Fix the issue "Get Current Session ID process from Post Purchase Extension Token"

[jonaswebdev]

WHY are these changes introduced?

Shopify issues an incomplete token/JWT payload from Checkout::PostPurchase::ShouldRender & Checkout::PostPurchase::Render methods on the Post-Purchase Extension.

The "dest" attribute is missing on the JWT payload and should contain the shop domain, so it throws an exception on the Get Current Session ID on the OAuth Process (Class: Shopify\Auth\OAuth, Method: getCurrentSessionId).

I related more details here.

WHAT is this pull request doing?

Workaround to get the shop domain from "input_data" attribute from JWT.

Type of change

• Patch: Bug (non-breaking change which fixes an issue)
• Minor: New feature (non-breaking change which adds functionality)
• Major: Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

• I have added a changelog entry, prefixed by the type of change noted above
• I have added/updated tests for this change
• I have updated the documentation for public APIs from the library (if applicable)

[jonaswebdev]

I have signed the CLA!

[jonaswebdev]

Hi @rafaelstz I invited you to my repository to you have "write access", please review, thank you

[rafaelstz]

Hi @jonaswebdev, I'm not part of the Shopify team, so I won't be able to approve it.