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