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