Not able to post through REST API

Hi Peter,

No, I just have woo commerce products, nothing else. I’m importing/updating data from a database with a python script to the site, it was working fine, after updating to 2.02 it was not possible to update the products anymore and the error message suggested an error in line 9.

What I do:
Getting data and creating a woo simple product through Woo API.
Creating a post in custom post type "autor" with WordPress API.
Creating a post in custom post type "translator"with WordPress API..
Updating metabox fields and relations through WordPress API.

Running a cronjob and updating new versions of the connected database.

After removing the code it is running smoothly again.
I was wondering, as you were updating to make the product update possible, but here it was the opposite result.

Here is the error log:

[18-Jul-2024 00:52:08 UTC] PHP Fatal error: Uncaught Error: Call to undefined method WP_Post::get_id() in /home/hannl/public_html/wp-content/plugins/mb-rest-api/src/Post.php:9
Stack trace:
#0 /home/hannl/public_html/wp-includes/rest-api/endpoints/class-wp-rest-controller.php(474): MetaBox\RestApi\Post->update()
#1 /home/hannl/public_html/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php(939): WP_REST_Controller->update_additional_fields_for_object()
#2 /home/hannl/public_html/wp-includes/rest-api/class-wp-rest-server.php(1230): WP_REST_Posts_Controller->update_item()
#3 /home/hannl/public_html/wp-includes/rest-api/class-wp-rest-server.php(1063): WP_REST_Server->respond_to_request()
#4 /home/hannl/public_html/wp-includes/rest-api/class-wp-rest-server.php(439): WP_REST_Server->dispatch()
#5 /home/hannl/public_html/wp-includes/rest-api.php(420): WP_REST_Server->serve_request()
#6 /home/hannl/public_html/wp-includes/class-wp-hook.php(324): rest_api_loaded()
#7 /home/hannl/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()
#8 /home/hannl/public_html/wp-includes/plugin.php(565): WP_Hook->do_action()
#9 /home/hannl/public_html/wp-includes/class-wp.php(418): do_action_ref_array()
#10 /home/hannl/public_html/wp-includes/class-wp.php(813): WP->parse_request()
#11 /home/hannl/public_html/wp-includes/functions.php(1336): WP->main()
#12 /home/hannl/public_html/wp-blog-header.php(16): wp()
#13 /home/hannl/public_html/index.php(17): require('...')
#14 {main}
thrown in /home/hannl/public_html/wp-content/plugins/mb-rest-api/src/Post.php on line 9

The error is thrown when I try to update the metabox-data with wp2 API for a product:

https://hannl.bw-works.com/wp-json/wp/v2/product/16441

{
	"code": "internal_server_error",
	"message": "<p>Es gab einen kritischen Fehler auf deiner Website.<\/p><p><a href="https:\/\/wordpress.org\/documentation\/article\/faq-troubleshooting\/">Erfahre mehr über die Problembehandlung in WordPress.<\/a><\/p>",
	"data": {
		"status": 500,
		"error": {
			"type": 1,
			"message": "Uncaught Error: Call to undefined method WP_Post::get_id() in \/home\/hannl\/public_html\/wp-content\/plugins\/mb-rest-api\/src\/Post.php:9\nStack trace:\n#0 \/home\/hannl\/public_html\/wp-includes\/rest-api\/endpoints\/class-wp-rest-controller.php(474): MetaBox\\RestApi\\Post->update()\n#1 \/home\/hannl\/public_html\/wp-includes\/rest-api\/endpoints\/class-wp-rest-posts-controller.php(939): WP_REST_Controller->update_additional_fields_for_object()\n#2 \/home\/hannl\/public_html\/wp-includes\/rest-api\/class-wp-rest-server.php(1230): WP_REST_Posts_Controller->update_item()\n#3 \/home\/hannl\/public_html\/wp-includes\/rest-api\/class-wp-rest-server.php(1063): WP_REST_Server->respond_to_request()\n#4 \/home\/hannl\/public_html\/wp-includes\/rest-api\/class-wp-rest-server.php(439): WP_REST_Server->dispatch()\n#5 \/home\/hannl\/public_html\/wp-includes\/rest-api.php(420): WP_REST_Server->serve_request()\n#6 \/home\/hannl\/public_html\/wp-includes\/class-wp-hook.php(324): rest_api_loaded()\n#7 \/home\/hannl\/public_html\/wp-includes\/class-wp-hook.php(348): WP_Hook->apply_filters()\n#8 \/home\/hannl\/public_html\/wp-includes\/plugin.php(565): WP_Hook->do_action()\n#9 \/home\/hannl\/public_html\/wp-includes\/class-wp.php(418): do_action_ref_array()\n#10 \/home\/hannl\/public_html\/wp-includes\/class-wp.php(813): WP->parse_request()\n#11 \/home\/hannl\/public_html\/wp-includes\/functions.php(1336): WP->main()\n#12 \/home\/hannl\/public_html\/wp-blog-header.php(16): wp()\n#13 \/home\/hannl\/public_html\/index.php(17): require('...')\n#14 {main}\n  thrown",
			"file": "\/home\/hannl\/public_html\/wp-content\/plugins\/mb-rest-api\/src\/Post.php",
			"line": 9
		}
	},
	"additional_errors": []
}

Has there been a change?
Last time you told me to update the matabox-data through REST API v2, so I’m a bit confused now:
https://support.metabox.io/topic/getting-fatal-error-on-psoting-updating-posts-via-rest-api/#post-43867

The workflow is:
Creating a product with WC API v3
Updating metabox custom fields with WP API v2

This was working fine unless the code in your metabox-extension changed.
After changing the code ($post_id = $post->ID;) there as described it is again working fine.

I’m just curious if I have to change the code after every update …

I tried to update via WC API v3 like this, did not work:

{
"meta_box": {
"relatedlist": [],
"untertitel": "Der ausagekräftige Untertitel",
"format": "",
"einband": "Softcover",
"illus": "",
"umfang": "456",
}
}

If I update like this, it does work:
{
"meta_data": [
{
"key": "umfang",
"value": "456"
}
]
}

This is still with the modified code of your plugIn.
And it I would need to change the whole import script to adjust to that.

Next problem: I have a relationship field which is not recognized by the WC APIv3.
And I cannot update that via WP APIv2 as I get a 500 error.

So what to do now?

thx