🔥 AWS API Gateway CORS Setup Tutorial 🔥

Published: 20 October 2025
on channel: Cloud Guru

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🚀 Tired of the “Blocked by CORS policy” error? In this video, you’ll learn exactly how to enable CORS in AWS API Gateway step-by-step — whether you’re using Lambda integration or HTTP endpoints.

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You’ll understand:

✅ What CORS (Cross-Origin Resource Sharing) actually is
⚙️ How to enable CORS in AWS API Gateway from scratch
🧩 Configuring OPTIONS method properly
💡 Testing CORS with Postman and your frontend app
🛠️ Common CORS mistakes and how to fix them

This tutorial is perfect for developers building APIs with AWS Lambda + API Gateway or deploying serverless apps.

💬 Watch till the end to avoid the most common misconfigurations that cause CORS issues!

🔗 Timestamps:
00:00 Intro
00:45 What is CORS?
01:10 CORS in API Gateway Console
02:00 OPTIONS Method Configuration
02:30 Testing with Browser & Postman
03:00 Fixing Common Errors
03:30 Wrap-Up

💻 Tech Stack Used:
AWS API Gateway | AWS Lambda | Postman | JavaScript | Node.js

#AWS #APIGateway #CORSTutorial #AWSLambda #Serverless #FullStackDevelopment

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