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