The ixMergeToBase method on the Vault class creates transaction instructions that merge PT and YT back into SY and then unwrap the SY into the base asset in a single atomic operation.
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 { ixs, setupIxs } = await vault.ixMergeToBase({
owner: wallet.publicKey,
amountPy: 1_000_000_000n,
});
const tx = new Transaction().add(...setupIxs, ...ixs);
const signature = await sendAndConfirmTransaction(connection, tx, [wallet]);
This method returns both setupIxs (token account creation) and ixs (the merge + unwrap instructions, including any pre/post instructions from the flavor). Make sure to include both in your transaction.
Required Parameters
| Parameter | Type | Description |
|---|
owner | PublicKey | The owner’s wallet public key |
amountPy | bigint | Amount of PT and YT to merge |
Optional Parameters
| Parameter | Type | Description |
|---|
ptSrc | PublicKey | Source PT token account. Defaults to owner’s ATA |
ytSrc | PublicKey | Source YT token account. Defaults to owner’s ATA |
syDst | PublicKey | Intermediate SY token account. Defaults to owner’s ATA |
baseDst | PublicKey | Destination base token account |
Returns
Returns a Promise<{ ixs: TransactionInstruction[]; setupIxs: TransactionInstruction[] }>:
ixs — The merge and unwrap instructions, including any flavor-specific pre/post instructionssetupIxs — Setup instructions that create associated token accounts for SY, PT, and YT
