​
Configuring Yield Modes

Users can change the yield mode of their WETH and USDC accounts by calling the configure function on the relevant token address.

enum YieldMode {
  AUTOMATIC,
  VOID,
  CLAIMABLE
}

interface IERC20Rebasing {
  function configure(YieldMode) external returns (uint256);
  function claim(address recipient, uint256 amount) external returns (uint256);
  function getClaimableAmount(address account) external view returns (uint256);
}

contract MyContract {
  IERC20Rebasing public constant USDC = IERC20Rebasing(`usdc_contract_address`);
  IERC20Rebasing public constant WETH = IERC20Rebasing(`weth_contract_address`);

  constructor() {
    USDC.configure(YieldMode.CLAIMABLE); // Configure claimable yield for USDC
    WETH.configure(YieldMode.CLAIMABLE); // Configure claimable yield for WETH
  }
}

​
Non-Rebasing Tokens

For applications seeking stable yield exposure, non-rebasing nrETH and nrUSDC tokens wrap ETH/WETH and USDC at their current value, allowing later unwrapping to redeem their rebased value.

interface INrETH {
  receive() external payable;
  function wrap(uint256 _amount) external returns (uint256);
  function unwrap(uint256 _shares) external returns (uint256);
}

interface INrUSDC {
  function wrap(uint256 _amount) external returns (uint256);
  function unwrap(uint256 _shares) external returns (uint256);
}

​
Claiming WETH

To convert ETH to WETH on the RWALayer Sepolia Testnet, send ETH to the WETH contract address on L2. Ensure not to send funds to this address on the Sepolia L1.

​
Claiming USDC

On Sepolia L1, use the mock USD token by calling the mint function to receive up to $10,000 mock USD per call.

cast send --rpc-url=https://rpc.sepolia.org \
  --private-key=$PRIV_KEY \
  $mockUSDAddress \
  "mint(address,uint256)" $ADDR 1000000000000000000000

Approve the L1 RWALayer Bridge contract to transfer your mock USD tokens:

cast send --rpc-url=https://rpc.sepolia.org \
  --private-key=$PRIV_KEY \
  $mockUSDAddress \
  "approve(address,uint256)" $L1Bridge 1000000000000000000000

Bridge the tokens to L2:

cast send --rpc-url=https://rpc.sepolia.org \
  --private-key=$PRIV_KEY --gas-limit 500000 \
  $L1Bridge \
  "bridgeERC20(address localToken,address remoteToken,uint256 amount,uint32,bytes)" \
  $localTokenAddress \
  $remoteTokenAddress \
  1000000000000000000000 500000 0x