How can I improve the performance of my Node.js app using async programming?

How can I improve the performance of my Node.js app using async programming?

You can enhance performance by using asynchronous functions, Promises, and async/await to handle I/O operations efficiently.

What are some common pitfalls to avoid when using async programming in Node.js?

Common pitfalls include callback hell, not handling errors properly, and blocking the event loop with synchronous code.

Can you give me an example of using async/await in a Node.js application?

Sure! Here's a simple example:

async function fetchData() {
  try {
    const response = await fetch('https://api.example.com/data');
    const data = await response.json();
    console.log(data);
  } catch (error) {
    console.error('Error fetching data:', error);
  }
}

This function fetches data asynchronously and handles errors gracefully.

How does async programming affect the scalability of my application?

Async programming allows your application to handle more requests concurrently, improving scalability by utilizing resources more efficiently.