Developer Portal

import { ethers } from 'ethers'
;

// Connect to CryptoVault EVM mainnet
const provider = new ethers.JsonRpcProvider(
  'https://rpc.cryptovault-evm.io'
);

// Get network information
const network = await provider.getNetwork();
console.log('Connected to:', network.name);
console.log('Chain ID:', network.chainId);

// Get latest block
const blockNumber = await provider.getBlockNumber();
console.log('Latest block:', blockNumber);

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

contract SimpleStorage {
    uint256 private storedData;
    
    event DataStored(uint256 data);
    
    function set(uint256 x) public {
        storedData = x;
        emit DataStored(x);
    }
    
    function get() public view returns (uint256) {
        return storedData;
    }
}

// Contract ABI and address
const contractABI = [...];
const contractAddress = '0x...';

// Create contract instance
const contract = new ethers.Contract(
  contractAddress,
  contractABI,
  provider
);

// Read from contract
const value = await contract.get();
console.log('Stored value:', value);

// Write to contract (requires signer)
const signer = await provider.getSigner();
const contractWithSigner = contract.connect(signer);
const tx = await contractWithSigner.set(42);
await tx.wait();
console.log('Transaction confirmed!');