Discussion on "File Uploads in Next.js: S3 Presigned URLs, Server Actions, and Secure Validation"

Sumeet Shroff · 2026-01-15T16:00:06.297Z

Table of Contents 1. Why this approach 2. High-level flow 3. Secure validation checklist (principles) 4. Comparison: Direct upload vs presigned URL vs proxy upload 5. Implementation details in Next.js 6. Server-side (Next.js Server Action or API rou...

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File Uploads in Next.js: S3 Presigned URLs, Server Actions, and Secure Validation

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