woocommerce rest api: how to query products with specific attribute term

I have a product attribute called flavour and an attribute term called banana with id = 23. I used the following query to filter products to only the products that have that specific attribute term:

wc.getAsync(products/?attribute=flavour&attribute_term=23).then(data => {
console.log(JSON.parse(data));
});

the console shows all the products with no filtering applied. So what is wrong with the above query ?