Custom Data Feed — Oracle Forge

Contract Details

Categorycontracts

Files14

Price$12.99

Tech Stack

Solidity ^0.8.24 TypeScript OpenZeppelin v5 Foundry

Chains

Ethereum Arbitrum Base Optimism

Description

Build your own on-chain data feed: API source to on-chain value with configurable update scheduling, deviation thresholds, and heartbeat intervals. Solidity consumer contract plus TypeScript updater service with gas optimization and multi-source validation.

Features

✓ Solidity data feed contract with owner controls
✓ Configurable heartbeat interval
✓ Deviation threshold triggers
✓ TypeScript updater service
✓ Multi-source API aggregation
✓ Gas price aware update scheduling
✓ Historical value storage (configurable depth)
✓ Access control for authorized updaters
✓ Foundry test suite with fuzz tests
✓ Deploy scripts for multiple chains

custom-data-feed.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

/// @title Custom Data Feed
/// @notice API-to-on-chain data feed with scheduling and deviation triggers.
contract CustomDataFeed {
    address public immutable owner;
    uint256 public constant VERSION = 1;

    event Initialized(address indexed deployer);

    constructor() {
        owner = msg.sender;
        emit Initialized(msg.sender);
    }

    // ... full implementation in purchased package
}