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