Are we able via the json methods to pass down a RIC
3) Are we able via the json methods to pass down a RIC, FEIcm1 for example, and the field list we require
DSPLY_NAME CURRENCY TRADE_DATE ACTIV_DATE TRDTIM_1 BID ASK
and receive the response (tightly coupled with 2)? If not what is the typical process flow?
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For reference only (answered) 2) Do we always need a schedule? For example there has been an issue with a piece of information and a new extraction is requested as part of normal operation.
Not sure I understand the questions. Do you mean that you want to use the DSS REST API to retrieve intraday market data for a RIC?
The field list you provided seems to be real-time fields which are available in Real-time feed (i.e. Elektron). DSS provides the "Intraday Pricing" extraction which provides intraday pricing from Thomson Reuters real-time network, as well as from various contributors You can find the list of available fields of the Intraday Pricing extraction in the Datascope Select Data Content Guide.
If you do not need to create a schedule for extraction, you can use On Demand extraction which is suitable for ad hoc queries. This type of extraction is self-contained eliminating the need to independently manage report templates, instrument lists. Please see the "Create: Intraday" of "On Demand Extraction" in the C# Example Application for example code and HTTP request.
If my understanding is not correct, please provide further information about your requirement.