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