How to Create a Simple App in 1 Hour Using Golang with AI Assistance

Creating an app can feel overwhelming, especially for indie hackers and solo founders. But what if I told you that you could build a simple app in just one hour using Golang and some AI assistance? This isn't just hype—it's a practical approach we've tested ourselves, and it works. In this guide, I'll walk you through the tools and steps needed to make it happen, all while keeping costs low and productivity high.

Prerequisites: What You Need Before Starting

1. Golang Installed: Make sure you have Golang (version 1.20 or later) installed. It’s free and available on all major platforms.
2. AI Coding Assistant: Sign up for one of the AI coding tools. Most have free tiers or trials.
3. Basic Code Editor: Use any text editor or IDE you prefer (VS Code is a solid choice).
4. Familiarity with Basic Golang Syntax: While you don’t need to be an expert, a basic understanding will help.

Step-by-Step Guide to Building Your App

Step 1: Define Your App Idea

Keep it simple. For this guide, let’s create a “To-Do List” app. This is straightforward but covers key functionalities like adding and removing tasks.

Step 2: Set Up Your Golang Project

1. Create a new directory for your project.

   mkdir todo-app
   cd todo-app
   go mod init todo-app
   

Step 3: Leverage AI Tools for Coding

Using an AI coding assistant can speed up your development. Here are some tools that can help:

| Tool Name | What It Does | Pricing | Best For | Limitations | Our Take | |--------------------|---------------------------------------|-----------------------------|-------------------------------|--------------------------------------------------|------------------------------------| | OpenAI Codex | Generates code snippets from prompts | Free tier + $20/mo pro | Quick code generation | Limited to text-based input; context sensitivity | We use this for rapid prototyping. | | GitHub Copilot | AI pair programmer for VS Code | $10/mo | In-editor code suggestions | May generate incorrect code; needs review | We find it helpful for boilerplate. | | Tabnine | AI code completion | Free tier + $12/mo pro | Autocompletion | Can be less accurate for complex code | Good for speeding up typing. | | Replit | Online IDE with AI suggestions | Free, $7/mo for pro | Collaborative coding | Limited features compared to desktop IDEs | Great for quick demos. | | Codeium | AI code assistant for multiple languages | Free | Multi-language support | Less refined than others; may lack Golang focus | We don’t use it often, but it’s free. |

Step 4: Write Your Code

With your AI tool activated, start coding. Here’s a basic structure for your To-Do app:

package main

import (
    "fmt"
    "net/http"
    "sync"
)

var tasks []string
var mu sync.Mutex

func main() {
    http.HandleFunc("/add", addTask)
    http.HandleFunc("/list", listTasks)
    http.ListenAndServe(":8080", nil)
}

func addTask(w http.ResponseWriter, r *http.Request) {
    mu.Lock()
    defer mu.Unlock()
    task := r.URL.Query().Get("task")
    tasks = append(tasks, task)
    fmt.Fprintf(w, "Task added: %s", task)
}

func listTasks(w http.ResponseWriter, r *http.Request) {
    mu.Lock()
    defer mu.Unlock()
    for _, task := range tasks {
        fmt.Fprintf(w, "%s\n", task)
    }
}

Step 5: Test Your App

Run the app using:

go run main.go

Then test adding tasks via your browser or a tool like Postman.

Step 6: Troubleshooting Common Issues

• Issue: The server doesn’t start.

  • Solution: Check if another process is using port 8080.

• Issue: Tasks aren’t being added.

  • Solution: Ensure you’re sending the correct query parameter.

Step 7: What's Next?

Now that you have a basic app running, consider what features you’d like to add next, such as user authentication or a database for persistence.

Conclusion: Start Here

Building a simple app in Golang with AI assistance can be done in under an hour if you follow these steps. Start with a clear idea, leverage AI tools for coding, and keep your project simple.

If you're looking for more guidance, check out our podcast, Built This Week, where we share our experiences and tools that actually work for indie hackers like you.