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