Developer Reference

Constants

Constant	Description
`SHOPFEED_VERSION`	Plugin version
`SHOPFEED_PLUGIN_FILE`	Absolute path to the main plugin file
`SHOPFEED_PLUGIN_DIR`	Plugin directory path
`SHOPFEED_PLUGIN_URL`	Plugin URL
`SHOPFEED_OPTION_KEY`	Option name storing all settings (`shopfeed_settings`)
`SHOPFEED_LICENSE_OPTION`	Option name storing the license key
`SHOPFEED_LICENSE_STATUS_OPTION`	Option name storing the license status
`SHOPFEED_FEED_KEYS`	Array of channel keys: `google`, `facebook`, `tiktok`, `pinterest`, `bing`

Class Map

Class	File
`ShopFeed_Admin`	`includes/class-shopfeed-admin.php`
`ShopFeed_Cache`	`includes/class-shopfeed-cache.php`
`ShopFeed_Cron`	`includes/class-shopfeed-cron.php`
`ShopFeed_Feed_Generator`	`includes/class-shopfeed-feed-generator.php`
`ShopFeed_REST_API`	`includes/class-shopfeed-rest-api.php`
`ShopFeed_Rules_Engine`	`includes/class-shopfeed-rules-engine.php`
`ShopFeed_Compat_SEO`	`includes/compat/class-shopfeed-compat-seo.php`
`ShopFeed_Compat_Subscriptions`	`includes/compat/class-shopfeed-compat-subscriptions.php`
`ShopFeed_Compat_Language`	`includes/compat/class-shopfeed-compat-language.php`
`ShopFeed_Compat_Currency`	`includes/compat/class-shopfeed-compat-currency.php`

REST Namespace

shopfeed/v1 - see REST API.

Cron Events

Hook	Schedule	Description
`shopfeed_generate_{channel}_event`	Per-channel frequency setting	Regenerates the static feed for `{channel}` (`google`, `facebook`, `tiktok`, `pinterest`, or `bing`)

AJAX Actions

Action	Description
`shopfeed_save_settings`	Unified settings save (all tabs)
`shopfeed_reset_settings`	Reset settings to defaults
`shopfeed_generate_now`	Force-regenerate all static feeds immediately
`shopfeed_preview_rules`	Preview rule changes against a product sample, without saving
`shopfeed_validate_feed`	Run the Feed Validator against a channel
`shopfeed_license_action`	Activate/deactivate the license key

Rules Engine Reference

ShopFeed_Rules_Engine constants used to build and validate rules:

CONDITION_FIELDS - title, description, sku, brand, product_type, regular_price, price_numeric, stock_quantity, availability

OPERATORS - equals, not_equals, contains, not_contains, starts_with, ends_with, greater_than, less_than, is_empty, is_not_empty

ACTIONS - exclude, set_title, prepend_title, append_title, find_replace_title, set_description, find_replace_description, set_brand, set_google_category, set_availability, add_custom_label, set_price, adjust_price_percent, adjust_price_fixed

See Rules Engine for the user-facing description of each.

Default Settings

Stored in the shopfeed_settings option (shopfeed_default_settings()):

Key	Default	Description
`feeds.{channel}.enabled`	`yes`	Per-channel toggle, for each of the 5 channels
`feeds.{channel}.delivery_mode`	`static`	`static` or `realtime`
`feeds.{channel}.update_frequency`	`twicedaily`	-
`exclude_out_of_stock`	`no`	-
`included_categories`	`[]`	Empty = all categories
`default_brand`	Site name	-
`default_condition`	`new`	-
`currency`	Store currency	-
`google_category`	`''`	-
`rules`	`[]`	-
`compat.seo_enabled`	`no`	-
`compat.subscriptions_enabled`	`yes`	-
`compat.multilingual_enabled`	`no`	-
`compat.active_languages`	`[]`	Empty = all detected languages
`compat.multicurrency_enabled`	`no`	-
`compat.active_currencies`	`[]`	Empty = all detected currencies

Compatibility toggles/lists are only ever written by the settings save handler when their underlying integration is detected as active - saving from another tab never overwrites a compatibility value while its plugin is inactive.

Troubleshooting