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 encoding market-feed callback status Service DACS eikon token api-limits commodities fanout service-id trade contributions dispatch documentation monitoring quote failover ema-api search aws load-balancing compile unsubscribe constituents ipa snapshot-pricing volume refinitiv-realtime-optimised rdf pricing stream-id tick-history-rest-api error rfa refresh-message service-name events subscription mrn locking time-stamp sink-driven-source stale sequence OMM docker elektron-direct-feed performance equities ADH 64-bit exchanges conflation chain-ric stress-test service-dictionary enum data-model open-source disconnection message