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