Скачать или смотреть Upload Files to S3 using Presigned URL | AWS Lambda Real World Tutorial

In this video, you will learn how to upload files directly to Amazon S3 using a presigned URL generated by AWS Lambda. This is the real-world and scalable approach used in production systems.

Uploading files through backend servers or Lambda functions is not efficient in real applications.

In this AWS tutorial, we implement direct file upload to S3 using presigned URLs.

What we will cover:
Why presigned URLs are needed
How AWS Lambda generates a presigned URL
How clients upload files directly to S3
How this approach avoids Lambda size and timeout limits

This pattern is widely used in real-world backend systems for secure and scalable file uploads.

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