How to Upload to Heroku From Command Line

• Add-ons
• All Add-ons
• Simple File Upload

This add together-on is operated by Bitmapped Designs LLC

Image uploading and resizing using a prebuilt S3 setup. No javascript required.

Simple File Upload

Last updated April 12, 2022

Tabular array of Contents

• Provisioning the improver
• View your dashboard
• Add javascript
• Add together a hidden input with class simple-file-upload
• Save the URL
• Security
• Migrating between plans
• Removing the add together-on
• Support

Simple File Upload is an add-on for providing direct epitome and file uploading to the cloud.

Adding direct uploads to an application allows you to offload the storage of static files from your app. This is crucial on Heroku, because your app's dynos take an imperceptible filesystem. This means that all files that aren't part of your application'south slug are lost whenever a dyno restarts or is replaced (this happens at to the lowest degree once daily).

Elementary File Upload uses directly uploads. In a direct upload, a file is uploaded to S3 from a user's browser, without outset passing through your app. This method is recommended by Heroku Dev Center hither. Elementary File Upload handles all of the straight upload processing for you. Yous do not need a deject storage business relationship. Simple File Upload provides a dropzone UI, allows your users to drop images or select images from a local filesystem, and returns a url of the image behind a CDN.

Provisioning the add-on

Unproblematic File Upload can be fastened to a Heroku awarding via the CLI:

A list of all plans available can be found here.

            $ heroku addons:create simple-file-upload -----> Adding uncomplicated-file-upload to abrupt-mountain-4005... done, v18 ($35/month)                      

After you provision Simple File Upload, the SIMPLE_FILE_UPLOAD_KEY config var is available in your app's configuration. Information technology contains the API key you will demand to access the service. You can confirm this via the heroku config:get control:

            $ heroku config:get SIMPLE_FILE_UPLOAD_KEY "arandomapikey1234"                      

Later y'all install Elementary File Upload, your application will be configured to fully integrate with the improver. The easiest fashion to get started is to admission the Dashboard for customized instructions.

View your dashboard

The Simple File Upload dashboard allows you to access your verbal script tag and see your current usage.

You tin access the dashboard via the CLI:

            $ heroku addons:open simple-file-upload Opening simple-file-upload for precipitous-mountain-4005                      

or by visiting the Heroku Dashboard and selecting the awarding in question. Select Simple File Upload from the Add-ons menu.

Add javascript

Add together the javascript to the head of your site.

            <script src="https://app.simplefileupload.com/buckets/[your API central here].js"></script>                      

Using React

Additionally, there is a React component for Simple File Upload called react-unproblematic-file-upload. Y'all tin can install it with npm or yarn:

            npm install react-unproblematic-file-upload                      

Add a subconscious input to your form with the class uncomplicated-file-upload. The add-on will adhere to this hidden input, and return the value of the dropped file in the value parameter of the subconscious input. This is the preferred method of implementation. Information technology provides a better user experience, and allows the existing file to be previewed in the drop box UI. If no class of unproblematic-file-upload is found, the widget will attach to existing course inputs of type file, described below.

Add a course input

Alternatively you can chose to have the widget attach to all existing form inputs of blazon file. This implementation replaces the file field html with a hidden input, so the value parameter doesn't persist between requests. The improver works past attaching to a grade input element and modifying its behavior and attributes.

HTML

To add a subconscious html input:

            <input type="subconscious" name="avatar_url" id="avatar_url" form="simple-file-upload">                      

The uploader works past populating the value parameter of the hidden input with the url of the dropped file.

            <input blazon="hidden" id="avatar_url" name="avatar_url" class="unproblematic-file-upload" value="https://files.simplefileupload.com/randomstring/filename.png">                      

Ruby on Rails grade helpers

If you lot are using Ruby on Rails with a model backed form equally below:

                          <%= form_with model: @user do |form| %>                      

Add the hidden field with a class of simple-file-upload

            <%= class.hidden_field :avatar_url, grade: "elementary-file-upload" %>                      

This will automatically create the html chemical element

            <input type="file" name="user[avatar_url]" id="user_avatar_url" class="unproblematic-file-upload">                      

If you are using Ruby on Rails without a model backed form you can use a hidden_field_tag helper:

            <%= hidden_field_tag "avatar_url" class="simple-file-upload" %>                      

which becomes the html element

                          <input type="file" name="avatar_url" id="avatar_url" class="simple-file-upload">                      

React

One time installed, you tin import and use the package. Once uploaded, the file will be available in the onSuccess handler.

            import { SimpleFileUpload } from 'react-simple-file-upload'    <SimpleFileUpload     apiKey="..."     onSuccess={handleFile}   />    function handleFile(url){     console.log('The URL of the file is ' + url)   }                      

Salvage the URL

Once your user drops a file, the file is immediately uploaded. The hidden input with class simple-file-upload's value is populated with the URL of the file.

Security

The files stored with Simple File Upload are publicly available to anyone with the URL. Security is provided through obscurity. Each file url includes a unique key, which makes guessing the URL challenging.

Migrating between plans

Use the heroku add-ons:upgrade control to migrate to a new plan.

            $ heroku add-ons:upgrade simple-file-upload:newplan -----> Upgrading simple-file-upload:newplan to sharp-mountain-4005... washed, v18 ($49/mo)        Your programme has been updated to: simple-file-upload:newplan                      

Removing the add-on

Y'all can remove Simple File Upload via the CLI:

This will destroy all associated data and cannot exist undone! Download all your files before destroying the add on!

            $ heroku add together-ons:destroy simple-file-upload -----> Removing simple-file-upload from sharp-mount-4005... done, v20 ($35/month)                      

Earlier removing Simple File Upload, you can export your data past downloading all files stored with Simple File Upload and storing them elsewhere.

Support

All Elementary File Upload support and runtime problems should be submitted via one of the Heroku Back up channels. Any not-support related issues or product feedback is welcome at support@simplefileupload.com.

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Source: https://devcenter.heroku.com/articles/simple-file-upload

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