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Home / Android How to Upload Media File to S3

Android How to Upload Media File to S3

Using AWS S3 to Store Static Assets and File Uploads

Last updated Feb 15, 2022

Tabular array of Contents

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

Amazon Simple Storage Service (S3) is a durable and available store, ideal for storing application content similar media files, static assets, and user uploads.

Storing static files elsewhere is crucial for Heroku apps since dynos have an imperceptible filesystem. Whenever you replace a dyno or when it restarts, which happens daily, all files that aren't role 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 account, run into the Bucketeer add-on.

Overview

All files sent to S3 get stored in a saucepan. Buckets act as a top-level container, much like a directory, and its proper name must be unique across all of S3. A single bucket typically stores the files, avails, and uploads for an application. An Access Primal ID and a Hush-hush Access Key govern access to the S3 API.

Setting Up S3 for Your Heroku App

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

Configure Credentials

Y'all can find your S3 credentials in My Security Credentials department of AWS.

Never commit your S3 credentials to version command. Set them in your config vars instead.

Utilise the heroku config:set to set both keys:

            $ heroku config:set AWS_ACCESS_KEY_ID=MY-ACCESS-ID AWS_SECRET_ACCESS_KEY=MY-Admission-KEY Calculation config vars and restarting app... done, v21   AWS_ACCESS_KEY_ID     => MY-Access-ID   AWS_SECRET_ACCESS_KEY => MY-Admission-Cardinal

Proper noun Your Bucket

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

To create a saucepan, access the S3 section of the AWS Direction Panel and create a new bucket in the US Standard region:

Create new S3 bucket

Follow AWS' bucket naming rules to ensure maximum interoperability.

Store the bucket name in a config var to requite your application access to its value:

            $ heroku config:set S3_BUCKET_NAME=case-app-assets Adding config vars and restarting app... done, v22   S3_BUCKET_NAME     => instance-app-assets

Manually Uploading Static Assets

You can manually add static assets such equally videos, PDFs, Javascript, CSS, and image files using the command line or the Amazon S3 panel.

Uploading Files From a Heroku App

There are two approaches to processing and storing file uploads from a Heroku app to S3: direct and laissez passer-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, it tin can be more complex to implement. It too limits the ability to change files before storing them in S3.

Laissez passer-Through Uploads

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

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

Language-Specific Guides

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

Language/Framework Tutorials
Red/Track
  • Straight to S3 Prototype Uploads in Rails
Node.js
  • Direct to S3 File Uploads in Node.js
Python
  • Direct to S3 File Uploads in Python
Java
  • Uploading Files to S3 in Coffee with Play 2
PHP
  • Uploading Files to S3 in PHP

Referring to Your Assets

Yous can use your assets' public URLs, such as http://s3.amazonaws.com/bucketname/filename, in your application'southward code. S3 straight serves these files, freeing upwardly your application to serve merely dynamic requests.

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

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