ByteByteGo Newsletter

A well-known weekly newsletter that explores topics and trends in the design of large-scale systems, created by the authors of the acclaimed System Design Interview series.

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Our New Coding Patterns YouTube channel

Jan 20, 2025 | blog.bytebytego.com | Alex Xu

Our New Coding Patterns YouTube channelBIG announcement: we’ve launched a new YouTube channel! – Coding PatternsThe first video is already live, and we'll aim to post new videos fortnightly. This channel will be run by my colleague Shaun Gunawardane. Our goal is to provide high-quality, entertaining explanations on coding patterns, and interview tips, without making you feel like you’re stuck in a boring lecture.
My NEW book, Coding Interview Patterns, is now available on Amazon

Dec 4, 2024 | blog.bytebytego.com | Alex Xu

My new book, Coding Interview Patterns, is now available on Amazon!I’ve been working on this book for 1.5 years with my co-author, Shaun Gunawardane. We’ve spent countless days for each problem to develop the most intuitive ways to explain the reasoning behind each solution to save you time. Our goal is to help you understand the underlying patterns of each coding problem, so you don’t have to grind through 100s/1000s of them.
A Crash Course on Using AI to Save Time and Focus on What Matters

Nov 26, 2024 | blog.bytebytego.com | Peter Yang

If slow QA processes bottleneck you or your software engineering team and you’re releasing slower because of it — you need to check out QA Wolf. They get engineering teams to 80% automated end-to-end test coverage and helps them ship 5x faster by reducing QA cycles from hours to minutes. QA Wolf takes testing off your plate.
Our New Book, Generative AI System Design Interview, Is Now Available

Nov 18, 2024 | blog.bytebytego.com | Alex Xu

Our new book Generative AI System Design Interview is available on Amazon!- An insiderβs perspective on what interviewers are truly looking for and why. - A 7-step framework to help you tackle GenAI system design interview questions. - 10 real-world GenAI system design questions with in-depth solutions. - 280+ diagrams to demystify complex GenAI systems.
EP66: Comparison of URL, URI, and URN

Jul 1, 2023 | blog.bytebytego.com | Alex Xu

This week’s system design refresher:OAuth 2 explained in simple terms (Youtube video)Comparison of URL, URI, and URNData Warehouse vs Data Lake Twitter 1.0 Tech Stack Sponsor usThe diagram below shows a comparison of URL, URI, and URN. URIURI stands for Uniform Resource Identifier. It identifies a logical or physical resource on the web. URL and URN are subtypes of URI. URL locates a resource, while URN names a resource.
EP64: How to improve API performance

Jun 17, 2023 | blog.bytebytego.com | Alex Xu

This week’s system design refresher:How Discord Stores TRILLIONS of Messages (YouTube video)Netflix's Overall ArchitectureHow to improve API performanceBranching strategiesKey data termsByteByteGo is looking for guest postsGet an in-depth look at one of the most popular programming languages in New Relic's 2023 State of the Java Ecosystem report.
Network Protocols Run the Internet

Jun 15, 2023 | blog.bytebytego.com | Alex Xu

In distributed systems, data is sent over the network using various network protocols. As an application developer, this often seems like a block box until an issue arises. In this issue, we’ll explain how common network protocols work, where they are used in distributed systems, and how we troubleshoot common problems. We’ll cover some popular interview questions as well. For example:What happens when we type a URL in a web browser? What is the TCP 3-way handshake? What is TCP time_wait?
EP63: Linux file system explained

Jun 10, 2023 | blog.bytebytego.com | Alex Xu

This week’s system design refresher: Top 5 Most-Used Deployment Strategies (Youtube video)Linux file system explainedCheatsheet for SQL and NoSQL databasesVector databasesByteByteGo Talent CollectiveQA Wolf gets web apps to 80% automated end-to-end test coverage in weeks, not years. With unlimited, parallel runs on their infrastructure and their Zero Flake Guarantee. Skeptical?
Rate Limiter For The Real World

Jun 8, 2023 | blog.bytebytego.com | Alex Xu

In the previous article, we discussed the fundamentals of rate limiting and explored several popular rate limiting algorithms. We’ll continue by exploring how to build some real-world rate limiters. There are many factors to consider when developing a rate limiter for the real world. For example, in many use cases, a rate limiter is in the most critical path of an application.
Rate Limiting Fundamentals

May 31, 2023 | blog.bytebytego.com | Alex Xu

Rate limiting is a popular distributed system pattern. It is an integral part of all modern large-scale applications. It controls the rate at which users or services can access a resource, like an API, a service, or a network. It plays a critical role in protecting system resources and ensuring fair use among all users. In this series, we explore rate limiting in depth. We’ll discuss how rate limiting is used in modern applications and examine the popular rate limiting algorithms.