(PureBasic) 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 PureBasic Module Download Chilkat PureBasic Module

IncludeFile "CkHttpResponse.pb"
IncludeFile "CkHttp.pb"
IncludeFile "CkJsonObject.pb"

Procedure ChilkatExample()

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

    http.i = CkHttp::ckCreate()
    If http.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkHttp::setCkLogin(http, "SHOPIFY_PRIVATE_API_KEY")
    CkHttp::setCkPassword(http, "SHOPIFY_PRIVATE_API_KEY")

    ; Also see: How to retrieve inventory levels

    CkHttp::setCkAccept(http, "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.i = CkJsonObject::ckCreate()
    If jsonRequestBody.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkJsonObject::ckUpdateInt(jsonRequestBody,"location_id",6884556842)
    CkJsonObject::ckUpdateInt(jsonRequestBody,"inventory_item_id",12250274365496)
    CkJsonObject::ckUpdateInt(jsonRequestBody,"available_adjustment",1)

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

    resp.i = CkHttp::ckPText(http,"POST",url,CkJsonObject::ckEmit(jsonRequestBody),"utf-8","application/json",0,0)
    If CkHttp::ckLastMethodSuccess(http) <> 1
        Debug CkHttp::ckLastErrorText(http)
        CkHttp::ckDispose(http)
        CkJsonObject::ckDispose(jsonRequestBody)
        ProcedureReturn
    EndIf

    Debug "Response Status Code: " + Str(CkHttpResponse::ckStatusCode(resp))

    jsonResponse.i = CkJsonObject::ckCreate()
    If jsonResponse.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkJsonObject::ckLoad(jsonResponse,CkHttpResponse::ckBodyStr(resp))
    CkJsonObject::setCkEmitCompact(jsonResponse, 0)
    Debug CkJsonObject::ckEmit(jsonResponse)

    If CkHttpResponse::ckStatusCode(resp) >= 300
        Debug "Failed."
        CkHttpResponse::ckDispose(resp)

        CkHttp::ckDispose(http)
        CkJsonObject::ckDispose(jsonRequestBody)
        CkJsonObject::ckDispose(jsonResponse)
        ProcedureReturn
    EndIf

    CkHttpResponse::ckDispose(resp)

    ; 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.i = CkJsonObject::ckIntOf(jsonResponse,"inventory_level.inventory_item_id")
    inventory_levelLocation_id.i = CkJsonObject::ckIntOf(jsonResponse,"inventory_level.location_id")
    inventory_levelAvailable.i = CkJsonObject::ckIntOf(jsonResponse,"inventory_level.available")
    inventory_levelUpdated_at.s = CkJsonObject::ckStringOf(jsonResponse,"inventory_level.updated_at")
    inventory_levelAdmin_graphql_api_id.s = CkJsonObject::ckStringOf(jsonResponse,"inventory_level.admin_graphql_api_id")


    CkHttp::ckDispose(http)
    CkJsonObject::ckDispose(jsonRequestBody)
    CkJsonObject::ckDispose(jsonResponse)


    ProcedureReturn
EndProcedure