Pascal (Lazarus/Delphi)

Shopify Query a variant for its inventory item ID

See more Shopify Examples

Query a product variant to find the ID of its inventory item. 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;
  resp: THttpResponse;
  jsonResponse: TJsonObject;
  id: Integer;
  product_id: Integer;
  title: string;
  inventory_item_id: Integer;
  admin_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';

  http.Accept := 'application/json';

  resp := THttpResponse.Create;
  success := http.HttpNoBody('GET','https://{shop}.myshopify.com/admin/api/2020-04/products/{product_id}/variants/{variant_id}.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 <> 200) 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

  //  {
  //    "id": 12195009364024,
  //    "product_id": 1321541042232,
  //    "title": "xs",
  //  ...
  //    "inventory_item_id": 12250274365496,
  //  ...
  //    "admin_graphql_api_id": "gid://shopify/ProductVariant/12195009364024"
  //  }
  //  

  id := jsonResponse.IntOf('id');
  product_id := jsonResponse.IntOf('product_id');
  title := jsonResponse.StringOf('title');
  inventory_item_id := jsonResponse.IntOf('inventory_item_id');
  admin_graphql_api_id := jsonResponse.StringOf('admin_graphql_api_id');


  http.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.