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The ixCollectEmission method on the YtPosition class creates a transaction instruction that collects a specific emission reward from the yield position. Emissions are auxiliary reward tokens (e.g., governance tokens) distributed to YT depositors.

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Usage

import { Vault, YtPosition, LOCAL_ENV } from "@exponent-labs/exponent-sdk";
import { Connection, 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 ytPosition = await YtPosition.loadByOwner(LOCAL_ENV, connection, wallet.publicKey, vault);

// Collect all of emission at index 0
const ix = ytPosition.ixCollectEmission({
  owner: wallet.publicKey,
  emissionIndex: 0,
});

const tx = new Transaction().add(ix);
const signature = await sendAndConfirmTransaction(connection, tx, [wallet]);
To collect a specific amount: 
const ix = ytPosition.ixCollectEmission({
  owner: wallet.publicKey,
  emissionIndex: 0,
  amount: 1_000_000n,
});

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Required Parameters

ParameterTypeDescription
ownerPublicKeyThe position owner’s wallet public key
emissionIndexnumberIndex of the emission to collect (0-based)

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Optional Parameters

ParameterTypeDescription
emissionDstPublicKeyDestination emission token account. Defaults to owner’s ATA
amountbigintSpecific amount to collect. Defaults to all available

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Returns

Returns a TransactionInstruction that transfers accrued emission rewards to the owner.
Use ytPosition.getClaimableEmissions() to check available emissions and their amounts before collecting.