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