Multer Azure Storage

Multer Azure Storage provides a Storage for multer allowing for saving data to Blob Storage.

Installation

npm install multer-azure-storage

or

yarn add multer-azure-storage

Usage

Basic usage example:

var multer = require('multer')
var MulterAzureStorage = require('multer-azure-storage')
var upload = multer({
  storage: new MulterAzureStorage({
    azureStorageConnectionString: 'DefaultEndpointsProtocol=https;AccountName=mystorageaccount;AccountKey=mykey;EndpointSuffix=core.windows.net',
    containerName: 'photos',
    containerSecurity: 'blob'
  })
})

Then use upload as described in multer documentation

File information

Each file added using Multer Azure Storage contains the following information:

Key	Description	Note
fieldname	Field name specified in the form	added by multer
originalname	Name of the file on the user's computer	added by multer
encoding	Encoding type of the file	added by multer
mimetype	Mime type of the file	added by multer
blob	Name of created blob
container	Name of container in which blob was created
blobType	Type of blob	BlockBlob - From the result of call to azure's getBlobProperties() of blobService
size	Size of the blob	From the result of call to azure's getBlobProperties() of blobService
etag	Etag	From the result of call to azure's getBlobProperties() of blobService
metadata	Blob's metadata	From the result of call to azure's getBlobProperties() of blobService
url	Url to access the blob

Options

To setup the connection to Azure Storage either the connection string (azureStorageConnectionString) is required or the combination of storage account (azureStorageAccount) and access key (azureStorageAccessKey)

Using Azure storage connection string

Parameter Name	Type	Sample Value
azureStorageConnectionString	string	'DefaultEndpointsProtocol=https;AccountName=mystorageaccount;AccountKey=mykey;EndpointSuffix=core.windows.net'
containerName	string	'photos'
containerSecurity	string (optional)	'blob' or 'container', defaults to blob
fileName	function (optional)	function that receives a file reference and allows customization of the file name

Using Azure storage account name and access key

Parameter Name	Type	Sample Value
azureStorageAccessKey	string	'dcs@3asd@...' - Access Key related to your storage account
azureStorageAccount	string	'mystorageaccount'
containerName	string	'photos'
containerSecurity	string (optional)	'blob' or 'container', defaults to blob
fileName	function (optional)	function that receives a file reference and allows customization of the file name

For more information about the meaning of individual parameters please check Azure documentation on node.js integration.

Tests

Not implemented yet

License

MIT