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Utkarsh Rastogi

Cloud Specialist | AWS Community Builder | I write about AI, serverless, DevOps & real-world cloud projects using AWS, Bedrock, LangChain & more to help others learn and build smarter solutions.

Location India Joined Joined on  Personal website https://linktr.ee/awslearner
Day 3: Modern Chaining with LangChain Expression Language

Day 3: Modern Chaining with LangChain Expression Language

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6 min read

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Day 2: Prompt Engineering Basics with LangChain

Day 2: Prompt Engineering Basics with LangChain

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4 min read
Day 1: LangChain Basics - My First Chat with Claude and Titan

Day 1: LangChain Basics - My First Chat with Claude and Titan

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4 min read
AWS VPC to ECS - Day 5: ECS Service with Smart Auto-Scaling

AWS VPC to ECS - Day 5: ECS Service with Smart Auto-Scaling

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8 min read
AWS VPC to ECS - Day 4: Security Groups, Load Balancer & CodeBuild Setup

AWS VPC to ECS - Day 4: Security Groups, Load Balancer & CodeBuild Setup

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7 min read
AWS VPC to ECS – Day 3: IAM Roles, SSM & ECS Cluster

AWS VPC to ECS – Day 3: IAM Roles, SSM & ECS Cluster

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6 min read
AWS VPC to ECS – Day 2: Internet Gateway, Public Route Table & ECR Repository

AWS VPC to ECS – Day 2: Internet Gateway, Public Route Table & ECR Repository

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4 min read
AWS VPC to ECS – Day 1: Apna VPC Banaate Hain! 😎

AWS VPC to ECS – Day 1: Apna VPC Banaate Hain! 😎

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4 min read
AWS WebSocket Wonders – Part 2: Build & Test a WebSocket API

AWS WebSocket Wonders – Part 2: Build & Test a WebSocket API

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5 min read
📡 WebSocket API in AWS API Gateway – Real-time Magic Explained

📡 WebSocket API in AWS API Gateway – Real-time Magic Explained

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2 min read
Amazon S3 Tables: Turn Your S3 into a SQL-Powered Data Lakehouse – Desi Style!

Amazon S3 Tables: Turn Your S3 into a SQL-Powered Data Lakehouse – Desi Style!

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5 min read
Amazon S3 Vectors: Insert & Query Embeddings with Indian Snacks (Titan + Bedrock Demo)

Amazon S3 Vectors: Insert & Query Embeddings with Indian Snacks (Titan + Bedrock Demo)

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5 min read
Amazon S3 Vectors Explained: Regions & Setup

Amazon S3 Vectors Explained: Regions & Setup

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3 min read
Amazon S3 Vectors: Store, Search & Retrieve Smartly with Vector Magic!

Amazon S3 Vectors: Store, Search & Retrieve Smartly with Vector Magic!

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3 min read
AWS Free Tier 2025: How to Get $200 in Credits and What Changed?

AWS Free Tier 2025: How to Get $200 in Credits and What Changed?

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3 min read
📘 AWS IAM Roles Explained Desi-Style — Guest Lecturers, Inter-School Passes & Temporary IDs! (Part 3)

📘 AWS IAM Roles Explained Desi-Style — Guest Lecturers, Inter-School Passes & Temporary IDs! (Part 3)

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3 min read
Day 11 : FastAPI Auth: Login with JWT & Route Protection

Day 11 : FastAPI Auth: Login with JWT & Route Protection

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6 min read
Day 10: Exception Handling & Custom Errors in FastAPI

Day 10: Exception Handling & Custom Errors in FastAPI

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4 min read
Day 9: Supercharge FastAPI with Async Programming

Day 9: Supercharge FastAPI with Async Programming

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4 min read
Day 8: Background Tasks in FastAPI — Build an Email Logger!

Day 8: Background Tasks in FastAPI — Build an Email Logger!

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4 min read
Day 7: Response Models & Data Validation with Pydantic in FastAPI

Day 7: Response Models & Data Validation with Pydantic in FastAPI

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4 min read
📘 AWS IAM Explained Desi-Style — With Hall Passes, Boundaries & Principal’s Final Word! (Part 2)

📘 AWS IAM Explained Desi-Style — With Hall Passes, Boundaries & Principal’s Final Word! (Part 2)

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3 min read
Day 6 : File Uploads & Form Handling in FastAPI

Day 6 : File Uploads & Form Handling in FastAPI

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3 min read
🐍 Bhai, AI se Bana Diya Snake Game! Q CLI + Python = Full Jugaadu Combo 💻

🐍 Bhai, AI se Bana Diya Snake Game! Q CLI + Python = Full Jugaadu Combo 💻

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3 min read
📘 AWS IAM Explained Desi-Style — With Hall Passes, Principals & Guest Lecturers! (Part 1)

📘 AWS IAM Explained Desi-Style — With Hall Passes, Principals & Guest Lecturers! (Part 1)

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4 min read
Day 5 : Real-World Parameter Integration in FastAPI (Path + Query + Body)

Day 5 : Real-World Parameter Integration in FastAPI (Path + Query + Body)

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3 min read
☁️ AWS Lambda Ki Desi Kahani: Chotu the Serverless Superstar ☕💥

☁️ AWS Lambda Ki Desi Kahani: Chotu the Serverless Superstar ☕💥

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4 min read
Day 4: Mastering Dependency Injection with `Depends()` in FastAPI

Day 4: Mastering Dependency Injection with `Depends()` in FastAPI

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4 min read
Day 3: Request Body & Pydantic Explained with Real-World Context

Day 3: Request Body & Pydantic Explained with Real-World Context

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4 min read
AWS Services Explained for Beginners – Tools, Real Examples & Easy Analogies!

AWS Services Explained for Beginners – Tools, Real Examples & Easy Analogies!

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4 min read
Day 2: Path Parameters & Query Parameters in FastAPI

Day 2: Path Parameters & Query Parameters in FastAPI

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5 min read
Day 1: What is FastAPI & Why Developers Love It

Day 1: What is FastAPI & Why Developers Love It

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4 min read
🌟 Day 10 – Mastering LangChain: What 9 Days Taught Us

🌟 Day 10 – Mastering LangChain: What 9 Days Taught Us

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4 min read
💃 Day 9 - LangChain Output Parsers: Explained Through a Big Fat Indian Wedding 🎊

💃 Day 9 - LangChain Output Parsers: Explained Through a Big Fat Indian Wedding 🎊

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4 min read
🧭 My CloudFormation Yatra – Architecting AWS Like an Epic India Trip 🛕🧳

🧭 My CloudFormation Yatra – Architecting AWS Like an Epic India Trip 🛕🧳

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7 min read
🌟 Day 8: RAG & Prompt Templates — Wisdom Meets AI the Indian Way

🌟 Day 8: RAG & Prompt Templates — Wisdom Meets AI the Indian Way

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5 min read
🛣️ Day 7: From Road Trips to Lost & Found — Mastering Document Splitting & Retrieval with LangChain 🎒🧭

🛣️ Day 7: From Road Trips to Lost & Found — Mastering Document Splitting & Retrieval with LangChain 🎒🧭

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4 min read
🧠 Day 6: Demystifying LangChain Embeddings and Vector Stores — A Chai Tapri Story ☕

🧠 Day 6: Demystifying LangChain Embeddings and Vector Stores — A Chai Tapri Story ☕

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6 min read
Day 5: Structured Output & Multimodality – LangChain’s Festive Fusion of AI Precision & Power!

Day 5: Structured Output & Multimodality – LangChain’s Festive Fusion of AI Precision & Power!

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3 min read
🔓 Day 4: Unlocking LangChain’s Power — Tools, Tool Calling & Messages

🔓 Day 4: Unlocking LangChain’s Power — Tools, Tool Calling & Messages

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4 min read
📅 Day 3: Understanding AI Memory in LangChain – A Shimla Travel Analogy 🇮🇳

📅 Day 3: Understanding AI Memory in LangChain – A Shimla Travel Analogy 🇮🇳

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4 min read
🚀 Day 2: Understanding LangChain Chat Models

🚀 Day 2: Understanding LangChain Chat Models

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2 min read
📘 Day 1: What is LangChain? A Beginner’s Guide to the AI App Framework

📘 Day 1: What is LangChain? A Beginner’s Guide to the AI App Framework

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2 min read
Build a Serverless Feedback & Rating System on AWS — Real-Time, Scalable & Event-Driven

Build a Serverless Feedback & Rating System on AWS — Real-Time, Scalable & Event-Driven

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3 min read
How I Built an AWS Project Idea Generator Using AI

How I Built an AWS Project Idea Generator Using AI

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3 min read
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