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Closing a Position

To close a position, you must first withdraw all liquidity and collect all fees and rewards from the position. You can then call the closePosition instruction to close and burn the position NFT.

The parameters of closePosition are identical to the ones in openPosition.

Whirlpool Client - Sample Code​

The WhirlpoolClient version of closePosition will automatically call decrease_liquidity and close_position for you. Note that you still have to manually call collect_fees and collect_reward to make sure the position is empty.

const client = new WhirlpoolClient(context, fetcher);
const poolAddress = PDAUtil.getPool(...)
const positionAddress = PDAUtil.getPosition(...);

const pool = client.getPool(poolAddress);
// Must manually call update_fee_and_rewards -> collect_fees -> collect_rewards
// Convienience function coming soon.
const tx = await pool.closePosition(positionAddress, Percentage.fromFraction(1, 100))
await tx.buildAndExecute();

Instruction - Sample Code​

const poolAddress = PDAUtil.getPool(...)
const positionAddress = PDAUtil.getPosition(...);
const position = await fetcher.getPosition(positionAddress);
// Must manually call decrease_liquidity here
const tx = await toTx(ctx, WhirlpoolIx.closePositionTx(ctx, {
    positionAuthority: ctx.wallet.publicKey,
    receiver: ctx.wallet.publicKey,
    positionTokenAccount,
    position: positionAddress,
    positionMint: position.positionMint,
}))
await tx.buildAndExecute();

Common Errors​

  • ClosePositionNotEmpty (0x1775) - Position still has liquidity in it. Withdraw all before calling this instruction.