如何使用？

使用curl、Web3.js、ethers、NodeJS、Java、Go、Python请求以太坊网络

curl

SolarPath 支持 HTTP 访问以太坊网络，以下示例使用 curl 来与以太坊进行交互:

curl https://eth-mainnet.solarpath.io/v1/YOUR-API-KEY \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc": "2.0", "id": 1, "method": "eth_blockNumber", "params": []}'

Web3.js

var Web3 = require('web3');
var url = 'https://eth-mainnet.solarpath.io/v1/YOUR-API-KEY';
var httpProvider = new Web3.providers.HttpProvider(url);
var web3 = new Web3(httpProvider);
web3.eth.getBlockNumber().then((result) => {
    console.log("Latest ETH block: " + result);
});

Ethers

var ethers = require('ethers');
var url = 'https://eth-mainnet.solarpath.io/v1/YOUR-API-KEY';
var etherProvider = new ethers.providers.JsonRpcProvider(url);
etherProvider.getBlockNumber().then((result) => {
    console.log("Latest ETH block: " + result);
});

Node JS

const https = require('https');
const myKey = 'YOUR-API-KEY';
const data = JSON.stringify({
    "jsonrpc":"2.0","method":"eth_blockNumber","params": [],"id":1
  });
  
const options = {
    host: 'eth-mainnet.solarpath.io',
    port: 443,
    path: '/v1/' + myKey,
    method: 'POST',
    headers: {'Content-Type': 'application/json'}
};

const req = https.request(options, res => {
    console.log(`status code: ${res.statusCode}`);

    res.on('data', d => {
        process.stdout.write(d);
    });
  });

  req.on('error', error => {
        console.error(error);
  });

  req.write(data);
  req.end();

Java

导入 web3j 依赖项，参阅: https://github.com/web3j/web3j

Web3j web3j = 
        Web3j.build(new HttpService("https://eth-mainnet.solarpath.io/v1/YOUR-API-KEY"));

EthBlock ethBlock = 
                web3j.ethGetBlockByNumber(DefaultBlockParameterName.LATEST, false)
                .send();

System.out.println("Latest ETH block: " + ethBlock.getBlock().getNumber());

通常建议将 Web3j 的实例对象使用static final进行修饰，在您的服务停止时，调用: web3j.shutdown();

Go

1. 初始化一个新的 go 模块: go mod init solarpath

2. 安装 go-ethereum 的依赖项，go get github.com/ethereum/go-ethereum/rpc

package main

import (
    "fmt"
    "log"

    "github.com/ethereum/go-ethereum/rpc"
)

type Block struct {
    Number string
}

func main() {
    client, err := rpc.Dial("https://eth-mainnet.solarpath.io/v1/YOUR-API-KEY")
    if err != nil {
        log.Fatalf("Could not connect to SolarPath: %v", err)
    }

    var lastBlock Block
    err = client.Call(&lastBlock, "eth_getBlockByNumber", "latest", true)
    if err != nil {
        fmt.Println("Cannot get the ETH latest block:", err)
        return
    }

    fmt.Printf("Latest ETH block: %v\n", lastBlock.Number)
}

Python

from web3 import Web3, HTTPProvider
web3Provider = Web3(HTTPProvider('https://eth-mainnet.solarpath.io/v1/YOUR-API-KEY'))
print ("Latest ETH block ", web3Provider.eth.blockNumber)