Deploy an app to Fly.io

• You've created an app using Shopify CLI, or you've migrated your app to work with Shopify CLI.

• You have a Fly.io account and can create apps on it.

Create or link your app to an app.toml file. We recommend that developers have one configuration for development, and a separate one for production. That way, you can continue to develop your app after deploying it, without affecting your production environment.

1. Either create a new configuration, or use an existing one:

2. Get the necessary environment variables to deploy your app:

3. Note down the SHOPIFY_API_KEY, SHOPIFY_API_SECRET, and SCOPES values. You'll need to set them as environment variables before you can run your deployed app.

Create a new Fly app using the flyctl tool.

1. Install flyctl and sign up for Fly.io. For detailed steps, refer to the Fly.io docs.

2. Run the following command to create a new app in Fly.io and create a fly.toml file:

This command creates an app container, but won't deploy it. You can deploy after you finish setting up the environment.

Configure your Fly.io app to run your app code and communicate with Shopify.

Create a container running your preferred database, then make sure your Prisma schema file points to it. For databases such as PostgreSQL or MySQL, you can use the DATABASE_URL environment variable in your schema to point to your container in different environments.

Refer to these important considerations for setting up your database.

In a terminal, set the API secret for your app, using the SHOPIFY_API_SECRET from the shopify app env show command you ran before:

Before running the app on your hosting provider, you'll need to update your Shopify settings by deploying your TOML file using Shopify CLI.

1. In the shopify.app.*.toml file for your deployment environment, set application_url to the same as the SHOPIFY_APP_URL environment variable:

2. Deploy your configuration to apply the changes to Shopify:

Your app is ready to deploy now. You can do that following these steps:

1. Deploy the app to Fly.io. You can do that using the deploy command:

2. Visit your Fly.io dashboard, and check your logs to verify that the app started as expected.

After you update your app URLs in the Partner Dashboard, you can test your app in a development store to make sure that it's configured correctly.

1. In the Partner Dashboard, go to your app's Overview page.
2. In the Test your app section, click Select store and choose a store to test the app.

As you continue developing your app, you can re-deploy it with the following steps:

1. Select your production app with Shopify CLI:

2. Deploy your app configuration and extensions, if you made any changes:

3. Trigger a new deploy in Fly.io: