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