How to Use Axios in Node.js: Simple HTTP Requests Guide

To use axios in Node.js, first install it with npm install axios. Then, import it using import axios from 'axios' or const axios = require('axios') and call methods like axios.get() to make HTTP requests.

Syntax

The basic syntax to use axios involves importing the library and calling its HTTP methods like get, post, put, or delete. Each method returns a promise that resolves with the response.

• Import axios: Use import axios from 'axios' (ESM) or const axios = require('axios') (CommonJS).
• Make request: Call axios.get(url) or other methods with the URL and optional config.
• Handle response: Use await or .then() to get the response data.

javascript

import axios from 'axios';

async function fetchData() {
  try {
    const response = await axios.get('https://api.example.com/data');
    console.log(response.data);
  } catch (error) {
    console.error(error);
  }
}

Example

This example shows how to make a GET request to a public API using axios in Node.js. It prints the JSON response data or an error if the request fails.

javascript

import axios from 'axios';

async function getUser() {
  try {
    const response = await axios.get('https://jsonplaceholder.typicode.com/users/1');
    console.log('User name:', response.data.name);
  } catch (error) {
    console.error('Error fetching user:', error.message);
  }
}

getUser();

Output

User name: Leanne Graham

Common Pitfalls

Common mistakes when using axios in Node.js include:

• Not installing axios before importing it.
• Using require in ESM modules or import in CommonJS without proper setup.
• Forgetting to handle errors with try/catch or .catch().
• Not awaiting the promise, causing unexpected behavior.

javascript

/* Wrong: Missing await, no error handling */
import axios from 'axios';

function fetchData() {
  const response = axios.get('https://jsonplaceholder.typicode.com/posts/1');
  response.then(res => console.log(res.data)); // Correctly handle promise
}

fetchData();

/* Right: Await and try/catch */
async function fetchDataCorrect() {
  try {
    const response = await axios.get('https://jsonplaceholder.typicode.com/posts/1');
    console.log(response.data);
  } catch (error) {
    console.error(error);
  }
}

fetchDataCorrect();

Quick Reference

Here is a quick summary of common axios methods and usage tips:

Method	Description	Example
axios.get(url)	Fetch data from the URL	await axios.get('https://api.com')
axios.post(url, data)	Send data to the URL	await axios.post('https://api.com', {name: 'John'})
axios.put(url, data)	Update data at the URL	await axios.put('https://api.com/1', {name: 'Jane'})
axios.delete(url)	Delete resource at the URL	await axios.delete('https://api.com/1')
Error handling	Use try/catch or .catch()	try { await axios.get(url) } catch (e) { }

Key Takeaways

Install axios with npm before using it in Node.js.

Import axios properly depending on your module system (ESM or CommonJS).

Use async/await with try/catch to handle HTTP requests and errors cleanly.

Axios methods return promises that resolve with the response object.

Always handle errors to avoid unhandled promise rejections.