Everstake Wallet SDK

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Approve Tokens for Redemption Vault

  • approveToRedemptionVault(sender, amount): Prepares an approval transaction that will approve the redemption vault to spend a specified amount of the collateral token on behalf of the sender. This transaction must be executed before redeeming tokens.

Parameters

  • sender (string): The address of the transaction sender
  • amount (BigNumberish): The amount of collateral tokens to approve

Code Example

ts
import { HYSP } from "@everstake/wallet-sdk-hysp";
import { ethers } from "ethers";

// Initialize SDK
const hysp = new HYSP();
await hysp.init("eth_mainnet", "mmev");

const walletAddress = "0x...";
const redeemAmount = "50.0";

// Create approval transaction
const approveTx = await hysp.approveToRedemptionVault(
  walletAddress,
  redeemAmount
);

// Sign and send transaction
const signer = await ethers.getSigner();
const txResponse = await signer.sendTransaction(approveTx);
await txResponse.wait();

Prerequisites

  • Sufficient collateral token balance required
  • Sufficient ETH for gas fees