            request.MaxKeys = 1; // max limit to find objects
80            ListObjectsResponse response = s3Client .ListObjects(request);
81            return response.S3Objects.Count > 0;
82        }
83	
84public boolean exists(AmazonS3 s3, String bucket, String key) {
85    ObjectListing list = s3.listObjects(bucket, key);
86    return list.getObjectSummaries().size() > 0;
87}
88	
89s3 = new S3(S3KEY, S3SECRET, false);
90 res = s3->getObjectInfo(bucketName, filename);
91	
92NameValueCollection appConfig = ConfigurationManager.AppSettings;
93
94        AmazonS3 s3Client = AWSClientFactory.CreateAmazonS3Client(
95                appConfig["AWSAccessKey"],
96                appConfig["AWSSecretKey"],
97                Amazon.RegionEndpoint.USEast1
98                );
99
100S3DirectoryInfo source = new S3DirectoryInfo(s3Client, "BUCKET_NAME", "Key");
101if(source.Exist)
102{
103   //do ur stuff
104}