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August 7, 2023

How to Resolve an ENS Name

Outline of the Article

Introduction to ENS (Ethereum Name Service) domain names
  1. Importance of resolving an ENS domain name
  2. Overview of the tools required to work with Chainbase API
  3. Setting up a free account at Chainbase
  4. Writing a script using Chainbase API
  5. Printing the resolved address
  6. Explanation of Chainbase API's getENSRecords function
  7. Conclusion
  8. FAQs

The Ethereum Name Service (ENS) provides a decentralized identity system built on the Ethereum blockchain. It allows users to register unique domain names that can be used as identifiers for Ethereum addresses. Resolving an ENS domain name involves translating it into the corresponding Ethereum address. This process is crucial as it simplifies the sending and receiving of cryptocurrency payments. In this article, we will explore the steps to resolve an ENS domain name using Chainbase API.

1. Introduction to ENS Domain Names

Before diving into the resolution process, let's understand what ENS domain names are. ENS domain names are unique identifiers that users can register to associate with their Ethereum addresses. These domain names function similarly to traditional website domain names, providing a human-readable representation of complex Ethereum addresses. For example, instead of using a lengthy address like "0x29ecfa2bee3538bb45d5017141a2e36208f1c082," you can have a user-friendly ENS domain name like "paradigm.eth."

2. Importance of Resolving an ENS Domain Name

Resolving an ENS domain name is essential for seamless transactions in the Ethereum ecosystem. When you want to send cryptocurrency payments to someone, resolving their ENS domain name allows you to conveniently enter their familiar name instead of dealing with the intricacies of their Ethereum address. Similarly, when someone wants to send you token, providing them with your ENS domain name simplifies the process and reduces the chances of errors. Resolving an ENS domain name essentially bridges the gap between the user-friendly naming system and the underlying Ethereum addresses.

3. Overview of the Tools Required

To work with Chainbase API and resolve ENS domain names, you'll need a few tools:

  • A free account at Chainbase: Register for a free account at Chainbase to access our APIs and data cloud.
  • An IDE (Integrated Development Environment): For the examples in this article, we'll be using JavaScript, and you can use an IDE like Visual Studio Code (VS Code).
  • An ENS domain name: You'll need an ENS domain name that you want to resolve.

4. Setting up a Free Account at Chainbase

To make the most of Chainbase's capabilities, create a free account by visiting our website. Once you've signed up and logged in, explore the dashboard to familiarize yourself with the features. Create a new project in the console, and you'll obtain an API key required for making requests to the Chainbase API.

5. Writing a Script using Chainbase API

Now that you have a Chainbase account and an API key, it's time to write a script to resolve an ENS domain name. In this article, we'll cover two examples using different JavaScript libraries: fetch and axios.

Example using fetch in JavaScript

Here's an example script that uses the fetch function in JavaScript to interact with the Chainbase API:

network_id = '1'; // See <https://docs.chainbase.com/reference/supported-chains> to get the id of different chains.
domain = 'paradigm.eth'; // Take paradigm.eth as an example.

fetch(`https://api.chainbase.online/v1/ens/records?chain_id=${network_id}&domain=${domain}`, {
    method: 'GET',
    headers: {
        'x-api-key': CHAINBASE_API_KEY, // Replace the field with your API key.
        'accept': 'application/json'
    }
})
.then(response => response.json())
.then(data => console.log(data.data))
.catch(error => console.error(error));

Ensure you replace CHAINBASE_API_KEY with your actual API key obtained from the Chainbase dashboard. Running this script will make a GET request to the Chainbase API, providing the network ID and the ENS domain name to resolve. The resolved address will be logged to the console.

Example using axios in JavaScript

If you prefer using the axios library in JavaScript, you can modify the script as follows，You need to install axios using npm install axios --save in the terminal first.

network_id = '1'; // See <https://docs.chainbase.com/reference/supported-chains> to get the id of different chains.
domain = 'paradigm.eth'; // Take paradigm.eth as an example.

const axios = require('axios');
const options = {
    url: `https://api.chainbase.online/v1/ens/records?chain_id=${network_id}&domain=${domain}`,
    method: 'GET',
    headers: {
        'x-api-key': CHAINBASE_API_KEY, // Replace the field with your API key.
        'accept': 'application/json'
    }
};
axios(options)
    .then(response => console.log(response.data.data))
    .catch(error => console.log(error));

Remember to replace CHAINBASE_API_KEY with your actual API key. This script uses axios to make a similar GET request to the Chainbase API and logs the resolved address to the console.

6. Printing the Resolved Address

Once you have written the script and provided the necessary inputs, it's time to execute it and print the resolved address. Open your preferred terminal or command prompt, navigate to the directory containing the script, and run the following command:

node <filename>.js

Replace <filename> with the name you've chosen for your script file. Running the script will trigger the API request to Chainbase, and upon successful resolution, the resolved address associated with the provided ENS domain name will be displayed in the terminal.

{
  "name": "paradigm",
  "address": "0x29ecfa2bee3538bb45d5017141a2e36208f1c082",
  "registrant": "0x29ecfa2bee3538bb45d5017141a2e36208f1c082",
  "owner": "0x29ecfA2BEe3538bB45D5017141a2e36208f1C082",
  "resolver": "0x4976fb03c32e5b8cfe2b6ccb31c09ba78ebaba41",
  "registrant_time": "2020-08-30T00:21:53Z",
  "expiration_time": "2021-08-30T06:11:05Z",
  "token_id": "25678324544658514891171433701500781853442152332474238876092807294041322428124",
  "text_records": {
    "avatar": "<https://sushi.com/static/media/logo.dec926df.png>",
    "com.github": "andrecronje",
    "com.twitter": "a16z",
    "description": "Skate on the Paradigm and shift it when I feel like",
    "email": "careers@mcdonalds.com",
    "eth.ens.delegate": "<https://discuss.ens.domains/t/ens-dao-delegate-applications/815/1045>",
    "url": "<https://www.forbes.com/sites/stevenehrlich/2021/10/06/the-richest-under-30-in-the-world-all-thanks-to-crypto>"
  }
}

7. Explanation of Chainbase API's getENSRecords Function

The getENSRecords function of the our API takes the chain ID and an ENS domain name as parameters. It then retrieves the relevant information associated with the provided ENS domain name. The returned data includes the name, address, registrant, owner, resolver, registrant time, expiration time, token ID, and any text records associated with the domain.

8**. Conclusion**

Resolving an ENS domain name plays a crucial role in simplifying transactions in the Ethereum ecosystem. By using tools like our Chainbase API, developers can easily retrieve the corresponding Ethereum address for a given ENS domain name. This allows users to send and receive cryptocurrency payments using user-friendly names instead of complex addresses. With the step-by-step guide provided in this article, you now have the knowledge to resolve ENS domain names using Chainbase API.

9. FAQs

Q1. Can I resolve any ENS domain name using Chainbase API?

Yes, you can resolve any ENS domain name by making the appropriate request toour Chainbase API. Ensure you have a registered ENS domain name and the necessary API key.

Q2. Are there any limitations to the number of ENS domain names I can resolve using Chainbase API?

Chainbase API allows you to resolve multiple ENS domain names based on your account limitations. Refer to our documentation for any restrictions on the number of requests you can make.

Q3. Can I use Chainbase API with languages other than JavaScript?

Yes, while the examples in this article use JavaScript, Chainbase API can be used with various programming languages that support HTTP requests. You can choose any language that you are comfortable with and make the appropriate API calls.

Q4. What other functionalities does Chainbase API offer?

Chainbase API provides a range of functionalities beyond ENS domain name resolution. We offers various endpoints to interact with blockchain data, including retrieving account balances, transaction details, and more. Explore our documentation for a comprehensive list of available APIs.

Q5. Can I integrate Chainbase API into my own application?

Absolutely! Our Chainbase API is designed to be integrated into applications, websites, and services. You can leverage its capabilities to enhance your Ethereum-related projects and provide seamless experiences for your users.

About Chainbase

Chainbase is an all-in-one data infrastructure for Web3 that allows you to index, transform, and use on-chain data at scale. By leveraging enriched on-chain data and streaming computing technologies across one data infrastructure, Chainbase automates the indexing and querying of blockchain data, enabling developers to accomplish more with less effort.

Want to learn more about Chainbase?

Visit our website chainbase.com Sign up for a free account, and Check out our documentation.

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The Original Link:https://chainbase.com/blog/article/how-to-reverse-resolve-an-ens-name

@chainbaseintern
August 7, 2023, 06:51
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