REST error since version 2.021

@gamecreature

Thanks for reaching out to us. Can you please record me how to generate this error? You can use a tool like https://loom.com to record your screen.

It will help me to replicate the issue from my end and I can send it to our development team for further checking.

Hope to hear from you soon.

Thanks again for reporting.

It’s a bit difficult to make a screen cast of this. Invoking the API fails.
Below is an example for the curl command to fetch the terms of a product attribute. Which fails since this version.
(the PHP error details posted above are from the error.log file)

curl https://www.example.com/wp-json/wc/v3/products/attributes/1/terms \
--header "Accept: application/json" \
--header "Authorization: secret"

{"code":"internal_server_error","message":"
Er heeft zich een kritieke fout voorgedaan op deze site.<\/p> Meer informatie over probleemoplossing in WordPress.<\/a><\/p>","data":{"status":500},"additional_errors":[]}

When I disable the get_callback the response is as expected (and as it was before)

curl https://www.example.com/wp-json/wc/v3/products/attributes/1/terms \
--header "Accept: application/json" \
--header "Authorization: secret"

[{"id":157,"name":"Adidas","slug":"adidas","description":"","menu_order":0,"count":50,"_links":{"self":[{"href":"https://www.example.com/wp-json/wc/v3/products/attributes/1/terms/157"}],"collection":[{"href":"https://www.example.com/wp-json/wc/v3/products/attributes/1/terms"}]}},{"id":211,"name":"Asics","slug":"asics","description":"","menu_order":0,"count":63,"_links":{"self":[{"href":"https://www.example.com/wp-json/wc/v3/products/attributes/1/terms/211"}],"collection":[{"href":"https://www.example.com/wp-json/wc/v3/products/attributes/1/terms"}]}}]

• This reply was modified 1 year, 5 months ago by gamecreature.
• This reply was modified 1 year, 5 months ago by gamecreature.

When calling the API Endpoint:

https://domain.com/wp-json/wc/v3/products/attributes/1/terms

The server returns:

{"code":"internal_server_error","message":"<p>There has been a critical error on this website.<\/p><p><a href=\"https:\/\/www.ads-software.com\/documentation\/article\/faq-troubleshooting\/\">Learn more about troubleshooting WordPress.<\/a><\/p>","data":{"status":500},"additional_errors":[]}

And this is logged to the PHP log:

[14-Jun-2023 03:32:09 UTC] PHP Fatal error:  Uncaught Error: Call to undefined method Woo_Variation_Swatches_Backend::get_group() in /var/www/domain.com/wp-content/plugins/woo-variation-swatches/includes/class-woo-variation-swatches-wc-api-response.php:50
Stack trace:
#0 /var/www/domain.com/wp-includes/rest-api/endpoints/class-wp-rest-controller.php(439): Woo_Variation_Swatches_WC_API_Response->get_additional_response()
#1 /var/www/domain.com/wp-content/plugins/woocommerce/includes/rest-api/Controllers/Version1/class-wc-rest-product-attribute-terms-v1-controller.php(150): WP_REST_Controller->add_additional_fields_to_object()
#2 /var/www/domain.com/wp-content/plugins/woocommerce/includes/rest-api/Controllers/Version3/class-wc-rest-terms-controller.php(349): WC_REST_Product_Attribute_Terms_V1_Controller->prepare_item_for_response()
#3 /var/www/domain.com/wp-includes/rest-api/class-wp-rest-server.php(1181): WC_REST_Terms_Controller->get_items()
#4 /var/www/domain.com/wp-includes/rest-api/class-wp-rest-server.php(1028): WP_REST_Server->respond_to_request()
#5 /var/www/domain.com/wp-includes/rest-api/class-wp-rest-server.php(442): WP_REST_Server->dispatch()
#6 /var/www/domain.com/wp-includes/rest-api.php(410): WP_REST_Server->serve_request()
#7 /var/www/domain.com/wp-includes/class-wp-hook.php(308): rest_api_loaded()
#8 /var/www/domain.com/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters()
#9 /var/www/domain.com/wp-includes/plugin.php(565): WP_Hook->do_action()
#10 /var/www/domain.com/wp-includes/class-wp.php(399): do_action_ref_array()
#11 /var/www/domain.com/wp-includes/class-wp.php(780): WP->parse_request()
#12 /var/www/domain.com/wp-includes/functions.php(1334): WP->main()
#13 /var/www/domain.com/wp-blog-header.php(16): wp()
#14 /var/www/domain.com/index.php(17): require('...')
#15 {main}
  thrown in /var/www/domain.com/wp-content/plugins/woo-variation-swatches/includes/class-woo-variation-swatches-wc-api-response.php on line 50

Disabling the plugin and trying again… no error.

@zendev

Thanks for sharing your experience. I have tried it using Postman and got the data successfully: https://paste.pics/OIA5H

I am trying to replicate the issue but it is not happening from my side. It would be great if you record your screen. You can use a tool like?https://loom.com?to record your screen.

A screen-recording is pretty useless, I’m just invoking an API call via the command line . Posting a screencast would also expose my api-secrets in this Forum.

The thing that goes wrong is this, the Woo_Variation_Swatches_Backend::get_group is being called for the new extra REST api info. But this method doesn’t exist in the Woo_Variation_Swatches_Backend class.

I grepped the complete folder and get_group isn’t defined!

Is it possible this method only exists in the pro/paid version?
And accidentally the pro-method call is added to the free version?

• This reply was modified 1 year, 5 months ago by gamecreature.
• This reply was modified 1 year, 5 months ago by gamecreature.

@gamecreature

Thanks for your further inspection. Sorry for the inconvenience. I am forwarding this to our development team. I will get back to you after receiving an update from my team.

i’ve been solve this, when i deactive this plugin
https://www.ads-software.com/plugins/woo-variation-swatches/#:~:text=WooCommerce%20Variation%20Swatch%20plugin%20offers,variation%20swatches%20in%20each%20product.&text=The%20Variation%20Swatches%20plugin%20also,change%20your%20globally%20added%20color.

Hello I am getting similar error and I am not able to load attribute options after selecting attribute from woo mobile app also (2023-06-16T08:59:35+00:00 CRITICAL Uncaught Error: Call to undefined method Woo_Variation_Swatches_Backend::get_group())

@gamecreature @cgeagea @ulinkreasi @zendev

Thank you so much for your patience. We have released an update 2.0.23. Please update to the latest version.

Then let us know whether it resolves the issue or not.

Hope to hear from you soon.

@fizanzvai I just installed the update. And I can confirm, the problem has been solved! Thanks!! ??

• This reply was modified 1 year, 5 months ago by gamecreature.

@gamecreature

A special thanks to you for your in-depth inspection.

If you found our plugin helpful, could you leave your valuable feedback here:?https://www.ads-software.com/support/plugin/woo-variation-swatches/reviews/

Your feedback keeps us inspired.