Topic

S3

2 tutorials tagged S3.

AWS & Serverless

S3 presigned URLs in TypeScript: upload large files straight from the browser

How S3 buckets and objects really work, then generate a presigned PUT URL with AWS SDK v3 in a Lambda, fix the 403 AccessDenied with the right IAM policy, and upload directly from the browser.

10 Nov 2026 · AWS · S3 · TypeScript

AWS & Serverless

Trigger a Lambda on S3 upload and read video metadata with MediaInfo

Use S3 event notifications to run a Lambda on every upload, read the event's bucket and key, run the MediaInfo binary inside Lambda on a presigned URL, and decide transcoding resolutions. Wired up with AWS CDK.

10 Nov 2026 · AWS · S3 · Lambda

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AWS 12 Linux 10 Bash 8 Lambda 7 Beginners 6 CDK 4 TypeScript 4 CloudFormation 2 DynamoDB 2 S3 2 Zsh 2 AI 1 API Gateway 1 Architecture 1 Cost optimization 1 EC2 1 EventBridge 1 grep 1 Jest 1 LLM 1

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API GatewayLambdaS3MediaConvertDynamoDBOpenSearch

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~$ ls -l deploy.sh

-rw-r--r-- 1 you staff 412 deploy.sh

~$ chmod +x deploy.sh

~$ ps aux | grep node

~$ ssh ec2-user@my-server

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Get fast and fluent in the terminal, from the filesystem to shell scripts and real servers.

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