How to Use GitHub Copilot to Code Your First App in 1 Hour

If you’re an indie hacker or a solo founder, you probably know that coding your first app can feel like climbing a mountain. It’s daunting, often frustrating, and there’s a ton of information to sift through. But what if I told you that with GitHub Copilot, you could build your first app in just one hour? In this guide, I’ll walk you through how to leverage this AI coding assistant effectively.

Prerequisites: What You Need Before Starting

Before diving in, make sure you have the following:

1. GitHub Account: You’ll need this to use Copilot.
2. Visual Studio Code (VS Code): Download and install it from here.
3. GitHub Copilot Subscription: Costs around $10/month. There's a free trial available for new users.
4. Basic Understanding of JavaScript: Familiarity with basic syntax will help you get the most out of Copilot.

Step 1: Install GitHub Copilot

1. Open VS Code.
2. Go to the Extensions view by clicking on the square icon in the sidebar.
3. Search for “GitHub Copilot” and install it.
4. Follow the prompts to authenticate with your GitHub account.

Step 2: Choose Your App Idea

Start simple. Here are a few ideas that can be coded within an hour:

• A to-do list app
• A simple calculator
• A weather app using a public API

For this guide, I’ll focus on a simple to-do list app.

Step 3: Set Up Your Project

1. Create a new folder for your project.

2. Open the terminal in VS Code and run:

   npm init -y
   

3. Install any necessary packages. For our to-do app, you might want to use React:

   npx create-react-app todo-app
   cd todo-app
   

Step 4: Start Coding with GitHub Copilot

Now comes the fun part. Start coding your app with the help of Copilot.

1. Open src/App.js.

2. Begin typing out your components. For example, start with a basic functional component:

   function App() {
       return (
           <div>
               <h1>My To-Do List</h1>
           </div>
       );
   }
   

3. As you type, Copilot will suggest code completions. Accept these suggestions by hitting the Tab key. For example, you could type const [todos, setTodos] = useState([]); and see Copilot suggest how to manage a list of to-dos.

Step 5: Build Out the Functionality

Continue building out the app. Here are some key functionalities to implement:

• Add a new to-do: Type function addTodo and let Copilot help.
• Delete a to-do: Type function deleteTodo and see what Copilot suggests.
• Display the list: Start typing a map function, and Copilot should help you iterate over your todos.

Step 6: Test Your App

Once you’ve added all the functionalities, run your app:

npm start

Check if everything works as expected. If you run into issues, use the debugging tools in VS Code or search for solutions online.

What Could Go Wrong

• Copilot Suggestions: Sometimes, Copilot’s suggestions may not make sense. Always review the code it generates.
• Dependencies: Ensure you install all necessary libraries. If you miss one, your app might break.

What’s Next?

Once you have your app running, consider the following next steps:

• Deploy Your App: Use platforms like Vercel or Netlify to host your app.
• Add More Features: Think about user authentication or data persistence with a database.
• Iterate Based on Feedback: Share your app with friends and gather feedback for improvements.

Conclusion: Start Here

Using GitHub Copilot can drastically reduce the time it takes to code your first app. Just remember, it’s a tool to assist you, not a substitute for understanding the code. Spend some time familiarizing yourself with the suggestions it makes, and you’ll be able to build something functional in just an hour.

If you’re ready to dive into coding, grab your GitHub Copilot subscription, and start building!