dag_getHeads RPC Method

参数

该方法不接受任何参数

退货

This method returns nothing

请求

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curl -X POST "https://docs-demo.fantom.quiknode.pro/" \
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  -H "Content-Type: application/json" \
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  -d '{
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  "jsonrpc": "2.0",
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  "method": "dag_getHeads",
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  "params": [],
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  "id": 1
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}'

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curl -X POST "https://docs-demo.fantom.quiknode.pro/" \
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  -H "Content-Type: application/json" \
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  -d '{
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  "jsonrpc": "2.0",
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  "method": "dag_getHeads",
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  "params": [],
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  "id": 1
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}'

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import { ethers } from "ethers";
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async 函数 main() {
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    const provider = new ethers.JsonRpcProvider(“https://docs-demo.fantom.quiknode.pro/”);
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    const response = await provider.send("dag_getHeads", []);
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    控制台.log(响应);
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}
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主();

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import { ethers } from "ethers";
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async 函数 main() {
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    const provider = new ethers.JsonRpcProvider(“https://docs-demo.fantom.quiknode.pro/”);
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    const response = await provider.send("dag_getHeads", []);
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    控制台.log(响应);
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}
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主();

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来源 web3 import Web3, HTTPProvider
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w3 = Web3(HTTPProvider('https://docs-demo.fantom.quiknode.pro/'))
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response = w3.provider.make_request("dag_getHeads", [])
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打印(响应)

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来源 web3 import Web3, HTTPProvider
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w3 = Web3(HTTPProvider('https://docs-demo.fantom.quiknode.pro/'))
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response = w3.provider.make_request("dag_getHeads", [])
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打印(响应)

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import { createPublicClient, http } 来自 'viem'
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async 函数 main() {
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    const 客户端 = createPublicClient({
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        运输: http(“https://docs-demo.fantom.quiknode.pro/”)
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    })
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    const 结果 = await client.request({
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        method: 'dag_getHeads',
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        参数: []
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    })
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    控制台.log(结果)
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}
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主()

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import { createPublicClient, http } 来自 'viem'
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async 函数 main() {
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    const 客户端 = createPublicClient({
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        运输: http(“https://docs-demo.fantom.quiknode.pro/”)
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    })
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    const 结果 = await client.request({
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        method: 'dag_getHeads',
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        参数: []
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    })
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    控制台.log(结果)
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}
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主()

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import { 核心 } from '@quicknode/sdk'
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const 核心 = new Core({
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  endpointUrl: "https://docs-demo.fantom.quiknode.pro/",
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})
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核心.客户端
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  .请求({
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    method: 'dag_getHeads',
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    参数: []
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  })
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  .然后(res => 控制台.log(res))

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import { 核心 } from '@quicknode/sdk'
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const 核心 = new Core({
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  endpointUrl: "https://docs-demo.fantom.quiknode.pro/",
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})
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核心.客户端
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  .请求({
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    method: 'dag_getHeads',
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    参数: []
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  })
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  .然后(res => 控制台.log(res))

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const body = {
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    jsonrpc: '2.0',
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    method: 'dag_getHeads',
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    参数: [],
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    id: 1
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}
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async 函数 main() {
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    const response = await fetch('https://docs-demo.fantom.quiknode.pro/', {
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        方法: 'POST',
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        headers: {'Content-Type': 'application/json'},
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        正文: JSON.stringify(body)
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    })
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    const data = await response.json()
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    控制台.log(数据)
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}
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主()

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const body = {
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    jsonrpc: '2.0',
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    method: 'dag_getHeads',
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    参数: [],
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    id: 1
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}
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async 函数 main() {
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    const response = await fetch('https://docs-demo.fantom.quiknode.pro/', {
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        方法: 'POST',
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        headers: {'Content-Type': 'application/json'},
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        正文: JSON.stringify(body)
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    })
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    const data = await response.json()
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    控制台.log(数据)
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}
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主()

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导入 请求
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import json
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url = "https://docs-demo.fantom.quiknode.pro/"
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有效载荷 = json.dumps({
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  “jsonrpc”: "2.0",
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  "method": "dag_getHeads",
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  “params”: [],
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  "id": 1
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})
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标题 = {
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  “Content-Type”: 'application/json'
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}
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回复 = 请求.请求("POST", url, headers=headers, data=有效载荷)
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打印(响应.text)

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导入 请求
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import json
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url = "https://docs-demo.fantom.quiknode.pro/"
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有效载荷 = json.dumps({
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  “jsonrpc”: "2.0",
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  "method": "dag_getHeads",
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  “params”: [],
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  "id": 1
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})
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标题 = {
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  “Content-Type”: 'application/json'
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}
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回复 = 请求.请求("POST", url, headers=headers, data=有效载荷)
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打印(响应.text)

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require "uri"
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require "json"
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require "net/http"
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uri = URI(“https://docs-demo.fantom.quiknode.pro/”)
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有效载荷 = {
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  jsonrpc: "2.0",
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  id: 1,
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  method: "dag_getHeads",
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  参数: []
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}
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请求 = Net::HTTP::POST.new(URI)
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请求["Content-Type"] = "application/json"
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请求.请求体 = JSON.生成(有效载荷)
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回复 = 净::HTTP.start(uri.主机, uri.端口, use_ssl: true) 执行 |http|
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  http.请求(请求)
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结束
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返回响应.正文

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require "uri"
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require "json"
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require "net/http"
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uri = URI(“https://docs-demo.fantom.quiknode.pro/”)
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有效载荷 = {
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  jsonrpc: "2.0",
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  id: 1,
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  method: "dag_getHeads",
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  参数: []
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}
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请求 = Net::HTTP::POST.new(URI)
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请求["Content-Type"] = "application/json"
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请求.请求体 = JSON.生成(有效载荷)
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回复 = 净::HTTP.start(uri.主机, uri.端口, use_ssl: true) 执行 |http|
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  http.请求(请求)
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结束
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返回响应.正文

回复

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{
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  “jsonrpc”: "2.0",
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  "id": 1,
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  “结果”: [
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    "0x0000000000000000000000000000000000000000000000000000000000000000"
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  ]
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}

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{
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  “jsonrpc”: "2.0",
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  "id": 1,
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  “结果”: [
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    "0x0000000000000000000000000000000000000000000000000000000000000000"
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  ]
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}

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