dss-rest-api dss datascope-select rest-api rics tick-history-rest-api pricing api historical python extraction c# forex java authentication .net data chain-ric corporate-actions time-series error dss-gui isin json search bonds symbology FTP http dss-soap-api index funds soap-api entity terms-and-conditions api-limits embargo report-template sftp time-out certificate credit-ratings on-demand-extraction status fields derivatives equities token migration futures quote connection sdk eikon exchanges lipper template postman permid-api json-payload tick-data price-history excel market-depth elektron-sdk exchange-codes performance expired-contract rfa datastream-api usage venue-by-day ssl log-in etf error-429 response expiration date asynchronous linux commodities legacy volume request bulk-download condition-codes time-stamp filter proxy yield ric corporate-events page constituents eikon-data-api time-zone eonia error-400 spread rate-match qualifier delayed-feed error-500 permissioning sedol azure error-502 credentials configuration vwap time matlab euribor node-js oauth hardware exchange-holidays handshake visual-studio trade exception issue netes support pricing-history quickstart-guide licensing web model-view-controller stream static-data tls direct-feed gui api-token csv pe-code delphi synchronous error-handling environment upgrading world-check documentation rdp-api sql splunk vba trbc starmine trth-rest-api request-token orhpaned-instrument repo timeseries web-services connection-error url pending-job maturity calendar fix-protocol metadata example error-404 nuget error-408 polling error-message multi-threading market-price c++ rdms refinitiv-realtime events reports deserialize settlement forwards mnemonics jar