Sample code for 30+ languages & platforms
Node.js

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

See more Shopify Examples

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

Chilkat Node.js Downloads

Node.js
NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

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

    var http = new chilkat.Http();

    http.Login = "SHOPIFY_PRIVATE_API_KEY";
    http.Password = "SHOPIFY_PRIVATE_API_KEY";

    // Also see: How to retrieve inventory levels

    http.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

    var jsonRequestBody = new chilkat.JsonObject();
    jsonRequestBody.UpdateInt("location_id",6884556842);
    jsonRequestBody.UpdateInt("inventory_item_id",12250274365496);
    jsonRequestBody.UpdateInt("available_adjustment",1);

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

    var resp = new chilkat.HttpResponse();
    success = http.HttpJson("POST",url,jsonRequestBody,"application/json",resp);
    if (success == false) {
        console.log(http.LastErrorText);
        return;
    }

    console.log("Response Status Code: " + resp.StatusCode);

    var jsonResponse = new chilkat.JsonObject();
    jsonResponse.Load(resp.BodyStr);
    jsonResponse.EmitCompact = false;
    console.log(jsonResponse.Emit());

    if (resp.StatusCode >= 300) {
        console.log("Failed.");
        return;
    }

    // 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"
    // ...
    //   }
    // }
    // 

    var inventory_levelInventory_item_id = jsonResponse.IntOf("inventory_level.inventory_item_id");
    var inventory_levelLocation_id = jsonResponse.IntOf("inventory_level.location_id");
    var inventory_levelAvailable = jsonResponse.IntOf("inventory_level.available");
    var inventory_levelUpdated_at = jsonResponse.StringOf("inventory_level.updated_at");
    var inventory_levelAdmin_graphql_api_id = jsonResponse.StringOf("inventory_level.admin_graphql_api_id");

}

chilkatExample();