English | 中文
Golang client for the Etherscan.io API(and its families like BscScan), with nearly full implementation(accounts, transactions, tokens, contracts, blocks, stats), full network support(Mainnet, Ropsten, Kovan, Rinkby, Goerli, Tobalaba), and only depending on standard library.
go get github.com/nanmu42/etherscan-api
Create an API instance and off you go.
import (
"github.com/nanmu42/etherscan-api"
"fmt"
)
func main() {
// create a API client for specified ethereum net
// there are many pre-defined network in package
client := etherscan.New(etherscan.Mainnet, "[your API key]")
// or, if you are working with etherscan-family API like BscScan
//
// client := etherscan.NewCustomized(etherscan.Customization{
// Timeout: 15 * time.Second,
// Key: "You key here",
// BaseURL: "https://api.bscscan.com/api?",
// Verbose: false,
// })
// (optional) add hooks, e.g. for rate limit
client.BeforeRequest = func(module, action string, param map[string]interface{}) error {
// ...
}
client.AfterRequest = func(module, action string, param map[string]interface{}, outcome interface{}, requestErr error) {
// ...
}
// check account balance
balance, err := client.AccountBalance("0x281055afc982d96fab65b3a49cac8b878184cb16")
if err != nil {
panic(err)
}
// balance in wei, in *big.Int type
fmt.Println(balance.Int())
// check token balance
tokenBalance, err := client.TokenBalance("contractAddress", "holderAddress")
// check ERC20 transactions from/to a specified address
transfers, err := client.ERC20Transfers("contractAddress", "address", startBlock, endBlock, page, offset)
}
You may find full method list at GoDoc.
You may apply for an API key on etherscan.
The Etherscan Ethereum Developer APIs are provided as a community service and without warranty, so please just use what you need and no more. They support both GET/POST requests and a rate limit of 5 requests/sec (exceed and you will be blocked).
I am not from Etherscan and I just find their service really useful, so I implement this.
Use of this work is governed by an MIT License.
You may find a license copy in project root.
此处可能存在不合适展示的内容,页面不予展示。您可通过相关编辑功能自查并修改。
如您确认内容无涉及 不当用语 / 纯广告导流 / 暴力 / 低俗色情 / 侵权 / 盗版 / 虚假 / 无价值内容或违法国家有关法律法规的内容,可点击提交进行申诉,我们将尽快为您处理。