Feb 17 · 5 min read · In production LLM apps, the biggest burn rate is rarely “deep reasoning”—it’s redundant intent. Support, search, and chat workloads are typically heavy-tailed: a small set of intents (“reset password”, “pricing”, “integration setup”) drives a disprop...
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Feb 12 · 2 min read · Upstash Redis Edge: Global Caching in 2026 The Problem I Spent Weeks Solving Last quarter, our team faced this exact challenge. Here's what we learned. Table of Contents Why Traditional Approaches Fail Modern Solution Overview 5 Implementation Str...
Join discussionNov 28, 2025 · 1 min read · If you are working with @upstash/redis sdk with JavaScript and you are getting the below kind of error while appending to the array then you can watch this. So, this error came up when I tried to send the data of content-type as application/json whi...
Join discussionNov 3, 2025 · 5 min read · Last week, I attended the live workshop Build a Full-Stack Next.js App v4 by Brian Holt on Frontend Masters. It was an incredible deep dive into building production-grade applications from scratch to deployment. Here is the note I took on crafting a ...
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Jul 11, 2025 · 4 min read · Why Rate Limit your APIs? Rate limiting APIs is important to prevent abuse or unexpected usage on your APIs. For example, say you have a public waitlist form to collect emails of your potential users. Here, your API that handles your waitlist form su...
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Jul 5, 2025 · 3 min read · Introduction Hi! I’m Charan. I’m a software engineer and a freelance full-stack developer. Welcome to my web notes, where I write short (or sometimes long) blog posts about things I learn as I build various SaaS applications. I usually build my apps ...
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Jul 28, 2024 · 2 min read · What is Rate Limiting? Suppose you have a application where a user can post his picture, for this action you are calling an api endpoint running on a server and the endpoint stores the post in the database. Now lets say the user posting the picture s...
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May 2, 2024 · 2 min read · Exploring Upstash: Serverless Redis for Modern Applications Upstash is a cloud-based service that provides serverless Redis instances for modern applications. It offers a fully managed Redis database that is scalable, reliable, and easy to use, allow...
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Apr 20, 2024 · 6 min read · In today's fast-paced digital world, speed is paramount. Users expect applications to respond instantly, deliver real-time updates, and provide seamless experiences across devices. To meet these demands, developers need high-performance tools that ca...
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