Object storage (Cloudflare R2, presigned transfer)

Generated from mcp/patterns.registry.json — do not edit by hand; change the registry and run bun run patterns:build.

Index card — the docs below are the canonical explanation; deep-tier pattern pages additionally carry invariants and emulation notes.

Category: Databases & Storage · Tier: light · Risk: medium — external managed service (Cloudflare R2)

S3-compatible object storage on Cloudflare R2, accessed via @aws-sdk/client-s3 with presigned URLs for direct client uploads and downloads.

When to use: Use when the app needs to store or serve user files without routing large payloads through the server.

Docs

• docs/stack/data/r2.md (GitHub · GitLab)

Code

• src/lib/server/store/ (GitHub · GitLab)

Proof

• /showcases/db/storage/connection
• /showcases/db/storage/objects
• /showcases/db/storage/transfer

Machine-readable record: databases-object-storage in mcp/patterns.registry.json.