Heroku Buildpack for Flutter

Automate your deployments on Heroku easily.

🔨 Setup

Add this Buildpack in your Heroku app

In dashboard:

You can copy the link of this repository and paste it in buildpacks or write diezep/flutter and will be added automatically.

In Heroku CLI:

$ heroku buildpacks:set diezep/flutter -a <Heroku App name>

Optional

You can add optional environment variables to customize the deployment of your project but nothing is required, all are optional.

🚧 Environment variables:

All variables were built following the structure FLUTTER_VARNAME to identified easily in Heroku configurations. If you want to use some variable, remember use the structure following to the variable.

Variable	Type	Default	Description
CLEANUP	boolean	true	Remove uneccessary files of your project after the compile.
VERSION	string	Last version in stable channel.	The name of the version you want to use to compile the project.
BUILD	string	flutter build web --release --quiet	Customize the command to compile the project.

Set variable

Example of setting CLEANUP var in Heroku CLI:

$ heroku config:set FLUTTER_CLEANUP=true -a project-name

Example

The next image is an example of setting environment variables following the structure mentioned above :

📝 Final note

This buildpack is unofficial that means i don't have any conection with Heroku or Google from Flutter developer team . This repository was made as a hobby, i'm always interested in learn new things, this is one demostration of that :)

Recently, @ludwiktrammer developed a lighter version of this buildpack with some improvements, if you are having problems with size of project or you are using Heroku CI, i invite you to test it. here's the repo