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