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Amazon S3 is the most widely used object storage service in the world, providing 99.999999999% (11 nines) durability and virtually unlimited storage capacity. It offers multiple storage classes for cost optimization, lifecycle policies, versioning, and deep integration with the entire AWS ecosystem. S3 is the backbone for static website hosting, data lakes, and backup infrastructure.
Handle user file uploads with pre-signed URLs that let clients upload directly to S3, bypassing your server, with automatic virus scanning and thumbnail generation via Lambda.
Host single-page applications and static sites on S3 with CloudFront CDN distribution for global low-latency delivery.
Store raw and processed data in S3 as the foundation for analytics pipelines, with lifecycle policies that automatically tier data to cheaper storage classes.
import { S3Client, PutObjectCommand } from "@aws-sdk/client-s3";import { getSignedUrl } from "@aws-sdk/s3-request-presigner";const s3 = new S3Client({ region: process.env.AWS_REGION });export async function createUploadUrl(key: string, contentType: string) {const command = new PutObjectCommand({Bucket: process.env.S3_BUCKET_NAME!,Key: key,ContentType: contentType,});const url = await getSignedUrl(s3, command, { expiresIn: 3600 });return { uploadUrl: url, key, expiresIn: 3600 };}
Seamless integration, great documentation. Set up in under 10 minutes.
2 days ago
Works well for our use case. Would love to see more webhook event types.
1 week ago
Excellent compliance coverage. HIPAA audit trail works perfectly.
2 weeks ago
| Key | Description | Example |
|---|---|---|
| AWS_ACCESS_KEY_ID | AWS IAM access key ID | AKIAIOSFODNN7EXAMPLE |
| AWS_SECRET_ACCESS_KEY | AWS IAM secret access key | wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY |
| AWS_REGION | AWS region for your S3 bucket | us-east-1 |
| S3_BUCKET_NAME | Name of your S3 bucket | my-app-uploads |
AWS S3 is the industry standard for object storage with 11 nines of durability and virtually unlimited scale. It provides multiple storage classes for cost optimization, pre-signed URLs for secure direct uploads, and deep integration with Lambda, CloudFront, and the broader AWS ecosystem. Choose S3 when you need maximum reliability, compliance certifications, or AWS ecosystem integration.