Nethereum

Terhubung ke 256 Blocks menggunakan Nethereum untuk aplikasi .NET

Nethereum adalah pustaka integrasi .NET untuk Ethereum, menyediakan implementasi lengkap untuk berinteraksi dengan node Ethereum, kontrak pintar, dan ekosistem yang lebih luas.

Instalasi

Instal Nethereum melalui NuGet:

dotnet add package Nethereum.Web3

Atau melalui Package Manager Console:

Install-Package Nethereum.Web3

Mulai Cepat

Terhubung ke 256 Blocks menggunakan header X-API-Key:

using Nethereum.Web3;
using Nethereum.JsonRpc.Client;
using System.Net.Http;
 
// Create HttpClient with API key header
var httpClient = new HttpClient();
httpClient.DefaultRequestHeaders.Add("X-API-Key", "your-api-key");
 
// Create RPC client with custom HttpClient
var rpcClient = new RpcClient(
    new Uri("https://rpc.256blocks.com/ethereum"),
    httpClient
);
 
// Create Web3 instance
var web3 = new Web3(rpcClient);
 
// Get the latest block number
var blockNumber = await web3.Eth.Blocks.GetBlockNumber.SendRequestAsync();
Console.WriteLine($"Latest Block: {blockNumber.Value}");

Membaca Saldo Akun

using Nethereum.Web3;
using Nethereum.JsonRpc.Client;
using System.Net.Http;
 
var httpClient = new HttpClient();
httpClient.DefaultRequestHeaders.Add("X-API-Key", "your-api-key");
 
var rpcClient = new RpcClient(
    new Uri("https://rpc.256blocks.com/ethereum"),
    httpClient
);
 
var web3 = new Web3(rpcClient);
 
// Get account balance
var address = "0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb";
var balance = await web3.Eth.GetBalance.SendRequestAsync(address);
var etherAmount = Web3.Convert.FromWei(balance.Value);
 
Console.WriteLine($"Balance: {etherAmount} ETH");

Membaca Data Kontrak

using Nethereum.Web3;
using Nethereum.JsonRpc.Client;
using Nethereum.ABI.FunctionEncoding.Attributes;
using Nethereum.Contracts;
using System.Numerics;
using System.Net.Http;
 
// ERC-20 balanceOf function
[Function("balanceOf", "uint256")]
public class BalanceOfFunction : FunctionMessage
{
    [Parameter("address", "account", 1)]
    public string Account { get; set; }
}
 
var httpClient = new HttpClient();
httpClient.DefaultRequestHeaders.Add("X-API-Key", "your-api-key");
 
var rpcClient = new RpcClient(
    new Uri("https://rpc.256blocks.com/ethereum"),
    httpClient
);
 
var web3 = new Web3(rpcClient);
 
// USDC contract on Ethereum
var contractAddress = "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48";
var contract = web3.Eth.GetContractHandler(contractAddress);
 
var balanceOfMessage = new BalanceOfFunction
{
    Account = "0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb"
};
 
var balance = await contract.QueryAsync<BalanceOfFunction, BigInteger>(balanceOfMessage);
Console.WriteLine($"USDC Balance: {balance}");

Dukungan Multi-Chain

Terhubung ke chain yang berbeda dengan mengubah endpoint:

// Ethereum Mainnet
var ethClient = new RpcClient(new Uri("https://rpc.256blocks.com/ethereum"), httpClient);
 
// Base
var baseClient = new RpcClient(new Uri("https://rpc.256blocks.com/base"), httpClient);
 
// Arbitrum
var arbClient = new RpcClient(new Uri("https://rpc.256blocks.com/arbitrum"), httpClient);
 
// Polygon
var polygonClient = new RpcClient(new Uri("https://rpc.256blocks.com/polygon"), httpClient);

Sumber Daya

Nethereum | 256 Blocks