eth_estimateGas

网络： Polygon Amoy · 测试网 · Chain ID 80002（0x13882）

计为 1 个 Request。 计费规则见 Request Counting。

生成并返回交易完成所需的 Gas 估算值。该调用不会将交易写入区块链。

参数

Object — 交易调用对象（同 eth_call）：

字段类型必填说明
from DATA 否发送方地址
to DATA 否接收方地址
gas QUANTITY 否 Gas 上限
gasPrice QUANTITY 否 Gas 单价
value QUANTITY 否 wei 金额
data DATA 否调用数据
QUANTITY|TAG —（可选）区块号，或 "latest"。

字段	类型	必填	说明
from	DATA	否	发送方地址
to	DATA	否	接收方地址
gas	QUANTITY	否	Gas 上限
gasPrice	QUANTITY	否	Gas 单价
value	QUANTITY	否	wei 金额
data	DATA	否	调用数据

QUANTITY — 预估 Gas 数量。

请求


{
  "jsonrpc": "2.0",
  "method": "eth_estimateGas",
  "params": [
    {
      "from": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
      "to": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
      "value": "0x0",
      "data": "0xa9059cbb0000000000000000000000001234567890abcdef1234567890abcdef1234567800000000000000000000000000000000000000000000000000000000000f4240"
    }
  ],
  "id": 1
}

响应


{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0xc350"
}

代码示例


curl -X POST https://polygon-amoy-bor-rpc.blockreq.com/v1/rpc/public \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_estimateGas","params":[{"from":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","to":"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48","value":"0x0","data":"0xa9059cbb0000000000000000000000001234567890abcdef1234567890abcdef1234567800000000000000000000000000000000000000000000000000000000000f4240"}],"id":1}'


const response = await fetch("https://polygon-amoy-bor-rpc.blockreq.com/v1/rpc/public", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
  "jsonrpc": "2.0",
  "method": "eth_estimateGas",
  "params": [
    {
      "from": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
      "to": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
      "value": "0x0",
      "data": "0xa9059cbb0000000000000000000000001234567890abcdef1234567890abcdef1234567800000000000000000000000000000000000000000000000000000000000f4240"
    }
  ],
  "id": 1
}),
});
const data = await response.json();
console.log(data.result);


import requests

response = requests.post(
    "https://polygon-amoy-bor-rpc.blockreq.com/v1/rpc/public",
    json={
  "jsonrpc": "2.0",
  "method": "eth_estimateGas",
  "params": [
    {
      "from": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
      "to": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
      "value": "0x0",
      "data": "0xa9059cbb0000000000000000000000001234567890abcdef1234567890abcdef1234567800000000000000000000000000000000000000000000000000000000000f4240"
    }
  ],
  "id": 1
}
)
print(response.json()["result"])


package main

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io"
	"net/http"
)

func main() {
	payload := []byte(`{"jsonrpc":"2.0","method":"eth_estimateGas","params":[{"from":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","to":"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48","value":"0x0","data":"0xa9059cbb0000000000000000000000001234567890abcdef1234567890abcdef1234567800000000000000000000000000000000000000000000000000000000000f4240"}],"id":1}`)
	resp, err := http.Post(
		"https://polygon-amoy-bor-rpc.blockreq.com/v1/rpc/public",
		"application/json",
		bytes.NewBuffer(payload),
	)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()

	body, _ := io.ReadAll(resp.Body)
	var result map[string]interface{}
	json.Unmarshal(body, &result)
	fmt.Println(result["result"])
}


import { createPublicClient, http } from "viem";

const client = createPublicClient({
  transport: http("https://polygon-amoy-bor-rpc.blockreq.com/v1/rpc/public"),
});

const result = await client.request({
  method: "eth_estimateGas",
  params: [{"from":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","to":"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48","value":"0x0","data":"0xa9059cbb0000000000000000000000001234567890abcdef1234567890abcdef1234567800000000000000000000000000000000000000000000000000000000000f4240"}],
});
console.log(result);


cast rpc --rpc-url https://polygon-amoy-bor-rpc.blockreq.com/v1/rpc/public eth_estimateGas {"from":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","to":"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48","value":"0x0","data":"0xa9059cbb0000000000000000000000001234567890abcdef1234567890abcdef1234567800000000000000000000000000000000000000000000000000000000000f4240"}


const { ethers } = require("hardhat");

async function main() {
  const provider = new ethers.JsonRpcProvider("https://polygon-amoy-bor-rpc.blockreq.com/v1/rpc/public");
  const result = await provider.send("eth_estimateGas", [{"from":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","to":"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48","value":"0x0","data":"0xa9059cbb0000000000000000000000001234567890abcdef1234567890abcdef1234567800000000000000000000000000000000000000000000000000000000000f4240"}]);
  console.log(result);
}

main();

eth_estimateGas

参数

返回

请求

响应

代码示例

在线试用