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