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