google-cloud-bucket
Advanced tools
Google Cloud Bucket is node.js package to add objects to a Google Cloud Bucket.
npm i google-cloud-bucket --save
Before using this package, you must first:
Have a Google Cloud Account.
Have a bucket in that Google Account.
Have a Service Account set up with the following 2 roles:
roles/storage.objectCreatorroles/storage.objectAdmin (only if you want to update access to object or create/delete buckets)roles/storage.admin (only if you want to update access to an entire bucket)Get the JSON keys file for that Service Account above
Save that JSON key into a service-account.json file. Make sure it is located under a path that is accessible to your app (the root folder usually).
const { join } = require('path')
const { client } = require('google-cloud-bucket')
const storage = client.new({
jsonKeyFile: join(__dirname, './service-account.json')
})
const someObject = {
firstname: 'Nicolas',
lastname: 'Dao',
company: 'Neap Pty Ltd',
city: 'Sydney'
}
// CREATING A BUCKET (This method will fail if your bucket name is not globally unique. You also need to the role 'roles/storage.objectAdmin')
storate.bucket('your-globally-unique-bucket-name').create()
.then(data => console.log(data))
// CREATING A BUCKET IN SPECIFIC LOCATION (default is US. A detailed list of all the locations can be found in the Annexes of this document)
storate.bucket('your-globally-unique-bucket-name').create({ location: 'australia-southeast1' })
.then(data => console.log(data))
// DELETING A BUCKET
storate.bucket('your-globally-unique-bucket-name').delete()
.then(data => console.log(data))
// ADDING AN OBJECT
storage.insert(someObject, 'your-bucket/a-path/filename.json') // insert an object into a bucket 'a-path/filename.json' does not need to exist
.then(() => storage.get('your-bucket/a-path/filename.json')) // retrieve that new object
.then(res => console.log(JSON.stringify(res, null, ' ')))
// ADDING A HTML PAGE WITH PUBLIC ACCESS (warning: Your service account must have the 'roles/storage.objectAdmin' role)
const html = `
<!doctype html>
<html>
<body>
<h1>Hello Giiiiirls</h1>
</body>
</html>`
storage.insert(html, 'your-bucket/a-path/index.html')
// UPLOADING AN IMAGE (we assume we have access to an image as a buffer variable called 'imgBuffer')
storage.insert(imgBuffer, 'your-bucket/a-path/image.jpg')
// GETTING BACK THE OBJECT
storage.get('your-bucket/a-path/filename.json').then(obj => console.log(obj))
// GETTING THE HTML BACK
storage.get('your-bucket/a-path/index.html').then(htmlString => console.log(htmlString))
// GETTING BACK THE IMAGE
// USE CASE 1 - Loading the entire buffer in memory
storage.get('your-bucket/a-path/image.jpg').then(imgBuffer => console.log(imgBuffer))
// USE CASE 2 - Loading the image on your filesystem
storage.get('your-bucket/a-path/image.jpg', { dst: 'some-path/image.jpg' })
.then(() => console.log(`Image successfully downloaded.`))
// USE CASE 3 - Piping the image buffer into a custom stream reader
const { Writable } = require('stream')
const customReader = new Writable({
write(chunk, encoding, callback) {
console.log('Hello chunk of image')
callback()
}
})
storage.get('your-bucket/a-path/image.jpg', { streamReader: customReader })
.then(() => console.log(`Image successfully downloaded.`))
// TESTING IF A FILE OR A BUCKET EXISTS
storage.exists('your-bucket/a-path/image.jpg')
.then(fileExists => fileExists ? console.log('File exists.') : console.log('File does not exist.'))
// LISTING ALL THE FILES METADATA WITH A FILEPATH THAT STARTS WITH SPECIFIC NAME
storage.list('your-bucket/a-path/')
.then(files => console.log(files))
The examples above demonstrate how to insert and query any storage. We've also included a variant of those APIs that are more focused on the bucket:
// THIS API:
storage.insert(someObject, 'your-bucket/a-path/filename.json')
// CAN BE REWRITTEN AS FOLLOW:
storage.bucket('your-bucket').object('a-path/filename.json').insert(someObject)
// THIS API:
storage.get('your-bucket/a-path/filename.json').then(obj => console.log(obj))
// CAN BE REWRITTEN AS FOLLOW:
storage.bucket('your-bucket').object('a-path/filename.json').get().then(obj => console.log(obj))
// THIS API:
storage.exists('your-bucket/a-path/image.jpg')
.then(fileExists => fileExists ? console.log('File exists.') : console.log('File does not exist.'))
// CAN BE REWRITTEN AS FOLLOW:
storage.bucket('your-bucket').object('a-path/image.jpg').exists()
.then(fileExists => fileExists ? console.log('File exists.') : console.log('File does not exist.'))
// THIS API:
storage.list('your-bucket/a-path/')
.then(files => console.log(files))
// CAN BE REWRITTEN AS FOLLOW:
storage.bucket('your-bucket').object('a-path/').list()
.then(files => console.log(files))
This allows to make any files publicly readable by anybody on the web. That's usefull if you want to host a website, or publish data (e.g., RSS feed).
Once your bucket is publicly readable, everyone can access it at this url: https://storage.googleapis.com/your-bucket/some-path/index.html
WARNING: If that bucket hosts files that hsould be accessible cross domain (e.g., an RSS feed), don't forget to also set up CORS (next section Configuring CORS On a Bucket).
const bucket = storage.bucket('your-bucket')
// TEST WHETHER A BUCKET IS PUBLIC OR NOT
bucket.isPublic().then(isPublic => isPublic ? console.log(`Bucket '${bucket.name}' is public`) : console.log(`Bucket '${bucket.name}' is not public`))
// MAKING A BUCKET PUBLICLY READABLE (warning: Your service account must have the 'roles/storage.admin' role)
// Once a bucket is public, all content added to it (even when omitting the 'public' flag) is public
bucket.addPublicAccess()
.then(({ publicUri }) => console.log(`Your web page is publicly available at: ${publicUri}`))
// REMOVING THE PUBLICLY READABLE ACCESS FROM A BUCKET (warning: Your service account must have the 'roles/storage.admin' role)
bucket.removePublicAccess()
// MAKING AN EXISTING OBJECT PUBLICLY READABLE (warning: Your service account must have the 'roles/storage.objectAdmin' role)
bucket.object('a-path/private.html').addPublicAccess()
.then(({ publicUri }) => console.log(`Your web page is publicly available at: ${publicUri}`))
// REMOVING THE PUBLICLY READABLE ACCESS FROM A FILE (warning: Your service account must have the 'roles/storage.objectAdmin' role)
bucket.object('a-path/private.html').removePublicAccess()
It is also possible to make a single file publicly readable in a single command when the file is created:
storage.insert(html, 'your-bucket/a-path/index.html', { public: true })
.then(({ publicUri }) => console.log(`Your web page is publicly available at: ${publicUri}`))
Once your file is publicly readable, everyone can access it at this url: https://storage.googleapis.com/your-bucket/a-path/index.html
WARNING: If that bucket hosts files that hsould be accessible cross domain (e.g., an RSS feed), don't forget to also set up CORS (next section Configuring CORS On a Bucket).
If your files are publicly readable on the web, they might not be accessible when referenced from other websites. To enable other websites to access your files, you will have to configure CORS on your bucket:
// CONFIGURE CORS ON A BUCKET (warning: Your service account must have the 'roles/storage.admin' role)
bucket.cors.setup({
origin: ['*'],
method: ['GET', 'OPTIONS', 'HEAD', 'POST'],
responseHeader: ['Authorization', 'Origin', 'X-Requested-With', 'Content-Type', 'Accept'],
maxAgeSeconds: 3600
})
.then(() => console.log(`CORS successfully set up on your bucket.`))
If you want to check if CORS has already been set up on a bucket:
bucket.cors.exists().then(yes => yes
? console.log(`CORS already set up on bucket '${bucket.name}'.`)
: console.log(`CORS not set up yet on bucket '${bucket.name}'.`))
You can also check if a specific CORS config exists:
bucket.cors.exists({
origin: ['*'],
method: ['GET', 'OPTIONS', 'HEAD', 'POST'],
responseHeader: ['Authorization', 'Origin', 'X-Requested-With', 'Content-Type', 'Accept'],
maxAgeSeconds: 3600
}).then(yes => yes
? console.log(`CORS already set up on bucket '${bucket.name}'.`)
: console.log(`CORS not set up yet on bucket '${bucket.name}'.`))
To remove CORS from a bucket:
bucket.cors.disable().then(() => console.log(`CORS successfully disabled on bucket '${bucket.name}'.`))
Networks errors (e.g. socket hang up, connect ECONNREFUSED) are a fact of life. To deal with those undeterministic errors, this library uses a simple exponential back off retry strategy, which will reprocess your read or write request for 10 seconds by default. You can increase that retry period as follow:
// Retry timeout for CHECKING FILE EXISTS
storage.exists('your-bucket/a-path/image.jpg', { timeout: 30000 }) // 30 seconds retry period timeout
// Retry timeout for INSERTS
storage.insert(someObject, 'your-bucket/a-path/filename.json', { timeout: 30000 }) // 30 seconds retry period timeout
// Retry timeout for QUERIES
storage.get('your-bucket/a-path/filename.json', { timeout: 30000 }) // 30 seconds retry period timeout
Single reagions are bucket locations that indicate that your data are replicated in multiple servers in that single region. Though it is unlikely that you would loose your data because all servers fail, it is however possible that a network failure brings that region inaccessbile. At this stage, your data would not be lost, but they would be unavailable for the period of that network outage. This type of storage is the cheapest.
Use this type of location if your data:
If the above limits are too strict for your use case, then you should probably use a Multi Regions.
| Location | Description |
|---|---|
| northamerica-northeast1 | Canada - Montréal |
| us-central1 | US - Iowa |
| us-east1 | US - South Carolina |
| us-east4 | US - Northern Virginia |
| us-west1 | US - Oregon |
| us-west2 | US - Los Angeles |
| southamerica-east1 | South America - Brazil |
| europe-north1 | Europe - Finland |
| europe-west1 | Europe - Belgium |
| europe-west2 | Europe - England |
| europe-west3 | Europe - Germany |
| europe-west4 | Europe - Netherlands |
| asia-east1 | Asia - Taiwan |
| asia-east2 | Asia - Hong Kong |
| asia-northeast1 | Asia - Japan |
| asia-south1 | Asia - Mumbai |
| asia-southeast1 | Asia - Singapore |
| australia-southeast1 | Asia - Australia |
| asia | Asia |
| us | US |
| eu | Europe |
Multi regions are bucket locations where your data are not only replicated in multiple servers in the same regions, but also replicated across multiple locations (e.g., asia will replicate your data across Taiwan, Hong Kong, Japan, Mumbai, Singapore, Australia). That means that your data are:
| Location | Description |
|---|---|
| asia | Asia |
| us | US |
| eu | Europe |
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Copyright (c) 2018, Neap Pty Ltd. All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NEAP PTY LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
FAQs
Nodejs package to manage Google Cloud Buckets and its objects.
The npm package google-cloud-bucket receives a total of 117 weekly downloads. As such, google-cloud-bucket popularity was classified as not popular.
We found that google-cloud-bucket demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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