multer-gcs-storage

Multer GCS (Google cloud storage) Storage

GCS storage for Multer.

Installation

npm install --save multer-gcs-storage

Usage

import { Storage } from "@google-cloud/storage";
import express from 'express';
import multer from 'multer';
import multerGCSStorage from 'multer-minio-storage';

const app = express();
const storageClient = new Storage({ projectId: config.gc.projectId, keyFilename: config.gc.keyFilename });

const upload = multer({
  storage: multerGCSStorage({
    gcsClient: storageClient,
    bucket: 'some-bucket',
    metadata: function (req, file, cb) {
      cb(null, {fieldName: file.fieldname});
    },
    key: function (req, file, cb) {
      cb(null, Date.now().toString())
    }
  })
})

app.post('/upload', upload.array('photos', 3), function(req, res, next) {
  res.send('Successfully uploaded ' + req.files.length + ' files!')
})

File information

Each file contains the following information exposed by multer-gcs-storage:

Key	Description	Note
size	Size of the file in bytes
bucket	The bucket used to store the file	MulterGCSStorage
key	The name of the file	MulterGCSStorage
acl	Access control for the file	MulterGCSStorage
contentType	The mimetype used to upload the file	MulterGCSStorage
metadata	The metadata object to be sent to Minio	MulterGCSStorage
location	The Minio url to access the file	MulterGCSStorage
etag	The etagof the uploaded file in Minio	MulterGCSStorage
contentDisposition	The contentDisposition used to upload the file	MulterGCSStorage
storageClass	The storageClass to be used for the uploaded file in Minio	MulterGCSStorage
versionId	The versionId is an optional param returned by Minio for versioned buckets.	MulterGCSStorage

Testing

The tests mock all access to S3 and can be run completely offline.

npm test