Pascal (Lazarus/Delphi)

Square API - List Catalog

See more Square Examples

Returns a list of CatalogObjects that includes all objects of a set of desired types (for example, all CatalogItem and CatalogTax objects) in the catalog. 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.StringBuilder,
  Chilkat.JsonObject;

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

procedure RunDemo;
var
  success: Boolean;
  http: THttp;
  sbResponseBody: TStringBuilder;
  jResp: TJsonObject;
  respStatusCode: Integer;
  v_type: string;
  id: string;
  updated_at: string;
  version: Integer;
  is_deleted: Boolean;
  present_at_all_locations: Boolean;
  category_dataName: string;
  tax_dataName: string;
  tax_dataCalculation_phase: string;
  tax_dataInclusion_type: string;
  tax_dataPercentage: string;
  tax_dataEnabled: Boolean;
  i: Integer;
  count_i: Integer;

begin
  success := False;

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

  http := THttp.Create;

  //  Implements the following CURL command:

  //  curl https://connect.squareup.com/v2/catalog/list?types=category%2Ctax \
  //    -H 'Square-Version: 2020-07-22' \
  //    -H 'Authorization: Bearer ACCESS_TOKEN' \
  //    -H 'Content-Type: application/json'

  //  Use the following online tool to generate HTTP code from a CURL command
  //  Convert a cURL Command to HTTP Source Code

  //  Adds the "Authorization: Bearer ACCESS_TOKEN" header.
  http.AuthToken := 'ACCESS_TOKEN';
  http.SetRequestHeader('Square-Version','2020-07-22');
  http.SetRequestHeader('Content-Type','application/json');

  //  This example uses the sandbox: connect.squareupsandbox.com
  //  Production should use connect.squareup.com
  sbResponseBody := TStringBuilder.Create;
  success := http.QuickGetSb('https://connect.squareupsandbox.com/v2/catalog/list?types=item,category,tax,image',sbResponseBody);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  jResp := TJsonObject.Create;
  jResp.LoadSb(sbResponseBody);
  jResp.EmitCompact := False;

  WriteLn('Response Body:');
  WriteLn(jResp.Emit());

  respStatusCode := http.LastStatus;
  WriteLn('Response Status Code = ' + respStatusCode);
  if (respStatusCode >= 400) then
    begin
      WriteLn('Response Header:');
      WriteLn(http.LastHeader);
      WriteLn('Failed.');
      Exit;
    end;

  //  Sample JSON response:
  //  (Sample code for parsing the JSON response is shown below)

  //  {
  //    "objects": [
  //      {
  //        "type": "CATEGORY",
  //        "id": "5ZYQZZ2IECPVJ2IJ5KQPRDC3",
  //        "updated_at": "2017-02-21T14:50:26.495Z",
  //        "version": 1487688626495,
  //        "is_deleted": false,
  //        "present_at_all_locations": true,
  //        "category_data": {
  //          "name": "Beverages"
  //        }
  //      },
  //      {
  //        "type": "TAX",
  //        "id": "L5R47DGBZOOVKCAFIXC56AEN",
  //        "updated_at": "2017-02-21T14:50:26.495Z",
  //        "version": 1487688626495,
  //        "is_deleted": false,
  //        "present_at_all_locations": true,
  //        "tax_data": {
  //          "name": "Sales Tax",
  //          "calculation_phase": "TAX_SUBTOTAL_PHASE",
  //          "inclusion_type": "ADDITIVE",
  //          "percentage": "5.0",
  //          "enabled": true
  //        }
  //      }
  //    ]
  //  }

  //  Sample code for parsing the JSON response...
  //  Use the following online tool to generate parsing code from sample JSON:
  //  Generate Parsing Code from JSON

  i := 0;
  count_i := jResp.SizeOfArray('objects');
  while i < count_i do
    begin
      jResp.I := i;
      v_type := jResp.StringOf('objects[i].type');
      id := jResp.StringOf('objects[i].id');
      updated_at := jResp.StringOf('objects[i].updated_at');
      version := jResp.IntOf('objects[i].version');
      is_deleted := jResp.BoolOf('objects[i].is_deleted');
      present_at_all_locations := jResp.BoolOf('objects[i].present_at_all_locations');
      category_dataName := jResp.StringOf('objects[i].category_data.name');
      tax_dataName := jResp.StringOf('objects[i].tax_data.name');
      tax_dataCalculation_phase := jResp.StringOf('objects[i].tax_data.calculation_phase');
      tax_dataInclusion_type := jResp.StringOf('objects[i].tax_data.inclusion_type');
      tax_dataPercentage := jResp.StringOf('objects[i].tax_data.percentage');
      tax_dataEnabled := jResp.BoolOf('objects[i].tax_data.enabled');
      i := i + 1;
    end;



  http.Free;
  sbResponseBody.Free;
  jResp.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.