Pascal (Lazarus/Delphi)

Shopify Set inventory levels to a certain amount

See more Shopify Examples

Use the set endpoint with the location ID and inventory item ID to set an inventory level to a specific value. Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.Http,
  Chilkat.HttpResponse,
  Chilkat.JsonObject;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  http: THttp;
  jsonRequestBody: TJsonObject;
  url: string;
  resp: THttpResponse;
  jsonResponse: TJsonObject;
  inventory_levelInventory_item_id: Integer;
  inventory_levelLocation_id: Integer;
  inventory_levelAvailable: Integer;
  inventory_levelUpdated_at: string;
  inventory_levelAdmin_graphql_api_id: string;

begin
  success := False;

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

  http := THttp.Create;

  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": 1
  //  }

  //  Use this online tool to generate the code from sample JSON: 
  //  Generate Code to Create JSON

  jsonRequestBody := TJsonObject.Create;
  jsonRequestBody.UpdateInt('location_id',6884556842);
  jsonRequestBody.UpdateInt('inventory_item_id',12250274365496);
  jsonRequestBody.UpdateInt('available',1);

  url := 'https://{shop}.myshopify.com/admin/api/2020-04/inventory_levels/set.json';

  resp := THttpResponse.Create;
  success := http.HttpJson('POST',url,jsonRequestBody,'application/json',resp);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  WriteLn('Response Status Code: ' + resp.StatusCode);

  jsonResponse := TJsonObject.Create;
  jsonResponse.Load(resp.BodyStr);
  jsonResponse.EmitCompact := False;
  WriteLn(jsonResponse.Emit());

  if (resp.StatusCode >= 300) then
    begin
      WriteLn('Failed.');
      Exit;
    end;

  //  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": 1,
  //      "updated_at": "2018-06-26T15:44:33-04:00",
  //  ...
  //      "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.Free;
  jsonRequestBody.Free;
  resp.Free;
  jsonResponse.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.