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