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