Anuj Kumar Upadhyay (@Anuj1)

Building a Conversational Retrieval Chain with LangChain

In my last article, I showed how to create a Retrieval Chain in LangChain — one that could answer single, independent questions based on external context. But here’s the catch: most real-world use cases don’t stop at a single query. Users want a chat...

Sep 8, 2025 · 3 min readanuj1.hashnode.dev

Building a Retrieval-Based LLM with LangChain

In our previous article, we explored how LangChain can be used to build a simple LLM chain using a prompt template. This time, we’re diving deeper into a more powerful capability of LangChain — creating a Retrieval Chain, a pattern especially useful ...

Aug 7, 2025 · 4 min readanuj1.hashnode.dev

Beginner's Guide for LangChain

LangChain is a Basically a Open Source Python Package to build applications powered by Large Language Models such as ChatGPT. To install LangChain, in the terminal, run: pip install langchain To use LangChain with OpenAI, you need to use the langcha...

Jul 23, 2025 · 3 min readanuj1.hashnode.dev

gRPC: Why You Should Care in 2025

Think REST APIs are the final word in microservices communication? Think again. While you've been crafting JSON endpoints, Google's been cooking up something that makes traditional APIs look like smoke signals compared to fiber optic cables. The API ...

Jun 26, 2025 · 8 min readanuj1.hashnode.dev

MVC vs MVP vs MVVM: The Ultimate Developer's Guide to Choosing the Right Architectural Pattern in 2025

Ever wondered why some codebases feel like navigating through a well-organized library while others resemble a chaotic yard? The secret lies in architectural patterns – and today, we're diving deep into the three titans that have shaped modern softwa...

Jun 26, 2025 · 7 min readanuj1.hashnode.dev

Anuj Kumar Upadhyay

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Available for

Anuj Kumar Upadhyay's blogs

Building a Conversational Retrieval Chain with LangChain

Building a Retrieval-Based LLM with LangChain

Beginner's Guide for LangChain

gRPC: Why You Should Care in 2025

MVC vs MVP vs MVVM: The Ultimate Developer's Guide to Choosing the Right Architectural Pattern in 2025

Anuj Kumar Upadhyay

About

Available for

Anuj Kumar Upadhyay's blogs

Building a Conversational Retrieval Chain with LangChain

Building a Retrieval-Based LLM with LangChain

Beginner's Guide for LangChain

gRPC: Why You Should Care in 2025

MVC vs MVP vs MVVM: The Ultimate Developer's Guide to Choosing the Right Architectural Pattern in 2025

Anuj Kumar Upadhyay

About

Available for

Anuj Kumar Upadhyay's blogs

Building a Conversational Retrieval Chain with LangChain

Building a Retrieval-Based LLM with LangChain

Beginner's Guide for LangChain

gRPC: Why You Should Care in 2025

MVC vs MVP vs MVVM: The Ultimate Developer's Guide to Choosing the Right Architectural Pattern in 2025

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Anuj Kumar Upadhyay

About

Available for

Anuj Kumar Upadhyay's blogs

Building a Conversational Retrieval Chain with LangChain

Building a Retrieval-Based LLM with LangChain

Beginner's Guide for LangChain

gRPC: Why You Should Care in 2025

MVC vs MVP vs MVVM: The Ultimate Developer's Guide to Choosing the Right Architectural Pattern in 2025