CLOB orderbook for the YES (and optionally NO) token of one market
get
/v1/markets/polymarket/markets/{conditionId}/orderbookReturns the YES token's bids and asks under `yes`. Pass `?side=both` to also include the NO book under `no` (parallel CLOB fetch). Pass `?side=no` to return only NO (mounted under `yes` for shape uniformity). Cached 2s. Unknown conditionId / missing YES token → 404 `not_found`.