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The ixWrapperRemoveOffer instruction removes an existing order from the Exponent orderbook.

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Usage

import { PublicKey } from "@solana/web3.js";

const ix = await orderbook.ixWrapperRemoveOffer({
  trader: wallet.publicKey,
  offerIdx: 0,
  mintSy: syMintAddress,
});

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Required Parameters

ParameterTypeDescription
traderPublicKeyThe trader’s wallet public key
offerIdxnumberThe index of the offer to remove
mintSyPublicKeyThe SY token mint address

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Optional Parameters

ParameterTypeDescription
ptSrcPublicKeyPT token source account
ytSrcPublicKeyYT token source account
sySrcPublicKeySY token source account
tokenBaseTraderPublicKeyBase token account for the trader

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Returns

Returns a TransactionInstruction that removes the specified order from the orderbook.
Removing an order automatically stages any accrued YT interest before returning tokens to your escrow. Collect staged interest separately via ixWrapperCollectInterest.

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Finding the Offer Index

Use getUserOpenOrders to get the list of open orders and their indices: 
const openOrders = orderbook.getUserOpenOrders(wallet.publicKey);

for (const order of openOrders) {
  console.log("Offer index:", order.offerIndex);
  console.log("Amount:", order.amount);
  console.log("Price APY:", order.priceApy);
}

// Remove the first open order
const ix = await orderbook.ixWrapperRemoveOffer({
  trader: wallet.publicKey,
  offerIdx: openOrders[0].offerIndex,
  mintSy: syMintAddress,
});