Is there a limit to the number of product_features allowed via the Webservice API?

[gngngngn]

Hello everyone,

I'm working on a Symfony script that uses the PrestaShop Webservice API to automatically add products to my store (PrestaShop 8.1.5).
Everything works fine for most products, except for some that have a large number of features.

These products can include up to 60–70 id_feature@id_feature_value pairs, with several of them using the same id_feature.
When I try to send them via the /api/products endpoint, I get the following error:

HTTP response is empty

For products with fewer features, the API call works correctly.
 

I'm wondering:

Is there any strict (documented or undocumented) limit to the total number of product_feature entries that can be sent via the Webservice API?

Additional info:

PrestaShop version: 8.1.5

Library used: jupi/prestashop-webservice-lib-extra

XML includes all required fields (name, link_rewrite, id_category_default, etc.)

The issue disappears when I reduce the number of features sent
 

Thanks in advance for any help or feedback if you've encountered this kind of limitation before!

[Webkul Solutions]

There is no hardcoded limit in PrestaShop’s core for product_features per product via the Webservice API, but keep server-side limits in mind.

Payload sizes may be limited by: post_max_size