Wrap HBAR for WHBAR

Contract ID: WhbarHelper

Ensure that the WHBAR token ID is associated with the account prior to calling the deposit function. Failure to do so will result in a TOKEN_NOT_ASSOCIATED_TO_ACCOUNT error.

Function name: deposit

function deposit() public payable {
  IWHBAR(whbarContract).deposit{value: msg.value}(msg.sender, msg.sender);
}

Code overview

Recommended gas limit: 100,000

JavaScript SDK

Resources:

SaucerSwap deployed contract IDs
Hedera JavaScript SDK
Associate tokens to an account
Calling a smart contract function

import {
  ContractExecuteTransaction,
  TokenAssociateTransaction,
  Hbar,
  HbarUnit
} from '@hashgraph/sdk';

//Client pre-checks:
// - WHBAR token is associated

const depositHbar = Hbar.from(depositAmount, HbarUnit.Hbar)

await new ContractExecuteTransaction()
 .setContractId(whbarHelperContractId)
 .setPayableAmount(depositHbar)
 .setGas(gasLim)
 .setFunction('deposit')
 .execute(client);

Next steps

Unwrap WHBAR for HBAR

Withdraw WHBAR back to native HBAR.

WHBAR overview

How WHBAR works and its security advisory.

WHBAR overview Unwrap WHBAR for HBAR

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Unwrap WHBAR for HBAR

WHBAR overview

​Code overview

​Next steps

Unwrap WHBAR for HBAR

WHBAR overview

Code overview

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