How do I implement CSRF protection in my React app?

How do I implement CSRF protection in my React app?

To implement CSRF protection in your React app, you can use the csurf middleware on the server side and include the CSRF token in your requests.

Can you show me how to set up the csurf middleware?

Sure! First, install csurf using npm. Then, set it up in your Express server like this:

const csurf = require('csurf');
const csrfProtection = csurf();
app.use(csrfProtection);

How do I send the CSRF token from the client side?

You can fetch the CSRF token from your server and include it in the headers of your requests. For example:

fetch('/api/endpoint', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'CSRF-Token': csrfToken
  },
  body: JSON.stringify(data)
});

What if I'm using Axios instead of fetch?

If you're using Axios, you can set the CSRF token in the headers like this:

axios.post('/api/endpoint', data, {
  headers: {
    'CSRF-Token': csrfToken
  }
});