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Question by Jerome Guiot-Dorel · Nov 01, 2017 at 05:54 AM · Downloaddownload file

TRTH V2 : x-direct-download option

Hello,

As already explained, I did a manual schedule on the DSS website and got a file of 1.5Go (Time and sales data). When I tried to download it, it has required two hours. Even with a 800Mo/s download line... Something weird and quite unexpected !

In the post "TRTH slow download speed", user RTPKRSQT48 explains without the option x-direct-download, DSS is useless for big files.
I agree with this statement.

My questions are :
1) Is this option only available if you download data from AWS ?
2) Would it be possible to have information on this option which seems to be paramount ? A dedicated tutorial would seem appropriate.
3) Are there others options of this importance available ?

Best

JGD

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Answer by Christiaan Meihsl · Nov 15, 2017 at 07:46 AM

@Jerome Guiot-Dorel, an article on AWS downloads has just been published. You might find it useful to understand this new feature.

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Answer by jirapongse.phuriphanvichai · Nov 02, 2017 at 02:52 AM

1) Is this option only available if you download data from AWS ?

This option (x-direct-download) is available in TRTH REST API for VBD (Venue by Day) data, Tick History Time and Sales, Tick History Market Depth, Tick History Intraday Summaries, and Tick History Raw reports. With this header, the request will be redirected to AWS for faster download.

2) Would it be possible to have information on this option which seems to be paramount ? A dedicated tutorial would seem appropriate.

You can refer to TRTH release guide on page 7 (Faster Downloads for Custom Reporting). We also have examples:

  • TRTH Java Code Examples
  • Go example
  • C# example

Please also refer to ADVISORY: DIRECTLY DOWNLOADING FROM AMAZON GENERATES ERROR

3) Are there others options of this importance available ?

Currently, using AWS is the fastest way to download files. Another option is using concurrent downloads with Range header. For more information, please refer to this document.

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