Generate Kotlin tests with EasyCode and ChatGPT
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Leveraging AI to Simplify Test Writing in IntelliJ

ByTomas Zezula

Today, I would like to share a quick productivity tip. As developers, we sometimes skip writing extensive tests, particularly when under time pressure. As much as tests are necessary, they can also be tedious to write. For example, due to learning a new testing framework or when dealing with intricate business logic. Furthermore, this task often involves a certain degree of repetitive boilerplate, which can be a considerate discouragement for some developers. In this post, we’ll explore how generative AI saves time and effort without compromising on quality of writing detailed tests.

Keep Data Safe in Multi-Tenant Systems: A Case for Supabase and Row Level Security
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Keep Data Safe in Multi-Tenant Systems: A Case for Supabase and Row Level Security

ByTomas Zezula

When managing multi-tenant systems, one common anxiety is that a coding error can unintentionally expose user data. Incorrectly routing a user’s data to the wrong tenant, or even distributing it to another user within the same tenant, is a very real fear. Additional precautions are necessary to safeguard against human errors. Supabase is an open-source platform that offers a viable alternative to Firebase. Similar to Firebase, it provides a frictionless user authentication process. Due to its integration with Postgres, it supports sophisticated access controls at a row level, aptly referred to as Row-Level Security (RLS). In this article, we’ll explore a concrete example of leveraging this feature and provide step-by-step implementation guidelines.

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Asynchronous Webhook Handling with WebFlux, Kotlin Coroutines And Kafka

ByTomas Zezula

Webhooks offer a robust integration with third-party services, facilitating complex and time-consuming processes asynchronously. Yet, they present a high risk of missed events due to high latency or performance issues. In this blog post, I’ll guide you through a reliable and scalable solution for handling webhooks. The toolkit consists of Spring Boot, WebFlux, Kotlin coroutines, and Apache Kafka. I’ll show you how to build a system that efficiently enqueues incoming requests into an internal queue for background processing. So let’s delve into it!

Kotlin coroutines

Embracing Efficiency with Kotlin Coroutines

ByTomas Zezula

Kotlin coroutines are a powerful tool that propels efficiency in dealing with concurrent programming. They enable to treat asynchronous code as if it was synchronous, making it easier to manage and understand. In this blog post, I explore some of the core principles of coroutines and compare their performance against conventional blocking calls.

Flexible payments with Stripe and Kotlin
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Custom Checkout and Subscription Tiers with Stripe and Kotlin

ByTomas Zezula

Want to get ahead in your business by offering personalized payment and subscription options that fit your customer’s specific needs? Stripe can make this easier with an SDK that lets you easily create complex pricing plans. In this post, I delve into how you can streamline your Stripe integration with Kotlin.