npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@adobe/aio-lib-files

v4.1.0

Published

An abstraction on top of blob cloud storage exposing a file like API

Downloads

19,246

Readme

Version Downloads/week Node.js CI License Codecov Coverage

Adobe I/O Lib Files

A Node JavaScript abstraction on top of cloud blob storages exposing a file-system like API.

You can initialize the SDK with your Adobe I/O Runtime (a.k.a OpenWhisk) credentials.

Alternatively, you can bring your own cloud storage keys. Note however, that as of now we only support Azure Blob Storage.

Please note that currently you must be a customer of Adobe Developer App Builder to use this library. App Builder is a complete framework that enables enterprise developers to build and deploy custom web applications that extend Adobe Experience Cloud solutions and run on Adobe infrastructure.

Install

npm install @adobe/aio-lib-files

Use

  const filesLib = require('@adobe/aio-lib-files')

  // init
  // init sdk using OpenWhisk credentials
  const files = await filesLib.init({ ow: { namespace, auth } })
  // init when env vars __OW_API_KEY and __OW_NAMESPACE are set (e.g. when running in an OpenWhisk action)
  const files = await filesLib.init()
  // or if you want to use your own cloud storage account
  const files = await filesLib.init({ azure: { storageAccount, storageAccessKey, containerName } })

  // write private file
  await files.write('mydir/myfile.txt', 'some private content')

  // write publicly accessible file
  await files.write('public/index.html', '<h1>Hello World!</h1>')

   // get file url
  const props = await files.getProperties('public/index.html')
  console.log('props = ', props)
  /*
  props =  { name: 'public/index.html',
    creationTime: 2020-12-09T19:49:58.000Z,
    lastModified: 2020-12-09T19:49:58.000Z,
    etag: '"0x8D89C7B9BB75A6F"',
    contentLength: 21,
    contentType: 'text/html',
    isDirectory: false,
    isPublic: true,
    url:
    'https://jestaiotest.blob.core.windows.net/readme-public/public%2Findex.html' }
  */

  // list all files
  await files.list('/') // ['mydir/myfile.txt', 'public/index.html']
  /*
  list =  [ { name: 'mydir/myfile.txt',
    creationTime: 2020-12-09T19:49:57.000Z,
    lastModified: 2020-12-09T19:49:57.000Z,
    etag: '0x8D89C7B9BB165F8',
    contentLength: 20,
    contentType: 'text/plain',
    isDirectory: false,
    isPublic: false,
    url:
     'https://jestaiotest.blob.core.windows.net/readme/mydir%2Fmyfile.txt' },
  { name: 'public/index.html',
    creationTime: 2020-12-09T19:49:58.000Z,
    lastModified: 2020-12-09T19:49:58.000Z,
    etag: '0x8D89C7B9BB75A6F',
    contentLength: 21,
    contentType: 'text/html',
    isDirectory: false,
    isPublic: true,
    url:
     'https://jestaiotest.blob.core.windows.net/readme-public/public%2Findex.html' } ]
  */

  // read
  const buffer = await files.read('mydir/myfile.txt')
  buffer.toString() // 'some private content'

  // pipe read stream to local file (consider using copy below)
  const rdStream = await files.createReadStream('mydir/myfile.txt')
  const stream = rdStream.pipe(fs.createWriteStream('my-local-file.txt'))
  stream.on('finish', () => console.log('done!'))

  // write read stream to remote file (consider using copy below)
  const rdStream = fs.createReadStream('my-local-file.txt')
  await files.write('my/remote/file.txt', rdStream)

  // delete files in 'my/remote/' dir
  await files.delete('my/remote/')
  // delete all public files
  await files.delete('public/')
  // delete all files including public
  await files.delete('/')

  // copy - higher level utility (works likes scp)
  // works for files and directories both remotely and locally, uses streams under the hood
  /// upload a single file
  await files.copy('my-static-app/index.html', 'public/my-static-app/index.html', { localSrc: true })
  /// upload local directory recursively
  await files.copy('my-static-app/', 'public/', { localSrc: true })
  /// download to local directory recursively (works for files as well)
  await files.copy('public/my-static-app/', 'my-static-app-copy', { localDest: true })
  /// copy remote directories around (works for files as well)
  await files.copy('public/my-static-app/', 'my/private/folder')

  // Share private files
  const presignUrl = await files.generatePresignURL('mydir/myfile.txt', { expiryInSeconds: 60 })

  //Share private files with read, write, delete permissions
  const rwdPresignUrl = await files.generatePresignURL('mydir/myfile.txt', { expiryInSeconds: 60, permissions: 'rwd' })

Presigned URL types and usage

File SDK supports two types of presigned URLs to access a file

  1. External - CDN based URLs which can be accessed from anywhere, assuming right pre-sign permissions for private files. You can use this type of URLs to provide access to your files to external systems and APIs for remote compute use-cases.
  2. Internal - Direct URLs to file storage. These URLs work only if used within Adobe I/O Runtime actions. You can use this type of URLs to chain worker actions that are processing the same file from different Runtime namespaces. As there is no CDN indirection, using this type of URL will improve the performance of your Runtime actions.

Files.getProperties returns both URL types (external as url, and internal as internalUrl) for a given file path Files.generatePresignURL supports UrlType as option to generate presign URL of given type

See usage example below -

  const  { init, UrlType }  = require('@adobe/aio-lib-files')
  const files = await init()

  // getProperties will return both internal and external URLs in return Object
  const props = files.getProperties('public/my-static-app/index.html')

  //generate presign URL with internal URLType
  const internalPresignUrl = await files.generatePresignURL('mydir/myfile.txt', { expiryInSeconds: 60, permissions: 'rwd', urltype: UrlType.internal })

Explore

goto API

Debug

set DEBUG=@adobe/aio-lib-files* to see debug logs.

Adobe I/O Files Store Consistency Guarantees

Strong consistency is guaranteed for all operations and across instances of the files sdk (returned by filesLib.init()).

Troubleshooting

"[StateLib:ERROR_INTERNAL] unknown error response from provider with status: unknown"

  • when using @adobe/aio-lib-files in an action bundled with webpack please make sure to turn off minification and enable resolving of es6 modules. Add the following lines to your webpack config:
  optimization: {
    minimize: false
  },
  resolve: {
    extensions: ['.js'],
    mainFields: ['main']
  }

Contributing

Contributions are welcomed! Read the Contributing Guide for more information.

Licensing

This project is licensed under the Apache V2 License. See LICENSE for more information.