(Lianja) 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 Lianja Extension Download Chilkat Lianja Extension

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

loHttp = createobject("CkHttp")

loHttp.Login = "SHOPIFY_PRIVATE_API_KEY"
loHttp.Password = "SHOPIFY_PRIVATE_API_KEY"

// Also see: How to retrieve inventory levels

loHttp.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

loJsonRequestBody = createobject("CkJsonObject")
loJsonRequestBody.UpdateInt("location_id",6884556842)
loJsonRequestBody.UpdateInt("inventory_item_id",12250274365496)
loJsonRequestBody.UpdateInt("available_adjustment",1)

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

loResp = loHttp.PText("POST",lcUrl,loJsonRequestBody.Emit(),"utf-8","application/json",.F.,.F.)
if (loHttp.LastMethodSuccess <> .T.) then
    ? loHttp.LastErrorText
    release loHttp
    release loJsonRequestBody
    return
endif

? "Response Status Code: " + str(loResp.StatusCode)

loJsonResponse = createobject("CkJsonObject")
loJsonResponse.Load(loResp.BodyStr)
loJsonResponse.EmitCompact = .F.
? loJsonResponse.Emit()

if (loResp.StatusCode >= 300) then
    ? "Failed."
    release loResp
    release loHttp
    release loJsonRequestBody
    release loJsonResponse
    return
endif

release loResp

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

lnInventory_levelInventory_item_id = loJsonResponse.IntOf("inventory_level.inventory_item_id")
lnInventory_levelLocation_id = loJsonResponse.IntOf("inventory_level.location_id")
lnInventory_levelAvailable = loJsonResponse.IntOf("inventory_level.available")
lcInventory_levelUpdated_at = loJsonResponse.StringOf("inventory_level.updated_at")
lcInventory_levelAdmin_graphql_api_id = loJsonResponse.StringOf("inventory_level.admin_graphql_api_id")


release loHttp
release loJsonRequestBody
release loJsonResponse