Pascal (Lazarus/Delphi)

Shopify Get particular fields of a single product

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Get particular fields of a single product 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.StringBuilder,
  Chilkat.Rest,
  Chilkat.JsonObject;

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

procedure RunDemo;
var
  success: Boolean;
  rest: TRest;
  sbJson: TStringBuilder;
  json: TJsonObject;
  productId: Integer;
  productTitle: string;
  i: Integer;
  count_i: Integer;
  id: Integer;
  product_id: Integer;
  position: Integer;
  created_at: string;
  updated_at: string;
  width: Integer;
  height: Integer;
  src: string;
  j: Integer;
  count_j: Integer;
  intVal: Integer;

begin
  success := False;

  rest := TRest.Create;

  rest.SetAuthBasic('SHOPIFY_PRIVATE_API_KEY','SHOPIFY_PRIVATE_API_KEY');

  success := rest.Connect('chilkat.myshopify.com',443,True,True);
  if (success <> True) then
    begin
      WriteLn(rest.LastErrorText);
      Exit;
    end;

  sbJson := TStringBuilder.Create;
  success := rest.FullRequestNoBodySb('GET','/admin/products/#{id}.json?fields=id,images,title',sbJson);
  if (success <> True) then
    begin
      WriteLn(rest.LastErrorText);
      Exit;
    end;

  if (rest.ResponseStatusCode <> 200) then
    begin
      WriteLn('Received error response code: ' + rest.ResponseStatusCode);
      WriteLn('Response body:');
      WriteLn(sbJson.GetAsString());
      Exit;
    end;

  json := TJsonObject.Create;
  json.LoadSb(sbJson);

  //  The following code parses the JSON response.
  //  A sample JSON response is shown below the sample code.

  productId := json.IntOf('product.id');
  productTitle := json.StringOf('product.title');
  i := 0;
  count_i := json.SizeOfArray('product.images');
  while i < count_i do
    begin
      json.I := i;
      id := json.IntOf('product.images[i].id');
      product_id := json.IntOf('product.images[i].product_id');
      position := json.IntOf('product.images[i].position');
      created_at := json.StringOf('product.images[i].created_at');
      updated_at := json.StringOf('product.images[i].updated_at');
      width := json.IntOf('product.images[i].width');
      height := json.IntOf('product.images[i].height');
      src := json.StringOf('product.images[i].src');
      j := 0;
      count_j := json.SizeOfArray('product.images[i].variant_ids');
      while j < count_j do
        begin
          json.J := j;
          intVal := json.IntOf('product.images[i].variant_ids[j]');
          j := j + 1;
        end;

      i := i + 1;
    end;

  //  A sample JSON response body that is parsed by the above code:

  //  {
  //    "product": {
  //      "id": 632910392,
  //      "title": "IPod Nano - 8GB",
  //      "images": [
  //        {
  //          "id": 850703190,
  //          "product_id": 632910392,
  //          "position": 1,
  //          "created_at": "2017-09-22T14:08:02-04:00",
  //          "updated_at": "2017-09-22T14:08:02-04:00",
  //          "width": 123,
  //          "height": 456,
  //          "src": "https:\/\/cdn.shopify.com\/s\/files\/1\/0006\/9093\/3842\/products\/ipod-nano.png?v=1506103682",
  //          "variant_ids": [
  //          ]
  //        },
  //        {
  //          "id": 562641783,
  //          "product_id": 632910392,
  //          "position": 2,
  //          "created_at": "2017-09-22T14:08:02-04:00",
  //          "updated_at": "2017-09-22T14:08:02-04:00",
  //          "width": 123,
  //          "height": 456,
  //          "src": "https:\/\/cdn.shopify.com\/s\/files\/1\/0006\/9093\/3842\/products\/ipod-nano-2.png?v=1506103682",
  //          "variant_ids": [
  //            808950810
  //          ]
  //        }
  //      ]
  //    }
  //  }

  WriteLn('Example Completed.');


  rest.Free;
  sbJson.Free;
  json.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.