Flat File Listings

Usage

To convert a POST_FLAT_FILE_LISTINGS_DATA feed to the newer JSON_LISTINGS_FEED format:

use SellingPartnerApi\FeedTransformer\Transformer;
use SellingPartnerApi\FeedTransformer\FeedTypes\Listings;

$feedFile = 'path/to/your/feed.tab';
$json = Transformer::fromFile(
    Listings::$feedType,
    $feedFile,
    'ATVPDKIKX0DER'
);

$jsonFeedPath = 'path/to/new/feed.json';
file_put_contents($jsonFeedPath, json_encode($json));

The first time using this feed transformer with a particular product type, we strongly recommend running the converted data through our validators before putting it into production. That way, you can ensure you know if certain elements of your feed aren't able to be mapped to the new format.

Parameters

merchantId

Required

There is documentation on how to retrieve your merchantId in the Common required parameters section of the Flat file feeds page.

shippingGroupMap

Required if the merchant_shipping_group_name column is present in the feed file being converted.

This is a mapping of your account's shipping group names to their internal Amazon identifiers. Instructions on how to generate this mapping are here: shippingGroupMap

onUnsupportedField

Optional. Default fail.

This option controls what happens when the feed transformer encounters an XML tag that has no direct equivalent in the new JSON format. There are two accepted values:

• ignore: Silently move past un-mappable XML tags.

• callback: Pass un-mappable XML fields (by xpath) to a user-defined callback. See callback
• fail: The first time an un-mappable XML tag is encountered, throw an InvalidFeedException. This is the default.

callback

Conditionally required if onSupportedField is set to callback .

This option is the callback to be called if onSupportedField is set to callback and an un-mappable XML field is encountered while processing the input data. The callback's signature is fn (string): void. For example:

$options = [
    'onUnsupportedField' => 'callback',
    'callback' => function ($field) {
        echo "Unsupported field: $field";
        // -> Unsupported field: unsupported_field_name
    },
    // ...
];