websockets rrto rdp-api trep refinitiv-realtime-optimised #technology elektron-sdk python refinitiv-realtime api #product authentication ADS c# elektron rics fields connection #content streaming-prices posting token contributions refresh error-login mrn ATS forex pricing java disconnection json ciam node-js aws update-message refinitiv-real-time-optimised market-by-order cloud python api .net chain-ric r error DACS quote rdp stream javascript data delayed-feed testing rkd-api news OMM conflation rmds-test-client news-text-analytics batch ADH licensing date oauth market-price historical market-feed trade documentation snapshot-pricing Service log-in rcc-api refinitiv-real-time post qos time-series stream-id elektron-data-dictionary java-8 rcc volume domain warrants refinitiv-data-platform tick-data web economic-data request-token credentials time-stamp php ema-api streaming-data refinitiv-dataplatform-eikon container eikon key support messages error-message unix perl api-token closure caching error-429 performance error-500 port-number rfa eikon-data-api sequence response refinitiv-data-platform-libraries expiration request visual-studio ipa symbol-list time document parser connection-error datastream-api ts1 lpc setup stream-state sso error-502 url encryption deny-authentication refresh-message error-403 ommconsumer warm-standby ssl FID CONTEX synchronous open-dacs asynchronous workspace vpn non-interactive-provider rt-contribute description app-key logging race-condition entitlements ping futures market-holidays api-key configuration exception sdk error-400 c datastream eap level-2 api-limits derivatives dss-rest-api rt-get socket-exception batch-request session condition-codes typescript sample-code denied-by-src marketpsych page time-out elektron-direct-feed publishing developer-community user-interface status exchange-codes angular sink-driven-source permissioning isin market-depth record-matching-api soap-api refinitiv-realtime-sdk eta-api symbology endpoint