Add helper method alias to JwtPayload similar to ShopifyApp::JWT

Author: zzooeeyy

CHANGELOG.md

@@ -7,6 +7,10 @@ Note: For changes to the API, see https://shopify.dev/changelog?filter=api
 - [#1314](https://github.com/Shopify/shopify-api-ruby/pull/1314)
   - Add new session util method `SessionUtils::session_id_from_shopify_id_token`
   - `SessionUtils::current_session_id` now accepts shopify Id token in the format of `Bearer this_token` or just `this_token`
+- [#1315](https://github.com/Shopify/shopify-api-ruby/pull/1315) Add helper/alias methods to `ShopifyAPI::Auth::JwtPayload`:
+  - `shopify_domain` alias for `shop` - returns the sanitized shop domain
+  - `shopify_user_id` - returns the user Id (`sub`) as an Integer value
+  - `expires_at` alias for `exp` - returns the expiration time
 
 ## 14.2.0
 - [#1309](https://github.com/Shopify/shopify-api-ruby/pull/1309) Add `Session#copy_attributes_from` method

lib/shopify_api/auth/jwt_payload.rb

@@ -15,6 +15,8 @@ class JwtPayload
       sig { returns(Integer) }
       attr_reader :exp, :nbf, :iat
 
+      alias_method :expire_at, :exp
+
       sig { params(token: String).void }
       def initialize(token)
         payload_hash = begin
@@ -43,6 +45,12 @@ def initialize(token)
       def shop
         @dest.gsub("https://", "")
       end
+      alias_method :shopify_domain, :shop
+
+      sig { returns(Integer) }
+      def shopify_user_id
+        @sub.to_i
+      end
 
       # TODO: Remove before releasing v11
       sig { params(shop: String).returns(T::Boolean) }

test/auth/jwt_payload_test.rb

@@ -36,6 +36,12 @@ def test_decode_jwt_payload_succeeds_with_valid_token
             jti: decoded.jti,
             sid: decoded.sid,
           })
+
+        # Helper methods
+        assert_equal(decoded.expire_at, @jwt_payload[:exp])
+        assert_equal("test-shop.myshopify.io", decoded.shopify_domain)
+        assert_equal("test-shop.myshopify.io", decoded.shop)
+        assert_equal(1, decoded.shopify_user_id)
       end
 
       def test_decode_jwt_payload_succeeds_with_spin_domain
@@ -56,6 +62,9 @@ def test_decode_jwt_payload_succeeds_with_spin_domain
             jti: decoded.jti,
             sid: decoded.sid,
           })
+
+        assert_equal("test-shop.other.spin.dev", decoded.shopify_domain)
+        assert_equal("test-shop.other.spin.dev", decoded.shop)
       end
 
       def test_decode_jwt_payload_fails_with_wrong_key