eta-api elektron-sdk elektron refinitiv-realtime rrt elektron-transport-api #technology java c++ rssl c trep refinitiv-realtime-sdk reactor rcc-api connection source-directory #product refinitiv-real-time rrto symbology consumer rics batch api ADS #content fields RWF log-in ssl elektron-data-dictionary ema-api refinitiv-realtime-optimised DACS rcc market-feed multi-threading build rdm ADH callback locking api-limits contributions stream-id Service status non-interactive-provider linux token eikon market-by-price encoding pricing service-name conflation streaming-data upa tls snapshot-pricing docker search commodities c# events chain-ric performance data rdf load-balancing OMM fanout error-400 tick-history-rest-api websockets mrn refinitiv-real-time-optimised enum stress-test 64-bit service-dictionary unsubscribe streaming watchlist elektron-direct-feed compile sink-driven-source equities time-stamp open-source service-id rfa streaming-prices symbol-list data-model constituents monitoring sequence datastream-api failover issue dispatch trade refresh-message request-token disconnection error json volume date exchanges aws ipa authentication quote subscription sdk documentation stale message