React Course: Preparing for Project Deployment [Diary App]

Hello, everyone! In this course, we will take a detailed look at the preparation process for deploying a diary app created with React. Deploying a web application developed with React requires several steps beyond simply uploading files to the server. In this article, we will cover pre-deployment checks and optimization, basic deployment methods, and post-deployment management and maintenance.

1. Project Optimization

Before deploying, it’s important to optimize the application. Optimization helps improve user experience, reduce load times, and save server costs. Here are some points to consider during the optimization process.

1.1. Code Splitting

In React, you can reduce initial load times through code splitting. Code splitting allows you to divide different parts of the application into separate chunks and load them only when needed. This provides faster responsiveness when users are using the application. You can use React.lazy and Suspense for this.


    // Example code
    const LazyComponent = React.lazy(() => import('./LazyComponent'));

    function App() {
        return (
            Loading...
}> ); }

1.2. Creating a Production Build

Running the application in development mode can degrade performance due to various development tools being activated. Therefore, you need to create a build in production mode. To generate a production build for a React app, use the following command.

npm run build

Executing this command will generate optimized files in the build folder.

2. Introduction to Deployment Methods

Now, let’s look at the deployment methods. There are various deployment platforms, but here we will introduce two representative methods: GitHub Pages and Netlify.

2.1. GitHub Pages

GitHub Pages is a free service for hosting static websites. The process for deploying a React application to GitHub Pages is as follows.

  1. Create a GitHub Repository: Create a new repository on GitHub.
  2. Install npm gh-pages: Install the gh-pages package for deployment to GitHub Pages.
    3. npm install --save gh-pages
  3. Edit package.json: Add the homepage property to the package.json file.
    4. 
        {
            "homepage": "https://username.github.io/repository-name"
        }
  4. Add Deployment Script: Add a deployment script to the scripts section of package.json.
    5. 
        "scripts": {
            "predeploy": "npm run build",
            "deploy": "gh-pages -d build"
        }
  5. Execute Deployment: Run the following command to deploy the application.
    6. npm run deploy

Now, you can access the deployed application via the {homepage} URL in your browser.

2.2. Netlify

Netlify is a very popular platform for hosting static websites. Here’s how to deploy a React application to Netlify.

  1. Create a Netlify Account: Visit the Netlify website to create a free account.
  2. Create New Site: Click the New site from Git button to connect to your GitHub repository.
  3. Build Settings: Set the build command to npm run build and specify the deployment directory as build.
  4. Deploy Site: Click the Deploy site button to start the deployment.

Once the deployment is complete, you can access the application using the URL provided by Netlify.

3. Post-Deployment Management and Maintenance

After deployment, it is important to check whether the application is functioning reliably. Here are some aspects to manage post-deployment.

3.1. Error Monitoring

It’s a good idea to use error tracking tools to monitor potential errors in the deployed application. Tools like Sentry allow you to track errors in real-time and resolve issues.

3.2. Performance Monitoring

Use tools like Google Analytics to monitor the performance of your application. This helps you understand user traffic and behavior, and collect data needed for product improvement.

3.3. Collecting User Feedback

After deploying the application, it’s important to collect feedback from users. Gather various insights from users about what they think of the application and use this information to improve the app.

4. Conclusion

Today, we examined the key steps in the preparation process for deploying a diary app made with React. We discussed code optimization, deployment methods, and post-deployment management and maintenance. I hope this article helps you with your React app deployment. Don’t forget to continuously improve and manage the application after deployment!

5. Additional Resources

Here are some additional resources related to React and application deployment: