(Go) 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:

Note: This example requires Chilkat v11.0.0 or greater.

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

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    success := false

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

    http := Http_Ref.html">chilkat.NewHttp()

    http.SetLogin("SHOPIFY_PRIVATE_API_KEY")
    http.SetPassword("SHOPIFY_PRIVATE_API_KEY")

    // Also see: How to retrieve inventory levels

    http.SetAccept("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 := JsonObject_Ref.html">chilkat.NewJsonObject()
    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 := HttpResponse_Ref.html">chilkat.NewHttpResponse()
    success = http.HttpJson("POST",url,jsonRequestBody,"application/json",resp)
    if success == false {
        fmt.Println(http.LastErrorText())
        http.DisposeHttp()
        jsonRequestBody.DisposeJsonObject()
        resp.DisposeHttpResponse()
        return
    }

    fmt.Println("Response Status Code: ", resp.StatusCode())

    jsonResponse := JsonObject_Ref.html">chilkat.NewJsonObject()
    jsonResponse.Load(resp.BodyStr())
    jsonResponse.SetEmitCompact(false)
    fmt.Println(*jsonResponse.Emit())

    if resp.StatusCode() >= 300 {
        fmt.Println("Failed.")
        http.DisposeHttp()
        jsonRequestBody.DisposeJsonObject()
        resp.DisposeHttpResponse()
        jsonResponse.DisposeJsonObject()
        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"
    // ...
    //   }
    // }
    // 

    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")

    http.DisposeHttp()
    jsonRequestBody.DisposeJsonObject()
    resp.DisposeHttpResponse()
    jsonResponse.DisposeJsonObject()