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