Data Indexer Template — Oracle Forge

Description

TheGraph subgraph templates for indexing common DeFi oracle events. Pre-built schemas and mapping handlers for Chainlink price feeds, oracle aggregators, VRF requests, and data feed updates. AssemblyScript handlers with multi-chain deployment configs.

Details

Category: indexing
Files: 14
Chains: Ethereum, Arbitrum, Base

AssemblyScript TheGraph GraphQL Ethereum Arbitrum Base

Chainlink price feed event indexing
Oracle aggregator update tracking
VRF request/fulfillment indexing
Custom data feed update history
GraphQL schema with entity relationships
Multi-chain deployment configurations
Example GraphQL queries
AssemblyScript mapping handlers
Historical price snapshot entities
Feed metadata registry entities

data-indexer-template.sol

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

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

/// @title Data Indexer Template
/// @notice TheGraph subgraph templates for DeFi oracle event indexing.
contract DataIndexerTemplate {
    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
}