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