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Axios Development Tutorials, Guides & Insights

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Understanding and Using the Etherscan API to Query Blockchain Data

Tutorial October 24, 2024

You can also query ERC-20 token balances for a given address using the Etherscan API.

const axios = require('axios');

// Replace this with your actual Etherscan API key
const apiKey = 'YOUR_ETHERSCAN_API_KEY';

// Replace this with the Ethereum address you want to query
const address = '0xYourEthereumAddress';

// Replace this with the contract address of the ERC-20 token
const contractAddress = '0xYourTokenContractAddress';

// Etherscan API URL to fetch the ERC-20 token balance
const url = `https://api.etherscan.io/api?module=account&action=tokenbalance&contractaddress=${contractAddress}&address=${address}&tag=latest&apikey=${apiKey}`;

async function getTokenBalance() {
  try {
    // Make the API request to Etherscan
    const response = await axios.get(url);
    const tokenBalance = response.data.result;

    // Log the token balance (Note: Token balances are often in very small denominations)
    console.log(`Token Balance: ${tokenBalance}`);
  } catch (error) {
    console.error('Error fetching token balance:', error);
  }
}

// Call the function to get the token balance
getTokenBalance();

How to Build a Fullstack App with Flask and React

Tutorial September 30, 2024
javascript python

Visit http://127.0.0.1:5000/ in your browser. You should see:

{"message": "Welcome to the Task Manager API!"}

Getting Started with Axios in JavaScript

Tutorial September 02, 2024
javascript

If you're making multiple requests to the same base URL or with the same configuration, you can create an Axios instance.

const apiClient = axios.create({
  baseURL: 'https://jsonplaceholder.typicode.com',
  timeout: 1000,
  headers: { 'X-Custom-Header': 'foobar' }
});

apiClient.get('/posts/1')
  .then(response => {
    console.log('Post:', response.data);
  });

Comprehensive React Libraries Cheatsheet

Cheatsheet August 21, 2024

React's ecosystem is vast, with a multitude of libraries that enhance its functionality and simplify development tasks. This cheatsheet covers a wide array of React libraries, organized by category, with brief descriptions of each. These libraries can help you build robust, maintainable, and efficient React applications.

This cheatsheet offers a broad overview of the most widely-used libraries in the React ecosystem. These libraries cover various aspects of React development, from state management and UI components to testing and animations, helping you build robust and maintainable applications. Whether you're a beginner or an experienced developer, integrating these tools into your workflow can significantly enhance your productivity and the quality of your React projects.

Building a React Application with Vite and Tailwind CSS

Tutorial August 14, 2024
javascript nodejs

Install Tailwind CSS and its peer dependencies:

npm install -D tailwindcss postcss autoprefixer