eta-api elektron elektron-sdk rrt refinitiv-realtime elektron-transport-api java c++ rssl reactor trep connection rcc-api c source-directory symbology rrto refinitiv-realtime-sdk batch ssl api consumer log-in rics fields refinitiv-real-time elektron-data-dictionary ADS build linux non-interactive-provider market-by-price rdm multi-threading rcc market-feed encoding callback status Service DACS eikon token api-limits commodities service-id fanout trade contributions dispatch documentation monitoring quote failover search aws ema-api load-balancing compile unsubscribe ipa constituents snapshot-pricing volume rdf pricing refinitiv-realtime-optimised stream-id tick-history-rest-api error rfa service-name refresh-message events subscription mrn time-stamp locking sink-driven-source stale sequence OMM docker performance equities ADH elektron-direct-feed 64-bit exchanges conflation stress-test service-dictionary chain-ric data-model enum open-source disconnection message