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The ixMerge method on the Vault class creates a transaction instruction that merges PT and YT back into SY tokens.
This method returns SY tokens. If you want to receive the base asset directly (e.g., USDC), use ixMergeToBase instead.

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Usage

import { Vault, LOCAL_ENV } from "@exponent-labs/exponent-sdk";
import { Connection, PublicKey, Transaction, sendAndConfirmTransaction } from "@solana/web3.js";

const connection = new Connection("https://api.mainnet-beta.solana.com");
const vault = await Vault.load(LOCAL_ENV, connection, vaultAddress);

const ix = vault.ixMerge({
  pyIn: 1_000_000n,
  depositor: wallet.publicKey,
});

const tx = new Transaction().add(ix);
const signature = await sendAndConfirmTransaction(connection, tx, [wallet]);

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Required Parameters

ParameterTypeDescription
pyInbigintAmount of PT and YT to merge
depositorPublicKeyThe depositor’s wallet public key

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Optional Parameters

ParameterTypeDescription
ptSrcPublicKeySource PT token account. Defaults to depositor’s ATA
ytSrcPublicKeySource YT token account. Defaults to depositor’s ATA
syDstPublicKeyDestination SY token account. Defaults to depositor’s ATA

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Returns

Returns a TransactionInstruction that merges equal amounts of PT and YT back into SY.