Savings GHO (sGHO) 🟡

Savings GHO (sGHO) is the Aave Protocol's native savings mechanism for the GHO stablecoin, deployed on Ethereum mainnet. sGHO allows GHO holders to supply their tokens to a smart contract and receive sGHO that accumulates rewards paid in GHO. This mechanism has no cooldowns to redeem sGHO for GHO, no slashing risk, and no rehypothecation of supplied funds. All rewards for sGHO holders are distributed through the Merit program.

Deposit

To start earning rewards by depositing GHO into sGHO, follow these steps.

First, prepare the execution plan for the deposit operation.

• React

• TypeScript

• GraphQL

Use the useSavingsGhoDeposit hook to create the execution plan for depositing GHO to sGHO.

Deposit GHO

import { useWalletClient } from "wagmi";import { useSavingsGhoDeposit, bigDecimal, evmAddress } from "@aave/react";
// …
const { data: walletClient } = useWalletClient();
const [deposit, depositing] = useSavingsGhoDeposit();
const execute = async () => {  const result = await deposit({    amount: {      value: bigDecimal(1000), // 1000 GHO    },    depositor: evmAddress(walletClient!.account.address),  });
  // …};

2. Process the Execution Plan

Then, handle the execution plan.

• React

• TypeScript

• GraphQL

Use the useSendTransaction hook for the wallet library of your choice to send the transactions in the execution plan.

Viem

import { useWalletClient } from "wagmi";import { errAsync, useSavingsGhoDeposit } from "@aave/react";import { useSendTransaction } from "@aave/react/viem";
// …
const { data: walletClient } = useWalletClient();
const [deposit, depositing] = useSavingsGhoDeposit();const [sendTransaction, sending] = useSendTransaction(walletClient);
// …
const loading = depositing.loading || sending.loading;const error = depositing.error || sending.error;
// …
const execute = async () => {  const result = await deposit({    // …  }).andThen((plan) => {    switch (plan.__typename) {      case "TransactionRequest":        // Single transaction execution        return sendTransaction(plan);
      case "ApprovalRequired":        // Approval + transaction sequence        return sendTransaction(plan.approval).andThen(() =>          sendTransaction(plan.originalTransaction)        );
      case "InsufficientBalanceError":        return errAsync(          new Error(`Insufficient balance: ${plan.required.value} required.`)        );    }  });
  if (result.isErr()) {    console.error("Deposit failed:", result.error);  } else {    console.log("Deposit successful with hash:", result.value);  }};

Balance

Retrieve the balance of a user's sGHO.

• React

• TypeScript

• GraphQL

Use the useSavingsGhoBalance hook to fetch the balance of a user's sGHO.

• Loading State

• React Suspense

const { data, loading, error } = useSavingsGhoBalance({  user: EvmAddress,});

Fetch the balance of a user's sGHO.

sGHO Balance

import { useSavingsGhoBalance, evmAddress } from "@aave/react";
// …
const { data, loading, error } = useSavingsGhoBalance({  user: EvmAddress,});
if (loading) {  return <p>Loading sGHO balance...</p>;}
if (error) {  return <p>Error: {error.message}</p>;}
// data: TokenAmount

Withdraw

Withdraw sGHO to GHO instantly with no cooldown period. You can still claim any previous rewards.

Follow these steps to withdraw sGHO to GHO:

1. Prepare the Execution Plan

First, prepare the execution plan for the withdrawal operation.

• React

• TypeScript

• GraphQL

Use the useSavingsGhoWithdraw hook to create the execution plan for withdrawing sGHO to GHO.

Withdraw GHO

import { useWalletClient } from "wagmi";import { useSavingsGhoWithdraw, bigDecimal, evmAddress } from "@aave/react";
// …
const { data: walletClient } = useWalletClient();
const [withdraw, withdrawing] = useSavingsGhoWithdraw();
const execute = async () => {  const result = await withdraw({    amount: {      value: bigDecimal(1000), // 1000 sGHO    },    sharesOwner: evmAddress(walletClient!.account.address),    // recipient: evmAddress("0x1234…"), if different from sharesOwner  });
  // …};

2. Process the Execution Plan

Finally, handle the execution plan.

• React

• TypeScript

• GraphQL

Use the useSendTransaction hook for the wallet library of your choice to send the transaction.

Viem

import { useWalletClient } from "wagmi";import {  useSavingsGhoWithdraw,  bigDecimal,  evmAddress,  errAsync,} from "@aave/react";import { useSendTransaction } from "@aave/react/viem";
// …
const { data: walletClient } = useWalletClient();
const [withdraw, withdrawing] = useSavingsGhoWithdraw();const [sendTransaction, sending] = useSendTransaction(walletClient);
const loading = withdrawing.loading || sending.loading;const error = withdrawing.error || sending.error;
// …
const execute = async () => {  const result = await withdraw({    amount: {      value: bigDecimal(1000), // 1000 sGHO    },    sharesOwner: evmAddress(walletClient!.account.address),    // recipient: evmAddress("0x1234…"), if different from sharesOwner  }).andThen((plan) => {    switch (plan.__typename) {      case "TransactionRequest":        // Single transaction execution        return sendTransaction(plan);
      case "ApprovalRequired":        // Approval + transaction sequence        return sendTransaction(plan.approval).andThen(() =>          sendTransaction(plan.originalTransaction)        );
      case "InsufficientBalanceError":        return errAsync(          new Error(            `Insufficient balance to withdraw: ${plan.required.value} is the maximum withdrawal allowed.`          )        );    }  });
  if (loading) {    return <p>Withdrawing sGHO to GHO...</p>;  }
  if (error) {    return <p>Error: {error.message}</p>;  }};

---

Claiming Incentives

Users who deposit into sGHO become eligible for rewards distributed through Merkl.

These rewards are not automatically added to the sGHO balance, they must be claimed separately.

Users can claim rewards in two ways:

• Through the ACI Merit UI for a simple interface to view and claim rewards

• Using the SDK

Follow these steps to claim rewards using the SDK:

1. Fetch the Claimable Rewards

First, determine if a user has claimable rewards.

• React

• TypeScript

• GraphQL

Use the useUserMeritRewards hook to fetch the user's sGHO claimable rewards and the transaction to claim them.

• Loading State

• React Suspense

const { data, loading, error } = useUserMeritRewards({  user: EvmAddress,  chainId: ChainId,});

Fetch the user's claimable rewards and the transaction to claim them.

sGHO Rewards

import { useUserMeritRewards, evmAddress, chainId } from "@aave/react";
// …
const sGHO_ADDRESS = evmAddress("0x1a88Df1cFe15Af22B3c4c783D4e6F7F9e0C1885d");
const { data, loading, error } = useUserMeritRewards({  user: evmAddress("0x742d35cc6e5c4ce3b69a2a8c7c8e5f7e9a0b1234"),  chainId: chainId(1),  filter: {    tokens: [sGHO_ADDRESS],  },});
if (loading) {  return <p>Loading claimable rewards...</p>;}
if (error) {  return <p>Error: {error.message}</p>;}
// data: UserMeritRewards | null

If data is null, the user has no sGHO claimable rewards.

2. Claim Rewards

Finally, if the user has claimable rewards, they can claim them by sending the transaction.

• React

• TypeScript

• GraphQL

Use the useSendTransaction hook for the wallet library of your choice to send the transactions in the execution plan.

Viem

import { useWalletClient } from "wagmi";import { useUserMeritRewards } from "@aave/react";import { useSendTransaction } from "@aave/react/viem";
// …
const { data: walletClient } = useWalletClient();const { data } = useUserMeritRewards({  // …  suspense: true,});
const [sendTransaction, sending] = useSendTransaction(walletClient);
// …
const execute = async () => {  if (data !== null) {    const result = await sendTransaction(data.transaction);
    if (result.isErr()) {      console.error(result.error.message);    } else {      console.log("sGHO claim rewards successful with hash:", result.value);    }  }};

For more details, see the GHO Savings Upgrade forum post.