Wrapper Deposit - Exponent Docs

The ixWrapperDeposit instruction deposits base assets into a tranching market. The wrapper mints SY from the base asset, deposits SY into the selected tranche, and mints tranche LP shares.

Usage

import { Transaction, sendAndConfirmTransaction } from "@solana/web3.js";
import { TrancheSide } from "@exponent-labs/exponent-sdk/client/tranching";

const { ixs, setupIxs } = await market.ixWrapperDeposit({
  user: wallet.publicKey,
  trancheSide: TrancheSide.Senior,
  amountBase: 1_000_000_000n, // raw base-token units
  minLpOut: 0n,               // raw Senior LP units; set above 0 for output protection
});

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

Parameters

Parameter	Type	Required	Description
`user`	`PublicKey`	Yes	Wallet depositing into the market
`trancheSide`	`TrancheSide`	Yes	`TrancheSide.Senior` or `TrancheSide.Junior`
`amountBase`	`bigint`	Yes	Base asset amount to deposit, in raw base-token units
`minLpOut`	`bigint`	No	Minimum selected-tranche LP shares to receive, in raw LP units. Defaults to `0n`
`setupPayer`	`PublicKey`	No	Payer for associated token account setup. Defaults to `user`
`tokenBaseSrc`	`PublicKey`	No	Base token source account. Defaults to the user’s base ATA
`tokenSySrc`	`PublicKey`	No	Temporary/user SY token account. Defaults to the user’s SY ATA
`tokenLpDst`	`PublicKey`	No	Destination LP token account. Defaults to the selected LP ATA
`tokenProgram`	`PublicKey`	No	SPL Token program for SY and LP token accounts

Returns

Returns an object with:

ixs - Instructions that perform the SY mint, tranche deposit, and flavor-specific pre/post steps
setupIxs - Associated token account setup instructions for base, SY, and LP token accounts

Always include setupIxs before ixs in the transaction. The setup instructions are idempotent.

Deposits update market NAV before minting LP shares. Use minLpOut if the transaction depends on a specific output amount.