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