Is there a way to get exchange id/name from RIC or subscription code before receiving messages?

mojtaba.danai
mojtaba.danai Explorer
in EMA

Hi,

We are using Reuters Elektron EMA C++. Is there a way to get the exchange code/id/name from RIC or the subscription code like (ESU7) before registering the consumer for the refresh and update callbacks at run time?

I know that you can get the exchange code/id in the refresh message (received via the callback) as the value of the field RDN_EXHID, but we wish to get this information at run time before subscribing.

Thanks.

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Best Answer

  • moragodkrit.chumsri_1
    moragodkrit.chumsri_1 LSEG
    Answer ✓

    @mojtaba.danai

    EMA does not have capability to get this information at run time before subscribing data. To get the data from TREP APIs(EMA/ETA/RFA) you have to send item request to provider server and then process the response message from item callback(Refresh/Update/Status) to get data from FID/Field you are monitoring.

    From the description it sounds like you are implementing different class for request data for different Exchange, so you want to check Exchange name/code before choosing right class to open a new subscription?

    If it's the case, you may need to re-design it to check Exchange code in the Refresh message and then copy data from callback and pass it to different data process logic for each Exchange instead.

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