How can I handle errors in a React application using MSW?

How can I handle errors in a React application using MSW?

You can handle errors in a React app using MSW by defining error responses in your request handlers. This allows you to simulate server errors.

Can you show me an example of how to set that up?

Sure! You can create a handler like this: rest.get('/api/data', (req, res) => { return res.networkError('Failed to connect'); }); This simulates a network error.

What about handling validation errors?

For validation errors, you can return a 400 status code with a message. For example: return res(ctx.status(400), ctx.json({ error: 'Invalid input' }));.

How do I test these error scenarios in my components?

You can write tests that trigger these error responses and check how your components handle them, ensuring they display the correct error messages.