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