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