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# IncrementInventory

# Package: catalogV1

# Namespace: InventoryWriteApi

# Method link: https://dev.wix.com/docs/api-reference/business-solutions/stores/catalog-v1/inventory/increment-inventory.md

## Permission Scopes:
Manage Products: SCOPE.DC-STORES.MANAGE-PRODUCTS

## Introduction

Adds a set number of items to inventory.

---

## REST API

### Schema

```
 Method: incrementInventory
 Description: Adds a set number of items to inventory.
 URL: https://www.wixapis.com/stores/v2/inventoryItems/increment
 Method: POST
 Method parameters:
   param name: incrementData | type: array<incrementData>   
              - ONE-OF: 
                 - name: inventoryId | type: string | description: Inventory item GUID. 
                 - name: productId | type: string | description: Product GUID. 
              - name: variantId | type: string | description: Variant GUID. 
              - name: incrementBy | type: integer | description: Number to increment inventory by. 
 Return type: IncrementInventoryResponse
  EMPTY-OBJECT {}


```

### Examples

### IncrementInventory
```curl
~~~cURL
curl -X POST https://www.wixapis.com/stores/v2/inventoryItems/increment \
   -H 'Content-Type: application/json' \
   -H 'Authorization: <AUTH>' \
   --data-binary '
       {
         "incrementData": [
           {
             "productId": "f007074f-d7a8-a68b-e6c1-7d7c3de021ff",
             "variantId": "00000000-0000-0001-0005-9ccb19c4e6f0",
             "incrementBy": 2
           }
         ]
       }'
~~~
```

---

## JavaScript SDK

### Schema

```
 Method: wixClientAdmin.catalogV1.InventoryWriteApi.incrementInventory(incrementData)
 Description: Adds a set number of items to inventory.
 # Note: If the parameter `a.b` is listed under required parameters, `b` is only required if `a` is also present.
 Required parameters:  incrementData
 Method parameters: 
   param name: incrementData | type: array<array>   | required: true
              - ONE-OF: 
                 - name: inventoryId | type: string | description: Inventory item GUID. 
                 - name: productId | type: string | description: Product GUID. 
              - name: variantId | type: string | description: Variant GUID. 
              - name: incrementBy | type: integer | description: Number to increment inventory by. 
 Return type: PROMISE<IncrementInventoryResponse>
  EMPTY-OBJECT {}


```

### Examples

### Increment the inventory of a product's first variant
```javascript
/**************************************
 * Backend code - inventory.web.js/ts *
 **************************************/

import { Permissions, webMethod } from '@wix/web-methods';
import { inventory, products } from '@wix/stores';

export const incrementInventory = webMethod(Permissions.Anyone, (incrementData) => {
  return inventory.incrementInventory(incrementData);
});

export const getProductVariants = webMethod(Permissions.Anyone, (_id, options) => {
  return products.getProductVariants(_id, options);
});

/**************
 * Page code *
 **************/

import { incrementInventory, getProductVariants } from 'backend/inventory.web';

async function incrementHandler() {

  const productId = "3fb6a3c8-988b-8755-04bd-ks75ae0b18ea"
  let variants = await getProductVariants(productId);

  incrementInventory(
    [{
      variantId: variants[0]._id,
      productId: productId,
      incrementBy: 1
    }])
    .then(() => {
      console.log("Inventory incremented successfully")
    })
    .catch(error => {
      // Inventory increment failed
      console.error(error);
    })
}

```

### Increment inventory
Increase inventory quantity for a product variant

```javascript
import { inventory } from "@wix/stores";

const incrementData = [
  {
    productId: "c43d36c5-c35a-91ec-1c33-d28efc70d5a6",
    variantId: "00000000-0000-0000-0000-000000000000",
    incrementBy: 2
  }
];

async function incrementInventory() {
  const response = await inventory.incrementInventory(incrementData);
  return response;
}

const result = await inventory.incrementInventory(incrementData);



```

### incrementInventory (self-hosted)
Self-hosted SDK calls require you to [create a client](https://dev.wix.com/docs/sdk/articles/work-with-the-sdk/about-the-wix-client.md).

```javascript
import { createClient } from '@wix/sdk';
import { inventory } from '@wix/stores';
// Import the auth strategy for the relevant access type
// Import the relevant host module if needed

const myWixClient = createClient ({
  modules: { inventory },
  // Include the auth strategy and host as relevant
});


async function incrementInventory(incrementData) {
  const response = await myWixClient.inventory.incrementInventory(incrementData);
};
```

---