Pascal (Lazarus/Delphi)

Constant Contact - Create a List

See more Constant Contact Examples

Create a new list using a POST call to the /contact_lists endpoint. 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.HttpResponse,
  Chilkat.JsonObject;

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

procedure RunDemo;
var
  success: Boolean;
  http: THttp;
  json: TJsonObject;
  resp: THttpResponse;
  sbResponseBody: TStringBuilder;
  jResp: TJsonObject;
  respStatusCode: Integer;
  list_id: string;
  name: string;
  description: string;
  favorite: Boolean;
  created_at: string;
  updated_at: string;

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 -X POST \
  //    https://api.cc.email/v3/contact_lists \
  //    -H 'Accept: application/json' \
  //    -H 'Authorization: Bearer {access_token}' \
  //    -H 'cache-control: no-cache' \
  //    -H 'content-type: application/json' \
  //    -d '{
  //    "name": "Multiple purchases",
  //    "favorite": true,
  //    "description": "List of repeat customers"
  //  }'

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

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

  //  The following JSON is sent in the request body.

  //  {
  //    "name": "Multiple purchases",
  //    "favorite": true,
  //    "description": "List of repeat customers"
  //  }

  json := TJsonObject.Create;
  json.UpdateString('name','Multiple purchases');
  json.UpdateBool('favorite',True);
  json.UpdateString('description','List of repeat customers');

  //  Adds the "Authorization: Bearer ACCESS_TOKEN" header.
  http.AuthToken := 'ACCESS_TOKEN';
  http.SetRequestHeader('content-type','application/json');
  http.SetRequestHeader('Accept','application/json');
  http.SetRequestHeader('cache-control','no-cache');

  resp := THttpResponse.Create;
  success := http.HttpJson('POST','https://api.cc.email/v3/contact_lists',json,'application/json',resp);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

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

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

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

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

  //  {
  //    "list_id": "{list_id}",
  //    "name": "Multiple purchases",
  //    "description": "List of repeat customers",
  //    "favorite": true,
  //    "created_at": "2017-07-14T11:25:00-04:00",
  //    "updated_at": "2017-07-14T11:25:00-04:00"
  //  }

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

  list_id := jResp.StringOf('list_id');
  name := jResp.StringOf('name');
  description := jResp.StringOf('description');
  favorite := jResp.BoolOf('favorite');
  created_at := jResp.StringOf('created_at');
  updated_at := jResp.StringOf('updated_at');


  http.Free;
  json.Free;
  resp.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.