AAA Blog

Projects using NestJS, Prisma, and AWS RDS together are extremely common. However, there’s one frequent issue encountered in real-world applications: Connection Pool overload, which leads to slow performance, DB connection errors, and increased latency. These problems become more common in the following scenarios:

After the introduction of the App Router in Next.js 13 and the enhancement of Server Actions as an official feature in version 14, more projects have started adopting a server-centric architecture. However, during this transition, many developers commonly face one specific issue: caching problems that arise when Server Actions and client-side fetch requests are used together. Next.js is a framework that strongly enforces "server-centric rendering and caching" by default. However, in real-world applications where Server Actions and the fetch API are mixed, this structure often leads to unexpected bugs. In this post, we’ll explore why these issues occur and how to solve them, based on actual code examples.

When discussing cloud or network topics, you'll often hear about a trio of similar-looking acronyms: VPN / VPC / VPS. These terms may look alike, but they refer to completely different concepts. In this article, we'll explain each one using easy-to-understand examples so that even non-technical readers can grasp them instantly.