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