Get RFQ venue state

Returns whether the RFQ venue currently accepts RFQs from Paradex.

state is the one to act on. It is the more restrictive of two venue states, both also returned:

• platform_state, the venue’s global state, with the scheduled next state in next_platform_state taking effect at next_platform_state_at (unix milliseconds, 0 when the state is unknown);
• venue_state, the venue’s maintenance state for Paradex markets.

A create or an execute refused on the state is answered 400 with error RFQ_VENUE_UNAVAILABLE. A cancel is always sent to the venue; while platform_state is UNAVAILABLE the venue refuses it, and the WebSocket RESULT event reports the refusal. UNKNOWN means the state could not be read recently; requests are then sent to the venue, which answers them through the WebSocket RESULT event.

The state is served from a snapshot refreshed every few seconds, so a change on the venue appears here after up to one refresh.