public async IAsyncEnumerable GetChildrenAsync()

in Core/src/Impl/Storages/AwsS3Storage.cs [234:264]

• 27 lines of code
• 7 McCabe index (conditional complexity)

    public async IAsyncEnumerable<ChildrenItem> GetChildrenAsync(ChildrenMode mode, SymbolStoragePath? prefixDir = null)
    {
      var request = new ListObjectsV2Request()
      {
        BucketName = myBucketName,
        Prefix = prefixDir.HasValue ? SymbolPathToAwsKey(prefixDir.Value) + "/" : null
      };
      
      bool isCompleted = false;
      while (!isCompleted)
      {
        var response = await myS3Client.ListObjectsV2Async(request);
        // According to the tests, `ListObjectsV2Async` returns null in `response.S3Objects` when no keys found
        if (response.S3Objects == null)
          break;
        
        foreach (var s3Object in response.S3Objects.Where(IsUserFile))
        {
          yield return new ChildrenItem
          {
            FileName = AwsKeyToSymbolPath(s3Object.Key),
            Size = (mode & ChildrenMode.WithSize) != 0 ? s3Object.Size : null
          };
        }

        request.ContinuationToken = response.NextContinuationToken;
        Debug.Assert(response.IsTruncated.HasValue, "Unexpected null value of IsTruncated property. It should always be specified");
        isCompleted = !(response.IsTruncated ?? false);
        Debug.Assert(isCompleted || response.NextContinuationToken != null, "Continuation token should be provided when there is more data in the storage");
      }
    }