Reading Pool State

Call refetch_states first to ensure all decoded values on the instance reflect the latest on-chain data before reading or building instructions.

refetch_states (rpc feature)

Re-fetches all on-chain accounts (config, oracle, curve metadata, prefabs) and updates the instance in-place.

// Requires the `rpc` feature
pool.refetch_states(&rpc_client).await?;

If you are managing account data yourself (Geyser, websocket), reconstruct the pool with Hadron::from_accounts using the latest data instead.

Current midprice decoded from the on-chain Q32 oracle value.

let mid = pool.get_midprice(); // e.g. 1.0023

Returns f64

Current base spread decoded from the on-chain Q32 oracle value. A factor of 0.9995 means 5 bps of spread.

let factor = pool.get_spread_factor(); // e.g. 0.9995
let bps    = pool.get_spread_bps();    // e.g. 5.0

Returns f64

Returns the slot index for each currently active curve.

let slots = pool.get_active_curve_slots();
// ActiveCurveSlots { price_bid: 0, price_ask: 0, risk_bid: 0, risk_ask: 0 }

Returns ActiveCurveSlots

Decodes and returns all four active curves from the appropriate prefab data.

let curves = pool.get_active_curves()?;
// curves.price_bid.points, curves.price_ask.points, etc.

Returns Result<ActiveCurves, HadronSdkError> Each CurveSide contains:

Field	Type	Description
`num_points`	`u8`	Number of curve points
`default_interpolation`	`Interpolation`	Default interpolation mode
`x_mode`	`CurveXMode`	`Native` (token atoms) or `Alternate`
`risk_mode`	`RiskMode`	`Virtual` or `Integrated`
`points`	`Vec<DecodedCurvePoint>`	The decoded curve point array

Decode a specific curve slot by type and index.

use hadron_sdk::types::CurveType;

let curve = pool.get_curve_slot(CurveType::PriceBid, 1)?;

Returns Result<CurveSide, HadronSdkError>

Param	Type	Description
`curve_type`	`CurveType`	One of `PriceBid`, `PriceAsk`, `RiskBid`, `RiskAsk`
`slot`	`u8`	Slot index