What’s the best approach to handle errors in Node.js applications?Dec 17, 2024

I’ve built an API in Node.js, but it crashes unexpectedly when errors occur. How do I manage errors properly?

Node.js
Answers (1)
Harun KaranjaDec 17, 2024

Follow these best practices for error handling in Node.js:

  • Use Try-Catch: Wrap synchronous code in try-catch blocks.
  • Promise and Async/Await Errors: Use .catch() for promises and try-catch for async/await.
  • Global Error Handling: Use an error-handling middleware for Express apps.
  • Process-Level Errors: Handle uncaughtException and unhandledRejection.
  • Logging: Use tools like Winston or Bunyan for structured error logging.

Example for Express:

app.use((err, req, res, next) => {
 console.error(err.stack);
 res.status(500).json({ message: 'Something went wrong!' });
});

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