```

<?php

namespace App\Services;

use Illuminate\Support\Facades\Http;

use Illuminate\Support\Facades\Log;

use Carbon\Carbon;

class AmazonSPApiService

{

private $accessKeyId;

private $secretAccessKey;

private $refreshToken;

private $clientId;

private $clientSecret;

private $sellerId;

public function __construct()

{

$this->accessKeyId = env('AMAZON_SP_API_ACCESS_KEY_ID');

$this->secretAccessKey = env('AMAZON_SP_API_SECRET_ACCESS_KEY');

$this->refreshToken = env('AMAZON_SP_API_REFRESH_TOKEN');

$this->clientId = env('AMAZON_SP_API_CLIENT_ID');

$this->clientSecret = env('AMAZON_SP_API_CLIENT_SECRET');

$this->sellerId = env('AMAZON_SP_API_SELLER_ID');

}

private function getAccessToken()

{

$url = 'https://api.amazon.com/auth/o2/token';

$response = Http::asForm()->post($url, [

'grant_type' => 'refresh_token',

'refresh_token' => $this->refreshToken,

'client_id' => $this->clientId,

'client_secret' => $this->clientSecret,

]);

$data = $response->json();

return $data['access_token'];

}

private function makeApiRequest($endpoint, $method = 'GET', $params = [])

{

$token = $this->getAccessToken();

$url = "https://sellingpartnerapi-na.amazon.com$endpoint";

// dd($token);

try {

$response = Http::withHeaders([

'Authorization' => "Bearer $token",

'x-amz-access-token' => $token,

'x-amz-date' => Carbon::now()->format('Ymd\THis\Z'),

])->$method($url, $params);

dd($response->json());

return $response->json();

} catch (\Exception $e) {

Log::error('Error making SP API request: ' . $e->getMessage());

return null;

}

}

public function getProducts()

{

$endpoint = '/catalog/v0/items'; // Example endpoint for catalog

$params = [

'asin' => 'B07JGTVTWN', // Example ASIN, replace with your own

'marketplaceId' => 'ATVPDKIKX0DER', // Example marketplace ID

];

return $this->makeApiRequest($endpoint, 'GET', $params);

}

// Add more methods to interact with other SP API endpoints

}

Route: Route::get('/amazon-products', [AmazonSPApiController::class, 'getProducts']);

and controller class:

use App\Services\AmazonSPApiService;

use Illuminate\Http\Request;

class AmazonSPApiController extends Controller

{

protected $amazonSPApiService;

public function __construct(AmazonSPApiService $amazonSPApiService)

{

$this->amazonSPApiService = $amazonSPApiService;

}

public function getProducts()

{

$products = $this->amazonSPApiService->getProducts();

if ($products) {

return response()->json(['data' => $products]);

} else {

return response()->json(['error' => 'Unable to fetch products'], 500);

}

}```

this cataglog items api returns Invalid Input error when I call above route where controller class is using AmazonSPApiService service

laravelamazon-selling-partner-api

Is catalog authorization for one ASIN only as I experienced today while listing a Handmade product. Do I have to generate separate catalog authorization request for every product on Handmade I make.? For example my main products are in HOME and Kitchen so separate Catalog Authorization for Placemats, Napkins, Table Cloth, Spatula, T Cozy, Table Runner and so on. I suggest it shall be for complete catalog, especially for Handmade Products. This will ease out and encourage Artisans and expand Amazon Handmade. I am sure Amazon is also aware that Brand Owner of Handmade products is non else than artisan her/himself. Please advise.