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Arfatur Rahman

Arfatur Rahman is Full-Stack Developer skilled in React, Next.js, Node.js, AI/ML (OpenAI, LangChain), Tailwind CSS, MongoDB, Firebase, and real-time apps.

Codestin Search App Chittagong, Bangladesh Codestin Search App Joined on  Codestin Search App [email protected] Codestin Search App https://arfat.app/ Codestin Search App Codestin Search App

Education

B.Sc in CSE

Work

Software Developer at Todvob LTD

How I Finally Forced LLMs to Return Perfect JSON (2025 Edition) — No Hacks, No Regex, Just Clean Output
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How I Finally Forced LLMs to Return Perfect JSON (2025 Edition) — No Hacks, No Regex, Just Clean Output

#langchain #nextjs #gemini #typescript
Codestin Search App
2 min read
Why LangChain Is Better Than Raw LLM APIs — A Quick Developer-Friendly Breakdown
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Why LangChain Is Better Than Raw LLM APIs — A Quick Developer-Friendly Breakdown

#langchain #node #gemini #typescript
Codestin Search App
2 min read
Building a TypeScript Express API for Vercel Deployment: A Step-by-Step Guide
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Building a TypeScript Express API for Vercel Deployment: A Step-by-Step Guide

#node #express #typescript #vercel
Codestin Search App
5 min read
How to Install and Configure Elasticsearch on Windows
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How to Install and Configure Elasticsearch on Windows

#elasticsearch #windows #localhost
Codestin Search App
5 min read
Parallel vs Sequential Data Fetching in Next.js 15 with TypeScript
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Parallel vs Sequential Data Fetching in Next.js 15 with TypeScript

#nextjs #typescript
Codestin Search App
6 min read
Generating dynamic robots.txt and sitemap.xml in a Next.js App Router with TypeScript
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Generating dynamic robots.txt and sitemap.xml in a Next.js App Router with TypeScript

#nextjs #typescript #sitemap
1
Codestin Search App
3 min read
Mistral Basic AI Agent Using NextJS with TypeScript
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Mistral Basic AI Agent Using NextJS with TypeScript

#mistral #nextjs #typescript #agents
1
Codestin Search App
4 min read
Tutorial: Streaming Responses in Next.js with function*, yield, and ReadableStream
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Tutorial: Streaming Responses in Next.js with function*, yield, and ReadableStream

#nextjs #mistral #typescript #javascript
3
Codestin Search App
5 min read
How to Write Clear and Effective Code Comments in JavaScript with Better Comments
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How to Write Clear and Effective Code Comments in JavaScript with Better Comments

#javascript #coding #productivity #webdev
8
Codestin Search App
3 min read
Bkash Payment with NextJS & TypeScript
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Bkash Payment with NextJS & TypeScript

#javascript #react #nextjs #typescript
6
Codestin Search App 1
3 min read
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