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What is cURL? cURL stands for "Client URL" and is a command-line tool for transferring data with URLs. It's widely used for testing APIs, downloading files, and troubleshooting network issues. With cURL, you can send HTTP requests and receive respons...
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What is Database Scaling? When thinking about a software system’s scalability, we must consider the performance of one of the most common system resources: a database. Databases play a crucial role in the overall performance of any system that is dep...
What is a Load Balancer? When dealing with the scalability of our software systems, we may often come across the challenge of dealing with an influx of requests. For example, imagine running a popular web app that sells dog apparel. We just released ...
A conceptual overview of how express-session and Passport.js with the local strategy work together to handle user authentication.
What is Scalability? Let’s imagine we built an app that helps users land jobs. We woke up the following day to notice our app was an overnight success. Multiple publications are raving about our new software, and the app is even trending on Twitter. ...
Learn about how to keep the most relevant data inside of a cache.
Learn about caching, its benefits, and its challenges.
Introduction How do web applications keep a user logged in? How does a shopping site remember what’s in your cart? And how is this done securely? In this article, we’ll define what a web session is, what cookies are, and how cookies are used to impro...
