Storage

Storage

The storage module provides a unified API for file storage. Store files locally during development and switch to S3 or R2 for production without touching your upload or retrieval logic.

Import

import { createStorage } from '@loewen-digital/fullstack/storage'

Basic usage

import { createStorage } from '@loewen-digital/fullstack/storage'

const storage = createStorage({
  driver: 'local',
  local: { root: './uploads' },
})

// Store a file
await storage.put('avatars/alice.png', imageBytes)

// Check existence
const exists = await storage.exists('avatars/alice.png') // true

// Retrieve a file as a stream
const stream = await storage.get('avatars/alice.png')

// Get a public URL
const url = await storage.getUrl('avatars/alice.png')

// Delete a file
await storage.delete('avatars/alice.png')

// List files by prefix
const files = await storage.list('avatars/')

Handling file uploads

const formData = await request.formData()
const file = formData.get('avatar') as File

const key = `avatars/${crypto.randomUUID()}.${file.name.split('.').pop()}`
await storage.put(key, await file.arrayBuffer())

const url = await storage.getUrl(key)

Production: S3 driver

const storage = createStorage({
  driver: 's3',
  s3: {
    bucket: process.env.S3_BUCKET!,
    region: process.env.AWS_REGION!,
    accessKeyId: process.env.AWS_ACCESS_KEY_ID!,
    secretAccessKey: process.env.AWS_SECRET_ACCESS_KEY!,
  },
})

Production: Cloudflare R2

const storage = createStorage({
  driver: 'r2',
  r2: {
    bucket: process.env.R2_BUCKET!,
    accountId: process.env.CF_ACCOUNT_ID!,
    accessKeyId: process.env.R2_ACCESS_KEY_ID!,
    secretAccessKey: process.env.R2_SECRET_ACCESS_KEY!,
    publicUrl: process.env.R2_PUBLIC_URL, // optional CDN URL
  },
})

Driver options

Driver	Description
local	Writes files to a local directory. Good for development.
s3	Amazon S3 or any S3-compatible service. Requires @aws-sdk/client-s3.
r2	Cloudflare R2 via S3-compatible API. Requires @aws-sdk/client-s3.
memory	In-process Map. Useful for tests.

Config options

Option	Type	Default	Description
driver	'local' | 's3' | 'r2' | 'memory'	—	Storage driver
local.root	string	'./storage'	Root directory for local files
local.baseUrl	string	—	Base URL for getUrl() with local driver
s3.bucket	string	—	S3 bucket name
s3.region	string	—	AWS region
s3.accessKeyId	string	—	AWS access key ID
s3.secretAccessKey	string	—	AWS secret access key