I am new to your chain. What is a new item you want to see?

[CryptoHighway84]

Good Day,

I am interested in experimenting with this chain, and make a demo build, to see what I can come up with for the weekend. Are there any projects, needs, or developments, apps you would want to see in this community. As I learn more, I will get a feel for the system, I am excited to learn more!

-Jade

[mattOAK]

Welcome! Here are some examples of use cases that we're excited to see built using OAK:

• Scheduled and recurring payments
• Dollar-cost averaging
• Wallet balance top-ups
  More details on these examples are available on the OAK documentation page:
  https://docs.oak.tech/docs/examples/

[CryptoHighway84]

//Here we have a smart contract that can help with waller top-ups
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract WalletBalanceTopUp {
address payable private walletAddress; // the wallet address to top-up
uint256 private topUpAmount; // the amount to top-up
uint256 private topUpInterval; // the interval between top-ups
uint256 private lastTopUpTime; // the timestamp of the last top-up

constructor(address payable _walletAddress, uint256 _topUpAmount, uint256 _topUpInterval) {
    walletAddress = _walletAddress;
    topUpAmount = _topUpAmount;
    topUpInterval = _topUpInterval;
    lastTopUpTime = block.timestamp;  // initialize the last top-up time to contract deployment time
}

function topUpWallet() public payable {
    require(msg.sender == address(this), "Only the contract can call this function");
    require(block.timestamp >= lastTopUpTime + topUpInterval, "Top-up interval not elapsed yet");
    require(address(this).balance >= topUpAmount, "Insufficient contract balance for top-up");
    
    // transfer top-up amount to wallet address
    (bool success,) = walletAddress.call{value: topUpAmount}("");
    require(success, "Failed to transfer top-up amount to wallet");
    
    // update last top-up time
    lastTopUpTime = block.timestamp;
}

}

[yhl1998]

您的邮件已收到，我会尽快查收，谢谢。 ——杨贺淋