How to connect to a specific deployed RTDS service using Pyhon RDL?

Sismercados
Sismercados Newcomer
in TREP Infrastructure

How to connect to a specific deployed RTDS service using Pyhon RDL?

I've been able to successfully hand over on-premise server IPs, dacs users and subscribe as snapshot or stream to RICs and specific fields. I was wondering if it was possible to open_session and/or get_data, etc to a specific service within our RTDS ADH service list. e.g. ABC_SELECTFEED


Not exactly sure if this is something that is tied to the configuration file for session establishment or if it is something that can be handed over as a flag when opening a session such as:

rd.open_session(config_name=".\\Configuration\\refinitiv-data.custom.config.json")


Thanks in advance for your help

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Best Answer

  • Jirapongse
    Jirapongse ✭✭✭✭✭
    Answer ✓

    @Sismercados

    Thank you for reaching out to us.

    The content in the refinitiv-data.custom.config.json file should be like this:

    {
         "logs": {
        "level": "debug",
        "transports": {
          "console": {
            "enabled": false
          },
          "file": {
            "enabled": false,
            "name": "refinitiv-data-lib.log"
          }
        }
      },
        "sessions": {
            "default": "platform.my-custom-session",
            "platform": {
                "my-custom-session": {
                    "app-key": "",
                    "realtime-distribution-system": {
                        "url" : "<hostname>:15000",
                        "dacs" : {
                            "username" : "<username>",
                            "application-id" : 256,
                            "position" : ""
                        }
                    }
                }
            }
        }
    }

    The server must be configured to support WebSocket connections.

    Then, refer to the example on GitHub. 

    stream = rd.open_pricing_stream(
        universe=['JPY='],
        service="ABC_SELECTFEED",
        fields=['BID', 'ASK'],
        on_data=display_data
    )

    You can enable the file logging in the configuration file to troubleshoot the problem.

Answers

  • wasin.w
    wasin.w admin

    Hello @Sismercados

    Thank you reaching out to us. You can find how to specify the service name with the Data Library - Python edition from my colleagues' answers in this old post (the question is about requesting ATS data, but the main concept is the same for other RTDS components).

  • Sismercados
    Sismercados Newcomer

    is there also any way where using the stream we can select one of our feeds? 

    stream = rd.content.pricing.Definition(
        universe=ricarray,
        fields=fieldarray
    ).get_stream()

    Or the only way to select a feed is via?

    stream = rd.open_pricing_stream(
        universe=ricarray,
        fields=fieldarray,
        service=session_select,
        on_data=display_data
    )
  • Jirapongse
    Jirapongse ✭✭✭✭✭

    @Sismercados

    I ran help(rd.content.pricing.Definition).

    rd.content.pricing.Definition supports the service parameter.

    1690453080882.png

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