Let’s Handle 1 Million Requests per Second, It’s Scarier Than You Think!

In this course, you’ll master Next.js 16, the latest version of the official React framework, and learn how to build powerful, full-stack applications using its new caching and performance features. You’ll put your skills into practice by creating and deploying a Dev Event Platform, a modern app where users can browse, create, and manage events. PostHog: https://jsm.dev/devevent-posthog WebStorm: https://jsm.dev/devevent-webstorm Junie AI: https://jsm.dev/devevent-junie Warp: https://jsm.dev/devevent-warp CodeRabbit: https://jsm.dev/devevent-coderabbit CodeRabbit CLI: https://jsm.dev/devevent-coderabbitcli Cloudinary: https://jsm.dev/devevent-cloudinary The Complete Testing Course is LIVE. 🔥 Bundle up now before the deal expires and get 33% Off‼ 👉 https://jsm.dev/devevent-testing 📗 GSAP Pro Course (includes GTAVI Website): https://jsm.dev/devevent-gsap 📕 Three.js 3D Pro Course: https://jsm.dev/devevent-threejs 📙 JavaScript Pro Course: https://jsm.dev/devevent-cpjsm 🚀 Launch Your SaaS Pro Course: https://jsm.dev/devevent-saas ‼ If the links aren’t working for you, please try using a VPN (e.g., in Nigeria) 📁 FREE Video Kit (Code, Figma, Assets, Etc.): https://jsm.dev/devevent-kit 👉 Backend Pro Course Waitlist: https://jsm.dev/devevent-backpro 👉 AI Development Pro Course Waitlist: https://jsm.dev/devevent-aipro 👉 Tailwind Pro Course Waitlist: https://jsm.dev/devevent-twpro 👉 React.js Pro Course Waitlist: https://jsm.dev/devevent-reactpro 👉 React Native Pro Course Waitlist: https://jsm.dev/devevent-nativepro Rate us on TrustPilot: https://jsm.dev/trustpilot https://discord.com/invite/n6EdbFJ https://twitter.com/jsmasterypro https://instagram.com/javascriptmastery https://linkedin.com/company/javascriptmastery Business Inquiries: contact@jsmastery.pro Time Stamps: 00:00:00 — Introduction 00:04:09 — Crash Course Intro 00:08:30 — Installation 00:11:45 — Project Structure 00:14:19 — App Router 00:17:16 — React Client & Server Components 00:23:40 — Routing 00:42:42 — Data Fetching 00:48:53 — API Routes 00:52:45 — Caching 00:56:05 — Build Adapters API 00:57:24 — Metadata 01:01:23 — Theory to Practice — — — 01:02:48 — Project Setup 01:18:01 — Homepage 01:41:35 — PostHog Setup 01:50:21 — MongoDB Setup 01:52:57 — Warp Setup 01:56:46 — Database Models & Connection 02:09:36 — CodeRabbit 02:16:11 — API Routes 02:27:03 — Image Upload 02:37:51 — Fetch API Routes 02:54:47 — Event Details Page 03:14:34 — Server Actions 03:28:05 — Caching 03:39:46 — PostHog: Booking Action & Tracking 03:54:05 — Deployment 03:58:15 — Outro

Level up your system design skills! This course progresses from foundational concepts to production-ready systems, covering databases, scaling, and load balancing. Learn practical techniques for building and securing APIs, including RESTful and GraphQL. Course developed by @hayk.simonyan ❤️ Support for this channel comes from our friends at Scrimba – the coding platform that's reinvented interactive learning: https://scrimba.com/freecodecamp ⭐️ Contents ⭐️ - 0:00:00 Introduction - 0:03:05 Single Server Setup - 0:07:12 Databases: SQL, NoSQL, Graph - 0:13:32 Vertical vs Horizontal Scaling - 0:16:22 Load Balancing - 0:25:08 Health Checks - 0:28:00 Single Point of Failure (SPOF) - 0:31:01 API Design - 0:47:17 API Protocols - 0:59:10 Transport Layer: TCP, UDP - 1:04:22 RESTful APIs - 1:19:04 GraphQL - 1:24:52 Authentication - 1:45:51 Authorization - 1:57:02 Security 🎉 Thanks to our Champion and Sponsor supporters: 👾 @omerhattapoglu1158 👾 @goddardtan 👾 @akihayashi6629 👾 @kikilogsin 👾 @anthonycampbell2148 👾 @tobymiller7790 👾 @rajibdassharma497 👾 @CloudVirtualizationEnthusiast 👾 @adilsoncarlosvianacarlos 👾 @martinmacchia1564 👾 @ulisesmoralez4160 👾 @_Oscar_ 👾 @jedi-or-sith2728 👾 @justinhual1290 -- Learn to code for free and get a developer job: https://www.freecodecamp.org Read hundreds of articles on programming: https://freecodecamp.org/news

This 8 hour course teaches you all of the core fundamentals you need to learn how to build server applications using Express JS. You will learn how to implement the basic HTTP request methods, validate request bodies, implement sessions, save data to a database, manage user authentication, integrate OAuth2, and writing automated unit & integration tests! Code: https://github.com/stuyy/expressjs-full-course Support the Channel: Become a Member: https://www.youtube.com/ansonthedeveloper/join Become a Patreon: http://patreon.com/stuyy Buy me a Coffee: http://ko-fi.com/anson Donate on PayPal: https://paypal.me/ansonfoong Connect with me: Twitter: https://twitter.com/ansonthedev Discord: https://discord.gg/MDHGJsAsXA GitHub: http://github.com/stuyy Twitch: http://twitch.tv/stuy 0:00 Intro & Setup 11:01 Get Requests 20:40 Route Params 30:08 Query Params 42:54 Post Requests 56:07 Put Requests 1:10:02 Patch Requests 1:19:00 Delete Requests 1:26:47 Middleware 1:48:24 Validation 2:19:52 Routers 2:38:59 Cookies 2:58:59 Sessions 3:15:24 Sessions Pt. 2 3:38:02 Passport.js & Authentication 4:15:39 Databases & MongoDB 4:42:10 Hashing Passwords 4:54:45 Session Store 5:11:58 OAuth2 5:49:38 Unit Testing & Jest 7:14:12 E2E Testing

An LLM is an incredibly powerful brain that knows everything about humanity and nothing about you or the software you run. This video walks through the four buzzwords that turn that raw brain into a system you can trust: agent harness, loop engineering, LLM Ops, and eval. No jargon, step by step, technical or not. You can build anything. You can learn anything. 💪 Timeline 0:00 Intro: the 4 AI agent buzzwords 0:42 What an AI agent run actually is 1:52 The memory system: procedural, semantic, episodic 3:37 What "harness" really means (the horse) 5:07 Storing and updating memory (databases, skills, summarizer agent) 8:28 Retrieval: RAG, SQL vs semantic search 10:00 Tool calling and why agents loop 10:52 Loop engineering and end-loop guardrails 13:21 A Claude Code hooks example 14:18 Eval and LLM Ops: why you need them 15:55 Tracing every run (Langfuse, LangSmith) 16:43 Evaluation: LLM as a judge 17:20 Diagnosing what broke 18:16 The gate: ship the fix or fix the bug 18:57 Zoom out: the full system 19:53 Wrap up Launch Full-Stack App Template: https://github.com/ShenSeanChen/launch-mvp-stripe-nextjs-supabase My AI Agent Startup AutoManus.io is an AI sales lead manager for made-to-order product sales. We embed directly where conversations happen (WhatsApp, email, web chat) to capture inbound, automate follow‑ups, and kill CRM busywork; live with 4 pilots and 2 contracts in motion, pre‑seed backed by Character VC. Focused on US/UK/Germany, raising to expand engineering and scale deployments. ☕️ Buy me a coffee: https://buy.stripe.com/5kA176bA895ggog4gh - X: https://x.com/ShenSeanChen - Sean's Discord: https://discord.gg/tvECErKcFr - AutoManus Discord: https://discord.gg/5HhcNjCR - LinkedIn: https://linkedin.com/in/shen-sean-chen - Github Link: https://github.com/ShenSeanChen - Instagram: https://www.instagram.com/sean_ai_stories Sub Count when launched: 13,050 Top Github Repos - LaunchMVP NextJS,Supabase,Stripe (1015 stars): https://github.com/ShenSeanChen/launch-mvp-stripe-nextjs-supabase - ReactNextJSTips (114 stars): https://github.com/ShenSeanChen/yt-react-nextjs-tips - DeepResearchAgentBackend (70 stars): https://github.com/ShenSeanChen/yt-DeepResearch-Backend - SupabaseTipsKanban (64 stars): https://github.com/ShenSeanChen/yt-supabase-tips-kanban - RAGVectorDB (56 stars): https://github.com/ShenSeanChen/yt-rag - KimiK2Claude (37 stars): https://github.com/ShenSeanChen/yt-kimi-k2-claude - DeepResearchAgentFrontend (33 stars): https://github.com/ShenSeanChen/yt-DeepResearch-Frontend - AgenticRAG (13 stars): https://github.com/ShenSeanChen/yt-agentic-rag You Can Build Anything Playlist (Full-Stack Dev Without CS Degrees) - Core7: 95% React/NextJS Use Cases https://www.youtube.com/watch?v=vZzFlAjz4rA&list=PLE9hy4A7ZTmpGq7GHf5tgGFWh2277AeDR&index=16 - Core6: 95% Supabase Use Cases https://www.youtube.com/watch?v=Pnoq2tIif3s&list=PLE9hy4A7ZTmpGq7GHf5tgGFWh2277AeDR&index=15 - Core5: StripeNextJSSupabase https://www.youtube.com/watch?v=ad1BxZufer8&list=PLE9hy4A7ZTmpGq7GHf5tgGFWh2277AeDR&index=8 - Core4: AuthSupabaseGoogle https://www.youtube.com/watch?v=AZAU3ClAWWE&list=PLE9hy4A7ZTmpGq7GHf5tgGFWh2277AeDR&index=6 - Core3: FastapiGCPPro https://www.youtube.com/watch?v=u3sfqpzzo-U&list=PLE9hy4A7ZTmpGq7GHf5tgGFWh2277AeDR&index=5 - Core2: SupabaseHero https://www.youtube.com/watch?v=V0kmgkyPsVQ&list=PLE9hy4A7ZTmpGq7GHf5tgGFWh2277AeDR&index=4 - Core1: LaunchAnApp https://www.youtube.com/watch?v=iQ2izvGG4tQ&list=PLE9hy4A7ZTmpGq7GHf5tgGFWh2277AeDR&index=3 - Launch WhereToMeet w/ GoogleMaps, Calendar, Supabase, Cursor: https://www.youtube.com/watch?v=5xMjX1QxGUY&list=PLE9hy4A7ZTmpGq7GHf5tgGFWh2277AeDR&index=2 - Launch EncourageMe w/ Cursor, Supabase, Vercel https://www.youtube.com/watch?v=hnvL4xa2DHA&list=PLE9hy4A7ZTmpGq7GHf5tgGFWh2277AeDR

Learn DevOps fast in this crash course covering Git & GitHub, CI/CD pipelines, Docker, Kubernetes, IaC, and API deployment. Everything you need to automate dev and deployment. ⭐ Join JS Mastery Pro: https://jsm.dev/dops25-jsm 💎 Become a Top 1% Next.js Developer: https://jsm.dev/dops25-nextjs Use your promo code JAVA to get the Warp Pro plan for only $1, available for a limited time thanks to my friends at Warp! Warp: https://jsm.dev/dops25-warp Arcjet: https://jsm.dev/dops25-arcjet Neon: https://jsm.dev/dops25-neon 📁 FREE Video Kit (Code, Figma, Assets, Etc.): https://jsm.dev/dops25-kit 📙 Git & GitHub Course: https://jsm.dev/dops25-git 📘 Docker Course: https://jsm.dev/dops25-docker 👉 Next.js Testing Pro Course Waitlist: https://jsm.dev/dops25-testpro 👉 Backend Pro Course Waitlist: https://jsm.dev/dops25-backpro 👉 Tailwind Pro Course Waitlist: https://jsm.dev/dops25-twpro 👉 React.js Pro Course Waitlist: https://jsm.dev/dops25-reactpro 👉 React Native Pro Course Waitlist: https://jsm.dev/dops25-rnpro Rate us on TrustPilot: https://jsm.dev/trustpilot https://discord.com/invite/n6EdbFJ https://twitter.com/jsmasterypro https://instagram.com/javascriptmastery https://linkedin.com/company/javascriptmastery Business Inquiries: contact@jsmastery.pro Time Stamps: 00:00:00 — Introduction 00:06:04 — Introduction to DevOps 00:09:45 — What is DevOps 00:20:41 — What You Need to Learn in DevOps 00:25:42 — Version Control (Git & GitHub) 00:50:33 — CI/CD Pipelines 00:55:06 — Build Your First Pipeline 01:03:21 — Docker 01:55:39 — Kubernetes 02:03:35 — Kubernetes Demo 02:26:34 — Infrastructure as Code (IaC) 02:29:37 — More on DevOps Build & Deploy an API 02:30:49 — Setup 02:41:44 — ESLint Prettier 02:46:09 — Database Setup 02:54:18 — Logger & Middleware 03:05:15 — Authentication I 03:35:56 — Warp Setup 03:47:53 — Security Middleware 04:03:11 — Dockerization 04:21:49 — User CRUD 04:38:50 — Testing 04:48:35 — Next Steps

💻 Source Code: https://cwa.run/nodebase 🎨 Free Assets: https://cwa.run/node-assets 🎥 Part 2: https://youtu.be/S-4DrLHtL1s?si=n4a7jM4FUWf9NN32 📚 Resources: Try Inngest: https://cwa.run/node-inngest Try Polar: https://cwa.run/node-polar Try Better Auth: https://cwa.run/node-auth Try Sentry: https://cwa.run/sentry Try CodeRabbit: https://cwa.run/node-rabbit Try Neon: https://cwa.run/node-neon In this tutorial, we're building Nodebase, a complete workflow automation platform from scratch. You'll learn how to create a visual drag-and-drop canvas for building workflows, integrate multiple triggers and AI providers, handle background job execution, and build a full SaaS business layer with authentication, subscriptions, and paywalls. We'll also cover error tracking with AI monitoring and a professional Git workflow with AI-powered code reviews. Key features: 🔄 Visual workflow builder 🎯 Trigger nodes (Webhook, Google Form, Stripe, Manual) 🤖 AI integrations (OpenAI, Claude, Gemini) 💬 Messaging nodes (Discord, Slack) 🌐 HTTP request node ⚡ Background job execution with Inngest 💳 Polar payments & subscriptions 🔐 Better Auth authentication 🎨 React Flow canvas 🗄️ Prisma ORM + Neon Postgres 🔒 Type safety with TypeScript + tRPC 🐛 Sentry error tracking + AI monitoring 🧑‍💻 CodeRabbit PR reviews 🌐 Next.js 15 App Router 📱 Production-ready SaaS Timestamps 00:00 Intro 06:05 01 Setup 29:33 02 Database 56:15 03 tRPC Setup 01:35:21 04 Authentication 02:37:24 05 Theme & Styling 02:55:05 06 Background Jobs 03:28:09 07 AI Providers 04:01:53 08 Error Tracking 04:27:54 09 Sidebar Layout 05:06:26 10 Payments Setup 05:44:04 11 Workflows Crud 06:45:20 12 Workflows Pagination 07:34:34 13 Workflows UI 08:23:40 14 Workflow Page 08:59:36 15 Editor Setup 09:50:42 16 Node Selector 10:40:32 17 Editor State 11:59:20 End of Part 1