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