edp research api elektron api rdp esg elektron symbology token_authentication python research websocket elektron data platform token ert in cloud subscription historical data dead subscription ETA fields cfs api ert #edpapi news authentication token oauth2 elektron data plat refresh token datafields subscription ipa parameters self signed certificate in certificate chain monitoring subscription decoder ipdp eikon bonds code 500 badrequest currency urlencode n2_ubms field descripiton we see pricing source error message platform reuters api convert holiday data quality equity option chains Download ssl certificates csv ric hedd deletion elektron apis create id rssl interday-summaries upa market data raw fields datastream in python ema request not getting through tutorial json python api eikon starmine eta consumer elektrontimeseries ibes elektron websocket api beta websockets python eikon edp historical pricing data aws electron data platform surface of volatility adh connect to ert in cloud clear decoder python javascript authentication multiple rics internal server error post historical price c# pricing decodesqsqueue suse news eikon api java sdk access ts1 company news fid 4268 websocket api rfa8.0 market qos xmalib ric transformation delete mk_phase futures ss metadata elektron sdk - java 403 response elektron_dd trading status update message datastream intraday-summaries rfa company research reports retrieve data eta api raw data data fields views how to get only increments for volatility python api password change method ipa fx cross currency cloud schema file for edp research data refinitiv historical search