rdp-api refinitiv-data-platform python rdp api esg ipa elektron-sdk research refinitiv-dataplatform-eikon refinitiv-data-platform-libraries news websockets eikon-data-api token codebook search symbology eikon authentication funds rics forex historical fields refinitiv-realtime rdp search error volatility aws bonds java lipper api-playground data c# python api workspace refinitiv-data-platform-eikon excel pricing streaming-prices pricing-history derivatives bulk-download oauth subscription .net endpoint swaps chain-ric session r request news-topic-code-list jupyter-notebook credentials rfa ssl rkd-api machine-id price-history error-403 volatility-surface tick-history-rest-api zero-curve workspace-data-api corporate-actions documentation equities starmine level-2 error-500 refinitiv-dataplatform-libraries fundamental-data connection Download packages datastream-api app-key json-payload trade eikon-com-api json isin yield-curve beta snapshot-pricing forwards certificate datascope-select developer-community tutorial error-404 vwap futures filter decoder dss rfa-api port-number client-file-store sql csv connection-error error-message html screener data-type firewall throttling rest-api monitoring dss-rest-api ms-access pandas proxy reference-data repo refinitiv-real-time-optimised update-message licensing market screening elektron appkey ms-office exchange-codes example bitcoin ADH usage rrto sfc mifid excel-error elektron-data-dictionary permid-api market-holidays reports callback c++ FTP credit-ratings volume exception corporate-events post scopes permissioning estimates configuration refinitiv-real-time sedol ts1 web rcc refinitiv-realtime-sdk market-by-order parameters gics postman rssl rrt streaming-data networking unix metadata news-filter DACS mrn refinitiv-realtime-optimised economic-data time-series error-login commodities nda-raw holiday qos trep javascript ema-api marketpsych mac-os cloud etf deployment alerts asynchronous date url street-events