Backblaze B2

pnpm add @struktoai/mirage-node

import { BackblazeResource, MountMode, Workspace } from '@struktoai/mirage-node'

const b2 = new BackblazeResource({
  bucket: process.env.B2_BUCKET!,
  region: process.env.B2_REGION!,
  accessKeyId: process.env.B2_ACCESS_KEY_ID!,
  secretAccessKey: process.env.B2_SECRET_ACCESS_KEY!,
})

const ws = new Workspace({ '/bucket/': b2 }, { mode: MountMode.READ })
const res = await ws.execute('ls /bucket/')
console.log(res.stdoutText)

pnpm add @struktoai/mirage-browser

import {
  CopyObjectCommand,
  DeleteObjectCommand,
  GetObjectCommand,
  HeadObjectCommand,
  ListObjectsV2Command,
  PutObjectCommand,
  S3Client,
} from '@aws-sdk/client-s3'
import { getSignedUrl } from '@aws-sdk/s3-request-presigner'

const REGION = process.env.B2_REGION!

const client = new S3Client({
  region: REGION,
  endpoint: `https://s3.${REGION}.backblazeb2.com`,
  credentials: {
    accessKeyId: process.env.B2_ACCESS_KEY_ID!,
    secretAccessKey: process.env.B2_SECRET_ACCESS_KEY!,
  },
})
const BUCKET = process.env.B2_BUCKET!

app.post('/presign/b2', async (req, res) => {
  const { path, op, opts } = req.body
  const key = path.replace(/^\/+/, '')
  const ttl = typeof opts?.ttlSec === 'number' ? opts.ttlSec : 300
  let cmd
  switch (op) {
    case 'GET':    cmd = new GetObjectCommand({ Bucket: BUCKET, Key: key }); break
    case 'PUT':    cmd = new PutObjectCommand({ Bucket: BUCKET, Key: key, ContentType: opts?.contentType }); break
    case 'HEAD':   cmd = new HeadObjectCommand({ Bucket: BUCKET, Key: key }); break
    case 'DELETE': cmd = new DeleteObjectCommand({ Bucket: BUCKET, Key: key }); break
    case 'LIST':   cmd = new ListObjectsV2Command({
      Bucket: BUCKET,
      Prefix: opts?.listPrefix,
      Delimiter: opts?.listDelimiter,
      ContinuationToken: opts?.listContinuationToken,
    }); break
    case 'COPY':   cmd = new CopyObjectCommand({
      Bucket: BUCKET,
      Key: key,
      CopySource: `${BUCKET}/${opts?.copySource}`,
    }); break
  }
  res.json({ url: await getSignedUrl(client, cmd, { expiresIn: ttl }) })
})

import { BackblazeResource, MountMode, Workspace } from '@struktoai/mirage-browser'

const b2 = new BackblazeResource({
  bucket: 'my-bucket',
  region: 'us-west-004',
  presignedUrlProvider: async (path, op, opts) => {
    const r = await fetch('/presign/b2', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ path, op, opts }),
    })
    const { url } = await r.json()
    return url
  },
})

const ws = new Workspace({ '/bucket/': b2 }, { mode: MountMode.READ })

b2 bucket update my-bucket \
  --cors-rules '[{"corsRuleName":"mirage","allowedOrigins":["http://localhost:5173","https://app.example.com"],"allowedOperations":["s3_get","s3_put","s3_head","s3_delete","s3_post"],"allowedHeaders":["*"],"exposeHeaders":["etag","content-length","content-type","last-modified"],"maxAgeSeconds":3000}]'