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