(PHP Extension) Shopify Update Inventory Level for a Product (Adjust available quantity)

Use the adjust endpoint with the location ID and inventory item ID to increase or decrease the available quantity for an inventory level:

For more information, see https://shopify.dev/tutorials/manage-product-inventory-with-admin-api#update-inventory-levels-for-a-product-variant

Chilkat PHP Downloads PHP Extension for Windows, Linux, MacOS, Alpine Linux, Solaris

<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

$http = new CkHttp();

$http->put_Login('SHOPIFY_PRIVATE_API_KEY');
$http->put_Password('SHOPIFY_PRIVATE_API_KEY');

// Also see: How to retrieve inventory levels

$http->put_Accept('application/json');

// The following JSON is sent in the request body:

// {
//   "location_id": 6884556842,
//   "inventory_item_id": 12250274365496,
//   "available_adjustment": 1
// }

// Use this online tool to generate the code from sample JSON: 
// Generate Code to Create JSON

$jsonRequestBody = new CkJsonObject();
$jsonRequestBody->UpdateInt('location_id',6884556842);
$jsonRequestBody->UpdateInt('inventory_item_id',12250274365496);
$jsonRequestBody->UpdateInt('available_adjustment',1);

$url = 'https://{shop}.myshopify.com/admin/api/2020-04/inventory_levels/adjust.json';

// resp is a CkHttpResponse
$resp = $http->PText('POST',$url,$jsonRequestBody->emit(),'utf-8','application/json',false,false);
if ($http->get_LastMethodSuccess() != true) {
    print $http->lastErrorText() . "\n";
    exit;
}

print 'Response Status Code: ' . $resp->get_StatusCode() . "\n";

$jsonResponse = new CkJsonObject();
$jsonResponse->Load($resp->bodyStr());
$jsonResponse->put_EmitCompact(false);
print $jsonResponse->emit() . "\n";

if ($resp->get_StatusCode() >= 300) {
    print 'Failed.' . "\n";

    exit;
}

// Sample output...
// (See the parsing code below..)
// 
// Use the this online tool to generate parsing code from sample JSON: 
// Generate Parsing Code from JSON

// {
//   "inventory_level": {
//     "inventory_item_id": 12250274365496,
//     "location_id": 6884556842,
//     "available": 9,
//     "updated_at": "2018-06-26T15:04:49-04:00",
// ...
//     "admin_graphql_api_id": "gid://shopify/InventoryLevel/6485147690?inventory_item_id=12250274365496"
// ...
//   }
// }
// 

$inventory_levelInventory_item_id = $jsonResponse->IntOf('inventory_level.inventory_item_id');
$inventory_levelLocation_id = $jsonResponse->IntOf('inventory_level.location_id');
$inventory_levelAvailable = $jsonResponse->IntOf('inventory_level.available');
$inventory_levelUpdated_at = $jsonResponse->stringOf('inventory_level.updated_at');
$inventory_levelAdmin_graphql_api_id = $jsonResponse->stringOf('inventory_level.admin_graphql_api_id');

?>