Question

我已经从wordpress'网站上使用woocommerce rest api获取了json数据，响应如下：

[{"id":4077,"name":"Work Benches","slug":"work-benches","parent":4076,"description":"","display":"default","image":null,"menu_order":0,"count":10,"_links":{"self":[{"href":"https:\/\/www.fynds.co.uk\/wp-json\/wc\/v3\/products\/categories\/4077"}],"collection":[{"href":"https:\/\/www.fynds.co.uk\/wp-json\/wc\/v3\/products\/categories"}],"up":[{"href":"https:\/\/www.fynds.co.uk\/wp-json\/wc\/v3\/products\/categories\/4076"}]}},{"id":4802,"name":"Work Lights","slug":"work-lights","parent":4073,"description":"","display":"default","image":null,"menu_order":0,"count":23,"_links":{"self":[{"href":"https:\/\/www.fynds.co.uk\/wp-json\/wc\/v3\/products\/categories\/4802"}],"collection":[{"href":"https:\/\/www.fynds.co.uk\/wp-json\/wc\/v3\/products\/categories"}],"up":[{"href":"https:\/\/www.fynds.co.uk\/wp-json\/wc\/v3\/products\/categories\/4073"}]}},{"id":4029,"name":"Work Safety Protective Equipment","slug":"work-safety-protective-equipment","parent":0,"description":"","display":"default","image":null,"menu_order":0,"count":53,"_links":{"self":[{"href":"https:\/\/www.fynds.co.uk\/wp-json\/wc\/v3\/products\/categories\/4029"}],"collection":[{"href":"https:\/\/www.fynds.co.uk\/wp-json\/wc\/v3\/products\/categories"}]}},{"id":5248,"name":"Yoga &amp; Pilates Blocks","slug":"yoga-pilates-blocks","parent":4296,"description":"","display":"default","image":null,"menu_order":0,"count":1,"_links":{"self":[{"href":"https:\/\/www.fynds.co.uk\/wp-json\/wc\/v3\/products\/categories\/5248"}],"collection":[{"href":"https:\/\/www.fynds.co.uk\/wp-json\/wc\/v3\/products\/categories"}],"up":[{"href":"https:\/\/www.fynds.co.uk\/wp-json\/wc\/v3\/products\/categories\/4296"}]}},{"id":4556,"name":"Yoga &amp; Pilates Mats","slug":"yoga-pilates-mats","parent":4296,"description":"","display":"default","image":null,"menu_order":0,"count":22,"_links":{"self":[{"href":"https:\/\/www.fynds.co.uk\/wp-json\/wc\/v3\/products\/categories\/4556"}],"collection":[{"href":"https:\/\/www.fynds.co.uk\/wp-json\/wc\/v3\/products\/categories"}],"up":[{"href":"https:\/\/www.fynds.co.uk\/wp-json\/wc\/v3\/products\/categories\/4296"}]}}]

但是我只需要特定的属性，例如（id，name，slug）。

我搜索了很多问题，但没有明确的答案，减少传入的json数据以使应用程序运行更快的目的更新我尝试不 woocommerce rest api

https://*myweb*/wp-json/wp/v2/posts?filter[posts_per_page]=10&fields=id,title

它起作用了但不适用于woocommerce rest api：

https://www.***/wp-json/wc/v3/products?consumer_key=***&consumer_secret=****&per_page=10&field=id,name

Answer 1

实际上有一种方法，但是您需要在woocommerce中的functions.php中写一个钩子；）

假设以下网址http://localhost/wp-json/wc/v3/products?fields=sku,name

技巧是fields参数，该参数包含用逗号分隔的要检索字段的列表。

因此，您将这种行为与woocommerce挂钩……是这样的：

add_filter( 'woocommerce_rest_prepare_product_object', 'my_woocommerce_rest_prepare_product_object', 10, 3 );
function my_woocommerce_rest_prepare_product_object( $response, $object, $request ) { 

    $data = $response->get_data();
    $newdata = [];
    foreach ( explode ( ",", $request['fields'] ) as $field ) {
        $newdata[$field] = $data[$field];
    }
    $response->set_data( $newdata );

    return $response;
}

和... 瞧

 {
    "sku": "544392",
    "name": "ACIDET 3 EN 1 GALON",
    "_links": {
        "self": [
            {
                "href": "http://localhost/wp-json/wc/v3/products/35809"
            }
        ],
        "collection": [
            {
                "href": "http://localhost/wp-json/wc/v3/products"
            }
        ]
    }
},
{
    "sku": "544391",
    "name": "DESTAPADOR CANIERIA LEJIA GEL SELLO ROJOGL",
    "_links": {
        "self": [
            {
                "href": "http://localhost/wp-json/wc/v3/products/35808"
            }
        ],
        "collection": [
            {
                "href": "http://localhost/wp-json/wc/v3/products"
            }
        ]
    }
},
{
    "sku": "544389",
    "name": "ACIDET 3 EN 1 950ML",
    "_links": {
        "self": [
            {
                "href": "http://localhost/wp-json/wc/v3/products/35807"
            }
        ],
        "collection": [
            {
                "href": "http://localhost/wp-json/wc/v3/products"
            }
        ]
    }
},

...

希望有帮助！！顺便说一句，我设计了该解决方案，深入阅读了源代码。

：）

Answer 2

我在 PazFernando 代码中添加了一个 IF，以防万一您可以在不指定字段的情况下发送 get 调用。

add_filter( 'woocommerce_rest_prepare_product_object', 'my_woocommerce_rest_prepare_product_object', 10, 3 );

function my_woocommerce_rest_prepare_product_object( $response, $object, $request ) 
{ 

   $data = $response->get_data();
   $newdata = [];

   if ($request['fields'] != null) 
   {
      foreach ( explode ( ",", $request['fields'] ) as $field ) 
      {
         $newdata[$field] = $data[$field];
      }
    
      $response->set_data( $newdata );
   }

   return $response;
}

如何从woocommerce Rest API获取特定的JSON字段

2 个答案: