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