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