rdp-api refinitiv-data-platform refinitiv-data-platform-libraries python .net websockets error streaming-prices api historical c# trep news proxy search symbology codebook eikon authentication workspace rdp java ipa eikon-data-api time-series rics refinitiv-dataplatform-libraries json bonds snapshot-pricing volatility esg deprecated price-history estimates c data alerts python api level-2 error-403 migration derivatives chain-ric eikon-for-office firewall refinitiv-realtime-optimised logging documentation numpy lipper funds events time-zone eikon-com-api index r metadata rrto error-400 pandas token source-code