aws transcoder overwrite files on s3

Question

I'm using the AWS PHP SDK to upload a file to S3 then trancode it with Elastic Transcoder.

First pass everything works fine, the putobject command overwrites the old file (always named the same) on s3:

$s3->putObject([
      'Bucket'     => Config::get('app.aws.S3.bucket'),
      'Key'        => $key,
      'SourceFile' => $path,          
      'Metadata'   => [
        'title'     => Input::get('title')
      ]
    ]);

However when creating a second transcoding job, i get the error:

  The specified object could not be saved in the specified bucket because an object by that name already exists

the transcoder role has full s3 access. Is there a way around this or will i have to delete the files using the sdk everytime before its transcoded?

my create job:

    $result = $transcoder->createJob([
      'PipelineId' => Config::get('app.aws.ElasticTranscoder.PipelineId'),
      'Input' => [
        'Key' => $key
      ],
      'Output' => [
        'Key' => 'videos/'.$user.'/'.$output_key,
        'ThumbnailPattern' => 'videos/'.$user.'/thumb-{count}',
        'Rotate' => '0',
        'PresetId' => Config::get('app.aws.ElasticTranscoder.PresetId')       
      ],
    ]);

Answer 1

The Amazon Elastic Transcoder service documents that this is the expected behavior here: http://docs.aws.amazon.com/elastictranscoder/latest/developerguide/job-settings.html#job-settings-output-key.

If your workflow requires you to overwrite the same key, then it sounds like you should have the job output somewhere unique and then issue an S3 CopyObject operation to overwrite the older file.