Want to create a Metafield?

[teratai3]

I want to create a Metafield for my product information. What should I do?

↓It doesn't show up even if I post it.

$postArray = array( "namespace" => "newmetafields", "key" => "product.metafields.custom.hoge", "value" => 25, "type" => "integer", ); $meta = $shopify->Metafield->post($postArray);