Magento does not provide a REST API Endpoint to get the reviews/ratings from a product. This Module implements an endpoint to get the rating summary for a single product (by SKU).
Use composer to install this module. From your Magento 2 folder run:
composer require alex-le/magento2-review-summary
php bin/magento setup:upgrade Create an API Token and provide access to Marketing -> User Content -> Reviews
Use the following API Endpoint:
| Endpoint | Request method |
|---|---|
| /V1/products/:sku/review-summary | GET |
Response Example:
{
"summary": 60,
"count": 3
}