joinAdInterestGroup, how to specify products?

[jonasz]

The explainer gives the following spec for joinAdInterestGroup:

const myGroup = {
  (...)
  'ads': [shoes_ad1, shoes_ad2, shoes_ad3],
};
navigator.joinAdInterestGroup(myGroup, 30 * kSecsPerDay);

(...)

The ads list contains the various ads that the interest group might show. Each entry is an object that includes both a rendering URL and arbitrary metadata that can be used at bidding time.

At first glance, it may feel natural to specify products in an additional field within each ad. It seems however that the browser needs clarity about what products are included in the interest group. (For the same reason it needs clarity about ads: microtargeting prevention, ad_render_fingerprint, potentially downloading web bundles in future, ...)

I was wondering how should products be specified, is it the intention to list products alongside ads? Or should we perhaps add a separate field?

const myGroup = {
  (...)
  'ads': [shoes_ad1, shoes_ad2, shoes_ad3],
  'products': [shoe_product1, shoe_product2,...],
};

Best regards,
Jonasz

[jonasz]

Solved with pullreq #185 which introduced a new interest group field, adComponents.