websockets rrto rdp-api trep refinitiv-realtime-optimised elektron-sdk #technology refinitiv-realtime python api authentication #product ADS elektron c# fields rics connection streaming-prices posting token #content contributions mrn refresh forex pricing error-login java update-message node-js aws ATS market-by-order refinitiv-real-time-optimised cloud disconnection r chain-ric historical snapshot-pricing testing quote documentation Service javascript data error delayed-feed rmds-test-client json news-text-analytics .net market-price conflation rkd-api date OMM market-feed python api news trade log-in batch licensing rcc-api post stream qos rcc time-series stream-id eikon key elektron-data-dictionary request-token warrants tick-data oauth web domain streaming-data refinitiv-dataplatform-eikon time-stamp container messages economic-data DACS credentials rdp support setup denied-by-src java-8 unix lpc rfa deny-authentication status refresh-message eikon-data-api volume url warm-standby sink-driven-source ssl FID ommconsumer record-matching-api refinitiv-data-platform asynchronous time parser workspace open-dacs non-interactive-provider error-message rt-contribute race-condition sso ping caching ts1 performance api-key encryption port-number configuration market-holidays error-502 datastream derivatives rt-get CONTEX ipa socket-exception session php batch-request marketpsych description time-out logging stream-state elektron-direct-feed entitlements publishing futures user-interface ema-api error-400 developer-community c isin level-2 dss-rest-api market-depth permissioning synchronous eta-api endpoint condition-codes refinitiv-realtime-sdk typescript sample-code api-token closure page app-key refinitiv-real-time perl error-500 sequence exchange-codes angular exception expiration eap request api-limits symbol-list response refinitiv-data-platform-libraries document symbology connection-error datastream-api