使用PHP jlevers/selling-partner-api通过EAN获取ASIN遇参数错误

我正在使用PHP和jlevers/selling-partner-api构建小型Web应用，需要通过EAN码获取ASIN。尝试了以下代码：

$catalogApi = $connector->catalogItems();

try {
    // EAN code of a product
    $ean = '3578830113254';

    $marketplaceId = 'APJ6JRA9NG5V4';
    $includedData = ["summaries", "images", "salesRanks", "productTypes", "identifiers", "variations"];

    //search EAN
    $response = $catalogApi->searchCatalogItems([
        'marketplaceIds' => [$marketplaceId],  
        'identifiersType' => 'EAN',            
        'identifiers' => [$ean],                
        'includedData' => $includedData        
    ]);

    // Visualizza la risposta
    echo "<pre>";
    print_r($response);
    echo "</pre>";

} catch (\Exception $e) {
    // Gestisci gli errori
    echo "Errore: ";
    var_dump($e->getMessage());
}

运行时出现如下错误：

SellingPartnerApi\Seller\CatalogItemsV20220401\Api::getCatalogItem():

Argument #1 ($asin) must be of type string, array given

解决方法 #

错误原因是你用关联数组传递参数的方式不符合该SDK的searchCatalogItems方法规范，导致底层误调用了需要字符串ASIN参数的getCatalogItem方法。

修改代码，将参数按方法定义的顺序逐个传入，而非打包成关联数组：

$catalogApi = $connector->catalogItems();

try {
    // EAN code of a product
    $ean = '3578830113254';

    $marketplaceId = 'APJ6JRA9NG5V4';
    $includedData = ["summaries", "images", "salesRanks", "productTypes", "identifiers", "variations"];

    // 按方法参数顺序传入，不需要的可选参数传null
    $response = $catalogApi->searchCatalogItems(
        [$marketplaceId],
        'EAN',
        [$ean],
        null,
        null,
        $includedData
    );

    // 打印响应
    echo "<pre>";
    print_r($response);
    echo "</pre>";

} catch (\Exception $e) {
    // 错误处理
    echo "Errore: ";
    var_dump($e->getMessage());
}

如果上述修改后仍有问题，可检查SDK版本是否为最新，或确认searchCatalogItems的方法签名是否与参数传递匹配。

内容的提问来源于stack exchange，提问作者MarcoZ