Pool Admin Controls

setPoolState

Pools are initialised by default as Reject Swaps. This is done to deposit funds to prevent indexing from aggregators

pool.setPoolState(authority, { newState: PoolState.Paused });

//// Send the instructions

Param	Description
`params.Initialized`	Pool is live and will be indexed by aggregators
`params.Paused`	All operations are paused in the pool
`params.RejectSwaps`	Swaps are rejected, but the user can perform all other actions

nominateAuthority / acceptAuthority

Hadron pools have multiple authorities that can each be delegated to different wallets to split the surface area of control.

pool.nominateAuthority(authority, { 
newAuthority: newPk, 
expirySlot: 300_000_000n }); 

// Expiry - optional parameter for the number of slots 
// newAuthority signs: pool.acceptAuthority(newPk);

The pool has three states that can be rotated as follows by various authorities:

From → To	Pool Authority	Quoting Authority	Pauser Authority
`Initialized → Paused`	✅	❌	✅
`Initialized → RejectSwaps`	✅	✅	❌
`Paused → Initialized`	✅	❌	❌
`Paused → RejectSwaps`	✅	❌	❌
`RejectSwaps → Initialized`	✅	❌	❌
`RejectSwaps → Paused`	✅	❌	✅

What each state blocks:

State	Swaps	Deposits	Withdrawals
`Initialized`	✅	✅	✅
`RejectSwaps`	❌	✅	✅
`Paused`	❌	❌	❌

closePool

Closes the pool and reclaims rent. Requires authority and all vaults to be empty.

pool.closePool(authority);

Properties

These are available on anyHadroninstance after creation:

Property	Type	Description
`pool.poolAddress`	`PublicKey`	The pool’s on-chain address
`pool.programId`	`PublicKey`	Program ID
`pool.addresses`	`PoolAddresses`	All derived PDA addresses for this pool
`pool.config`	`DecodedConfig`	Decoded config account data
`pool.oracle`	`DecodedMidpriceOracle`	Decoded oracle data
`pool.curveMeta`	`DecodedCurveMeta`	Decoded curve metadata

TypeScript

Rust

setPoolState

nominateAuthority / acceptAuthority

closePool

Properties

​setPoolState

​nominateAuthority / acceptAuthority

​closePool

​Properties

setPoolState

nominateAuthority / acceptAuthority

closePool

Properties