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