首先，可以使用WooCommerce REST API文档here 你应该去看看。

其次，下面的示例使用/wc/v3/products/categories （“List all product categories）端点。

这里有一种使用OAuth对您的请求进行身份验证的正确方法—它在通过HTTPS进行身份验证时始终有效，并且是通过HTTP进行身份验证的唯一可接受的选项：

如何在JavaScript中通过wp_localize_script(). 或者用JavaScript实现下面的PHP代码。

您可以通过WoodPress管理界面生成WooCommerce REST API密钥；WooCommerce&rarr；设置（&R）；“高级”选项卡（&R）；REST API。

// Define the request method.
$method = \'GET\';
// Just set the second parameter to the proper endpoint, without /wp-json.
$url = get_rest_url( null, \'/wc/v3/products/categories\' );
// Define your keys.
$ck = \'<put key here>\'; // consumer key
$cs = \'<put key here>\'; // consumer secret

$params = [
    // Required parameters:
    \'oauth_consumer_key\'     => $ck,
    \'oauth_timestamp\'        => time(),
    \'oauth_nonce\'            => wp_create_nonce( time() ),
    \'oauth_signature_method\' => \'HMAC-SHA1\',

    // Parameters specific to the endpoint:
    \'per_page\' => 2,
];

// Sort the parameters and encode them into a single string.
uksort( $params, \'strcmp\' );
$params2 = \'\';
foreach ( $params as $key => $value ) {
    $params2 .= ( $params2 ? \'%26\' : \'\' ) .
        rawurlencode( $key ) . \'%3D\' . rawurlencode( $value );
}

// Create the signature base string.
$sig_base = $method . \'&\' . rawurlencode( $url ) . \'&\' . $params2;
// And generate the signature base.
$sig = base64_encode( hash_hmac( \'sha1\', $sig_base, $cs . \'&\', true ) );

// Add the required oauth_signature parameter.
$params[\'oauth_signature\'] = $sig;
// And build the query string.
$query = http_build_query( $params );

// Then make request to this URL:
//$req_url = $url . \'?\' . $query;

使用HTTP Basic Auth &mdash；设置HTTPAuthorization 收割台；i、 e。Authorization: Basic <base64 encoding of <consumer key>:<consumer secret>>:

jQuery.ajax( {
    url: \'/wp-json/wc/v3/products/categories\',
    headers: {
        \'Authorization\': \'Basic <base64-encoded value here>\'
    },
    ...
} );

并确保Authorization 已在服务器上启用标头

或提供使用者密钥/密码作为查询字符串参数&mdash；e、 g。https://example.com/wp-json/wc/v3/products/categories?consumer_key=<KEY>&consumer_secret=<KEY>:

jQuery.ajax( {
    url: \'/wp-json/wc/v3/products/categories?consumer_key=<key>&consumer_secret=<key>\',
    ...
} );

// This example provides the nonce as a query string parameter.
jQuery.ajax( {
    url: \'/wp-json/wc/v3/products/categories?_wpnonce=<nonce>\',
    ...
} );