Add default value to Context::scope parameter to make it optional

[zzooeeyy]

Description

Fixes:

• Why do we have to declare the scopes and api version on the ShopifyApp.configure if we already declare them on the .toml config file? shopify_app#1912

Background

The scope parameter was required as a part of the legacy OAuth flow (Authorization code grant). It's a required parameter during the ShopifyAPI::Context setup process. It can be set to [] or "".

We don't have to enforce scope in the setup with Shopify managed install since scopes are configured in the shopify.app.*.toml files already.

Solution

Making this field to have a default value so it can be omitted during setup.

How has this been tested?

• Linked a local version of shopify-api-ruby with my changes to my app
• Removed scope setup in the ShopifyAPI::Context.setup
• Start server an observe no errors

Configuration without scopes

Checklist:

• My commit message follow the pattern described in here
• I have performed a self-review of my own code.
• I have added tests that prove my fix is effective or that my feature works.
• I have updated the project documentation.
• I have added a changelog line.

[lizkenyon]

What is the functionality when an app is not using managed install, and they omit scopes? Is OAuth successful, and you just get the default store properties scope granted?

[zzooeeyy]

What is the functionality when an app is not using managed install, and they omit scopes? Is OAuth successful, and you just get the default store properties scope granted?

Yup if they omit scopes, shopify-api-ruby will default their "configuration" to be an empty list and request the auth code grant flow for installation with an empty list of scopes, and this will prompt the shop for the default "store data"

Here's an example request:

https://admin.shopify.com/store/mystore/oauth/authorize?client_id=this-is-a-valid-client_id&scope=&redirect_uri=https%3A%2F%2Fsomething-something-something-missions.trycloudflare.com%2Fapi%2Fauth%2Fcallback&state=P5F5J74FDCYREpy&grant_options%5B%5D=

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There's also gonna be another change in the shopify_app repo to also have a default value.

[lizkenyon]

Thanks @zzooeeyy ⭐