One of my goals as a developer is to move beyond building static websites and learn how to create applications that store, retrieve, and manage real data.
That goal has influenced my work on Austine Kicks, a sneaker e-commerce project I am developing using HTML, CSS, JavaScript, Go, and Neon PostgreSQL.
In this post, I want to share some of the lessons I have encountered while exploring backend development and database integration.
Why I Chose Go for the Backend
I have been learning Go at Zone01 Kisumu, and I wanted to apply what I was learning to a practical project.
Go provides a way to build HTTP servers, handle requests, define application logic, and communicate with databases.
For my project, I started organizing the backend into different responsibilities rather than placing everything in a single file.
My structure includes areas for:
- Server startup.
- Database connection and schema.
- HTTP handlers.
- Data models.
- Middleware.
- Routes and application logic.
Separating these responsibilities makes the code easier to understand and maintain as the project grows.
Working With Neon PostgreSQL
For the database, I chose Neon, a hosted PostgreSQL service.
The application needs to manage product information such as names, brands, categories, prices, available sizes, stock quantities, descriptions, and product images.
I also started planning the database structure for orders and order items.
A simplified product table might look like this:
CREATE TABLE products (
id SERIAL PRIMARY KEY,
name VARCHAR(150) NOT NULL,
brand VARCHAR(100),
category VARCHAR(100),
price NUMERIC(10, 2) NOT NULL,
stock INTEGER NOT NULL DEFAULT 0,
description TEXT,
image TEXT,
featured BOOLEAN DEFAULT FALSE
);
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This structure provides a starting point for storing sneaker information in a consistent format.
Connecting the Database to Go
The backend needs a database connection before it can retrieve or save products.
I configured the application to read the database connection string from an environment variable called DATABASE_URL.
This is important because database credentials should not be hardcoded into the source code or committed to a public repository.
I also worked on applying the database schema and seeding initial products to make development and testing easier.
Understanding the Frontend-Backend Connection
One challenge I encountered was ensuring that the frontend requested data from the correct API endpoint.
For example, if the backend exposes products through /api/products, the frontend must request that same path.
If the frontend requests /data/products instead, the server may return a 404 error even when the database is connected successfully.
This taught me an important lesson: a working database does not automatically mean that the entire application is working.
The database, backend routes, API responses, and frontend JavaScript must all work together.
What I Have Learned
Working on Austine Kicks has helped me understand that backend development involves more than writing database queries.
I need to think about data models, API design, configuration, error handling, security, and how different components communicate.
I am still improving the project, but every problem I solve gives me a clearer understanding of how full-stack applications are built.
My next steps include strengthening validation, improving error handling, testing API endpoints, and making the application easier to deploy.
For developers who have built Go applications with PostgreSQL, what practices helped you organize your backend and database code?