Lessons from 35+ shipped apps.

Modern applications often need to process thousands or even millions of messages between different services. Microservices, payment systems, e-commerce platforms, analytics applications, and distributed systems all need reliable ways to move data between components. Two technologies frequently considered for this purpose are RabbitMQ and Apache Kafka. While both are used for asynchronous communication and distributed […]

AI applications are moving beyond simple chatbots. Modern AI systems can plan tasks, call tools, remember information, make decisions, and perform multiple steps before producing a final result. Building these kinds of applications requires more than simply sending a prompt to a large language model. This is where LangGraph comes in. LangGraph is a framework […]

APIs are the backbone of modern web applications. From mobile apps and e-commerce platforms to SaaS products and AI applications, APIs allow different systems to communicate and exchange data. But when too many requests reach an API at the same time, servers can become overloaded, applications can slow down, and services can become unavailable. This […]

If you have ever ordered food online, booked a cab, checked your bank balance, watched a video, or chatted with friends using your smartphone, chances are you have used a mobile app. Mobile apps have become an important part of everyday life. From communication and entertainment to shopping, education, healthcare, banking, and business, there is […]

If you’re starting a new JavaScript project, you may find yourself comparing Next.js vs React. Both are extremely popular technologies for building modern web applications, but they are not exactly the same thing. React is a JavaScript library focused primarily on building user interfaces, while Next.js is a React-based framework that provides additional features for […]

When building and deploying modern web applications, you may hear terms like reverse proxy, Nginx, load balancer, web server, and API gateway. These technologies often work behind the scenes, so understanding what they do can be confusing at first. So, what is a reverse proxy, and why do websites and applications use one? A reverse […]

Choosing the right programming language can be confusing, especially when you are starting application development. Dart, JavaScript, and Kotlin are all modern programming languages, but they were designed with different goals and ecosystems in mind. Dart is strongly associated with Flutter and cross-platform application development. JavaScript is one of the core technologies of the web […]

If you have ever built a frontend application with React, Next.js, Vue, Angular, or JavaScript and connected it to a backend API, you may have encountered an error like “Access to fetch at … has been blocked by CORS policy.” This error can be confusing, especially when the API works perfectly in Postman or directly […]

Modern web applications need a secure way to identify users after they log in. Whether you are building a React application, Node.js API, mobile app, or SaaS platform, authentication tokens are commonly used to maintain a user’s authenticated state. Two important concepts in token-based authentication are access tokens and refresh tokens. But what is the […]