🌎🚀 Error Handling in Web Application

🌎 In a globalized web app, error handling is a critical aspect of providing a smooth user experience. When an error occurs, it's essential to provide the user with meaningful feedback and quickly resolve the issue to minimize any impact on their experience.

🔍 Source maps:

Assuming that you are using webpack to bundle your React application, you can enable source maps by adding the following configuration to your webpack config file:

module.exports = {
  // ...other configurations
  devtool: 'source-map',
}

This will generate source maps for your compiled code, which can be used to identify and debug errors in the production environment.

👀 Live monitors:

One of the popular live monitoring tools for React applications is Sentry. You can integrate Sentry in your React application by installing the npm library and it supports the integrations with other platforms(slack, mail, etc) to notify the developer's in real-time.

import * as Sentry from '@sentry/react';
import { Integrations } from '@sentry/tracing';

Sentry.init({
  dsn: 'your-Sentry-DSN',
  integrations: [
    new Integrations.BrowserTracing(),
  ],
  tracesSampleRate: 1.0,
});

🚧 Error boundaries:

Assuming that you have a component that is prone to error, you can wrap it in an error boundary component as follows:

class MyErrorBoundary extends React.Component {
  constructor(props) {
    super(props);
    this.state = { hasError: false };
  }

  static getDerivedStateFromError(error) {
    return { hasError: true };
  }

  componentDidCatch(error, errorInfo) {
    console.error(error, errorInfo);
   // raise sentry here
  }

  render() {
    if (this.state.hasError) {
      return <h1>💥 Something went wrong.</h1>;
    }

    return this.props.children;
  }
}

class MyComponent extends React.Component {
  // ...component code that may throw an error

  render() {
    return (
      <MyErrorBoundary>
        {/* component that may throw an error */}
      </MyErrorBoundary>
    );
  }
}

By implementing best practices such as source maps, live monitors, error boundaries, and user-friendly error messages, developers can ensure that their application works flawlessly in the production environment. This not only helps in retaining users but also improves the reputation of the application in the global market.