Axios Development Tutorials, Guides & Insights

By the end of this tutorial, you will be able to retrieve blockchain information such as transaction history and token balances through simple API calls.

Before you begin, you’ll need the following:

Now, modify app.py to enable CORS:

from flask_cors import CORS

app = Flask(__name__)
CORS(app)

Custom headers can be set in Axios requests, which is useful when working with APIs that require authentication tokens or specific content types.

axios.get('https://jsonplaceholder.typicode.com/posts/1', {
    headers: {
      'Authorization': 'Bearer YOUR_TOKEN_HERE'
    }
  })
  .then(response => {
    console.log('Post data:', response.data);
  })
  .catch(error => {
    console.error('Error fetching data:', error);
  });

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import React from 'react';

const Header = () => {
  return (
    <header className="bg-blue-500 text-white p-4">
      <h1 className="text-2xl">Welcome to My React App</h1>
    </header>
  );
}

export default Header;

Next, import and use this component in your App.jsx file: