Subscription Behavior
Subscribe to Specific Markets
To receive trade updates for specific markets, provide market names in theparams array:
Subscribe to All Markets
To receive trade updates for all available markets, send an emptyparams array:
RPI Field
Trade updates may include anrpi field:
rpi: true- The trade involved a Retail Price Improvement (RPI) orderrpi: falseor absent - Regular trade
RPI orders provide better execution prices than the current best bid/ask for retail traders.