Ethereum Name Service (ENS)

The Ethereum Name Service (ENS) is a distributed, open, and extensible naming system based on the Ethereum blockchain.

The ENS object on the ens package is a module that abstracts the interaction with the ENS registry.

package main

import (
    "github.com/cloudwalk/ethgo/ens"
)

func main() {
	ensMod, err := ens.NewENS(ens.WithAddress("https://mainnet.infura.io"))
	if err != nil {
		panic(err)
	}
}

It will default to 0x00000000000C2E074eC69A0dFb2997BA6C7d2e1e as the address for the ENS registry when connecting with one of the official Ethereum networks. However, this can be parametrized at creation time. This module also requires a JsonRPC connection to make the calls to the ENS registry contract.

Options#

• WithAddress: JsonRPC url of the endpoint to connect with.
• WithClient: JsonRPC object to make rpc calls. It takes preference over an address from WithAddress.
• WithResolver: Custom resolver address to use rather than the default one.

Resolve#

Resolve resolves an ENS name to its registered address.

ensMod.Resolve("umbracle.eth")

Input:

• name (string): ENS name to resolve.

Output:

• address (Address): Ethereum address that resolves to the input name.