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