How do I handle errors in Node.js when connecting to a database?

How do I handle errors in Node.js when connecting to a database?

You can use try-catch blocks for synchronous code and handle errors in callbacks or promises for asynchronous code.

Can you give me an example of using promises for error handling?

Sure! When using promises, you can use the .catch() method to handle errors. For example:

connectToDatabase()
  .then(result => {
    // handle successful connection
  })
  .catch(error => {
    console.error('Database connection error:', error);
  });

What about using async/await for error handling?

With async/await, you can use try-catch like this:

async function connect() {
  try {
    const result = await connectToDatabase();
    // handle successful connection
  } catch (error) {
    console.error('Database connection error:', error);
  }
}

Are there any best practices for error handling in Node.js?

Yes, some best practices include logging errors, providing user-friendly messages, and not exposing sensitive information.