multer-oss

multer upload files to aliyun oss directly.

:star: Features

• support upload files to oss
• support reduce jpeg, jpg and png size automatically
• support es7 features async and await
• support compressed by gzip by default

:tada: Install

npm install multer-oss-new

:rocket: Usage

init oss storage

const OSSStorage = require('multer-oss-new')
const zlib = require('zlib')
const storage = new OSSStorage({
  oss: { // required
    region: 'oss-region',
    internal: false,
    accessKeyId: 'access-key-id',
    accessKeySecret: 'access-key-secret',
    bucket: 'bucket'
  },
  destination: async (req, file, ossClient) => {
    return '' // return destination folder path, optional,  '' is default value
  },
  filename: async (req, file, ossClient) => {
    return file.originalname // return file name, optional, file.originalname is default value
  },
  stream: async (req, file, ossClient) => {
    return file.stream.pipe(zlib.createGzip()) // compress strem in gzip
  },
  options: async (req, file, ossClient) => { // read more https://www.npmjs.com/package/ali-oss#putstreamname-stream-options
    return {
      contentLength: file.size,
      headers: {
        'Content-Encoding': gzip,
        'Content-Disposition': file.originalname,
        'Expires': 3600000 // in ms
      }
    }
  }
})

if you already have an oss client, you can pass it to opt directly

const OSS = require('ali-oss')
const OSSStorage = require('multer-oss-new')
const zlib = require('zlib')

const ossClient = new OSS({
  region: 'oss-region',
  internal: false,
  accessKeyId: 'access-key-id',
  accessKeySecret: 'access-key-secret',
  bucket: 'bucket'
})
const storage = new OSSStorage({
  client: ossClient, // using oss client that already exists
  destination: async (req, file, ossClient) => {
    return '' // return destination folder path, optional,  '' is default value
  },
  filename: async (req, file, ossClient) => {
    return file.originalname // return file name, optional, file.originalname is default value
  },
  stream: async (req, file, ossClient) => {
    return file.stream.pipe(zlib.createGzip()) // compress strem in gzip
  },
  options: async (req, file, ossClient) => { // read more https://www.npmjs.com/package/ali-oss#putstreamname-stream-options
    return {
      contentLength: file.size,
      headers: {
        'Content-Encoding': gzip,
        'Expires': 3600000 // in ms
      }
    }
  }
})

:kissing_heart: Full Examples

Full examples for using multer-oss with express, multer

const bodyParser = require('body-parser')
const express = require('express')
const http = require('http')
const multer = require('multer')
const OSSStorage = require('multer-oss-new')
const zlib = require('zlib')
const app = express()
const server = http.createServer(app)
const storage = new OSSStorage({
  oss: { // required
    region: 'oss-region',
    internal: false,
    accessKeyId: 'access-key-id',
    accessKeySecret: 'access-key-secret',
    bucket: 'bucket' // you could using all oss option in ali-oss pacakge
  },
  destination: async (req, file, ossClient) => {
    return '' // return destination folder path, optional,  '' is default value
  },
  filename: async (req, file, ossClient) => {
    return file.originalname // return file name, optional, file.originalname is default value
  },
  stream: async (req, file, ossClient) => {
    return file.stream.pipe(zlib.createGzip()) // compress strem in gzip
  },
  options: async (req, file, ossClient) => {
    return {
      contentLength: file.size,
      headers: {
        'Content-Encoding': gzip,
        'Expires': 3600000 // in ms
      }
    }
  }
})
app.use(bodyParser.json())
app.use(bodyParser.urlencoded({ extended: true }))
app.use('/upload', multer({ storage })) // for more multer usage, you could refrence multer document
app.use((error, req, res, next) => {
  res.status(500).json({isError: true, error})
})
app.use((req, res) => {
  return res.status(404).json({isError: true, error: 'Router NOT FOUNDED'})
})
server.listen(8000, err => {
  if(err) return console.error('app start failed')
  console.info('app start at 8000')
})

License

MIT