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