In this series, we'll take a comprehensive look at building a bill payment application. We'll delve into the various intricacies and components that make up such an application, such as product-customer purchase systems, wallet systems, payment gateway integrations, and other engineering techniques. Additionally, we will explore various security measures.

Our case study will focus on Nigeria, as it represents a unique market and presents specific challenges that must be addressed. Nigeria is a bustling city with a large population, and as such, the bill payment application must be able to handle a significant volume of transactions.

One of the most important aspects we'll cover in this series is the integration of payment gateways. This feature is critical in ensuring that transactions are processed securely and efficiently. We'll explore different payment gateway options and evaluate their advantages and disadvantages.

Integrating third-party APIs is also an essential aspect of building a bill payment application. We'll guide how to integrate various APIs and what to look out for when choosing which APIs to use. We'll also discuss the advantages and disadvantages of different payment gateways and offer tips for selecting the best option.

We will be working with various tools ranging from Java, Spring boot, Thymeleaf, Mysql and Docker.

The concept of building a bill payment application may seem complex, but it can be straightforward with the right understanding of software engineering concepts. This topic is broad, but it can be broken down into various episodes of why and how to implement common and domain-specific techniques. The focus here is on bill payment, which is a common concern for many people, including those living in bustling cities like Lagos, Nigeria. The monthly bills can be overwhelming, including feeding expenses, house rent, electricity bills, phone bills, transport bills, cable TV subscriptions, and more. While people work hard to earn money, paying bills traditionally can be a hassle that no one wants to deal with.

This is where a bill payment web application comes into play. The aim is to build a digital solution that can help people purchase products and services online, providing value instantly. By doing so, the burden of paying bills traditionally can be lifted off their shoulders. The technicalities involved in building this solution can be addressed using various techniques that will be explored in this series. With the right tools and knowledge, building a bill payment web application can be an easy task.

In summary, this series aims to help people understand the technicalities of building a bill payment application. It is not as complex as it may seem at first glance, and the focus is on providing a digital solution to ease the burden of paying bills. By following the techniques explored in this series, developers can build a bill payment web application that provides value to customers. Anyone with questions or ideas can reach out to me on Twitter.