uploading to heroku Aws::S3::Errors::NoSuchBucket: The specified bucket does not exist

• App Performance
• Using AWS S3 to Store Static Assets and File Uploads

Using AWS S3 to Store Static Assets and File Uploads

English — 日本語に切り替える

Final updated February 15, 2022

Table of Contents

• Overview
• Setting Upwardly S3 for Your Heroku App
• Manually Uploading Static Assets
• Uploading Files From a Heroku App
• Language-Specific Guides
• Referring to Your Assets

Amazon Uncomplicated Storage Service (S3) is a durable and available shop, ideal for storing application content like media files, static avails, and user uploads.

Storing static files elsewhere is crucial for Heroku apps since dynos have an ephemeral filesystem. Whenever you lot supervene upon a dyno or when information technology restarts, which happens daily, all files that aren't part of your application's slug are lost. Use a storage solution like S3 to offload the storage of static files from your app.

To add S3 to your app without creating an AWS business relationship, see the Bucketeer improver.

Overview

All files sent to S3 go stored in a bucket. Buckets human activity every bit a top-level container, much like a directory, and its name must be unique beyond all of S3. A unmarried bucket typically stores the files, assets, and uploads for an awarding. An Access Primal ID and a Cloak-and-dagger Admission Fundamental govern access to the S3 API.

Setting Up S3 for Your Heroku App

Enabling an awarding to use S3 requires that the application have access to your AWS credentials and the name of the bucket to shop files.

Configure Credentials

You can observe your S3 credentials in My Security Credentials section of AWS.

Never commit your S3 credentials to version control. Prepare them in your config vars instead.

Use the heroku config:fix to gear up both keys:

            $ heroku config:set AWS_ACCESS_KEY_ID=MY-ACCESS-ID AWS_SECRET_ACCESS_KEY=MY-ACCESS-KEY Adding config vars and restarting app... washed, v21   AWS_ACCESS_KEY_ID     => MY-Admission-ID   AWS_SECRET_ACCESS_KEY => MY-Access-Primal                      

Name Your Bucket

Create your S3 bucket in the same region as your Heroku app to accept advantage of AWS's free in-region data transfer rates.

To create a bucket, access the S3 section of the AWS Management Console and create a new bucket in the United states of america Standard region:

Follow AWS' bucket naming rules to ensure maximum interoperability.

Store the bucket name in a config var to give your awarding access to its value:

            $ heroku config:set S3_BUCKET_NAME=instance-app-assets Calculation config vars and restarting app... washed, v22   S3_BUCKET_NAME     => example-app-assets                      

Manually Uploading Static Assets

You lot can manually add together static avails such as videos, PDFs, Javascript, CSS, and image files using the control line or the Amazon S3 console.

Uploading Files From a Heroku App

There are ii approaches to processing and storing file uploads from a Heroku app to S3: direct and pass-through. See the language guides for specific instructions.

Straight Uploads

In a direct upload, a file uploads to your S3 bucket from a user'southward browser, without first passing through your app. Although this method reduces the amount of processing your awarding needs to perform, information technology can be more complex to implement. It also limits the ability to modify files before storing them in S3.

Pass-Through Uploads

In a pass-through upload, a file uploads to your app, which in plough uploads it to S3. This method enables yous to perform preprocessing on user uploads before yous push them to S3. Depending on your chosen language and framework, this method can cause latency issues for other requests while the upload takes place. Use background workers to process uploads to gratuitous up your app.

It's recommended to utilize background workers for uploading files. Large files uploads in single-threaded, non-evented environments, like Rails, block your application's web dynos and can cause request timeouts. EventMachine, Node.js and JVM-based languages are less susceptible to such issues.

Linguistic communication-Specific Guides

Hither are language-specific guides to handling uploads to S3:

Language/Framework	Tutorials
Cherry-red/Track	Straight to S3 Image Uploads in Runway
Node.js	Directly to S3 File Uploads in Node.js
Python	Directly to S3 File Uploads in Python
Java	Uploading Files to S3 in Java with Play ii
PHP	Uploading Files to S3 in PHP

Referring to Your Avails

You lot can utilise your avails' public URLs, such as http://s3.amazonaws.com/bucketname/filename, in your application'southward lawmaking. S3 directly serves these files, freeing upward your application to serve just dynamic requests.

For faster page loads, consider using a content delivery service, such as Amazon Cloudfront to serve your static avails instead.

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Source: https://devcenter.heroku.com/articles/s3

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