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