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title: "Discussion on \"“AWS API Gateway & Lambda: From Beginner to Expert\"\" | Hashnode"
description: "Discussion on \"“AWS API Gateway & Lambda: From Beginner to Expert\"\". What is API Gateway? Why and How?\nAWS API Gateway is a fully managed service that acts like a smart receptionist for your backend. It receives requests from clients, validates and transforms them if n"
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# [“AWS API Gateway & Lambda: From Beginner to Expert"](https://sandhyaops.hashnode.dev/aws-api-gateway-lambda-from-beginner-to-expert?utm_source=hashnode&utm_medium=feed)

What is API Gateway? Why and How? AWS API Gateway is a fully managed service that acts like a smart receptionist for your backend. It receives requests from clients, validates and transforms them if n

Mar 21 · 16 min read · sandhyaops.hashnode.dev  
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-   [#aws-api-gateway-aws-lambda-serverless-integration-lambda-functions](https://hashnode.com/tag/aws-api-gateway-aws-lambda-serverless-integration-lambda-functions)

## Written by

[Sandhya B](https://hashnode.com/@SandhyaDev)

@SandhyaDev · Chennai

  
[View profile](https://hashnode.com/@SandhyaDev)

⚡ Cloud Consultant II | Cloud Infra Support | Architecting Secure & Automated AWS Solutions

My name is Sandhya. I come from a non-tech background with six years of experience before taking a two-year career break to learn cloud computing. Today I work as an AWS Cloud Infrastructure Support Engineer — my first year in tech. Now I have a new goal: transition into AI and MLOps engineering. And it all starts with Python. This blog is my public learning diary. I will document every step — the wins, the errors, the confusion, and the breakthroughs. If you are also starting from scratch, I hope this helps you feel less alone.

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