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Pascal (Lazarus/Delphi)

GeoOp - Export Clients to CSV

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Export client data to a CSV.

Chilkat Pascal (Lazarus/Delphi) Downloads

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.OAuth2,
  Chilkat.Rest,
  Chilkat.JsonObject,
  Chilkat.Csv;

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

procedure RunDemo;
var
  success: Boolean;
  jsonToken: TJsonObject;
  oauth2: TOAuth2;
  rest: TRest;
  bAutoReconnect: Boolean;
  responseBody: string;
  json: TJsonObject;
  csv: TCsv;
  numRecords: Integer;
  i: Integer;

begin
  success := False;

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

  //  This example also assumes an OAuth2 access token was previously fetched.
  //  and saved in a JSON file.  

  //  First get our previously obtained access token.
  //  {"access_token":"e6dqdG....mzjpT04w==","token_type":"Bearer","expires_in":2592000,"owner_id":999236}
  jsonToken := TJsonObject.Create;
  success := jsonToken.LoadFile('qa_data/tokens/geoop.json');

  //  This example assumes we previously obtained an access token
  oauth2 := TOAuth2.Create;
  oauth2.AccessToken := jsonToken.StringOf('access_token');

  rest := TRest.Create;

  //  Connect to GeoOp and send the following GET request:

  //  GET /users HTTP/1.1
  //  Host: api.geoop.com
  bAutoReconnect := True;
  success := rest.Connect('api.geoop.com',443,True,bAutoReconnect);
  if (success <> True) then
    begin
      WriteLn(rest.LastErrorText);
      Exit;
    end;

  //  Provide the authentication credentials (i.e. the access token)
  rest.SetAuthOAuth2(oauth2);

  //  Set the X-Version header.
  rest.AddHeader('X-Version','1.0');

  responseBody := rest.FullRequestNoBody('GET','/clients');
  if (rest.LastMethodSuccess <> True) then
    begin
      WriteLn(rest.LastErrorText);
      Exit;
    end;

  json := TJsonObject.Create;
  json.EmitCompact := False;

  //  If the response status code did not indicate success, then see what happened..
  if (rest.ResponseStatusCode <> 200) then
    begin
      WriteLn('Request Header: ');
      WriteLn(rest.LastRequestHeader);
      WriteLn('----');
      WriteLn('Response StatusCode = ' + rest.ResponseStatusCode);
      WriteLn('Response StatusLine: ' + rest.ResponseStatusText);
      WriteLn('Response Header:');
      WriteLn(rest.ResponseHeader);
      json.Load(responseBody);
      WriteLn(json.Emit());
      Exit;
    end;

  json.Load(responseBody);
  //  Show the full JSON response.. (see below)
  WriteLn(json.Emit());
  WriteLn('---');

  csv := TCsv.Create;
  csv.HasColumnNames := True;
  csv.SetColumnName(0,'id');
  csv.SetColumnName(1,'companyName');
  csv.SetColumnName(2,'businessType');
  csv.SetColumnName(3,'account_id');
  csv.SetColumnName(4,'address_line1');
  csv.SetColumnName(5,'address_city');
  csv.SetColumnName(6,'address_postcode');

  //  Iterate over each client and populate the CSV...
  numRecords := json.SizeOfArray('clients');
  i := 0;
  while i < numRecords do
    begin

      json.I := i;
      csv.SetCellByName(i,'id',json.StringOf('clients[i].id'));
      csv.SetCellByName(i,'companyName',json.StringOf('clients[i].companyName'));
      csv.SetCellByName(i,'businessType',json.StringOf('clients[i].businessType'));
      csv.SetCellByName(i,'account_id',json.StringOf('clients[i].account.id'));
      csv.SetCellByName(i,'address_line1',json.StringOf('clients[i].address.line1'));
      csv.SetCellByName(i,'address_city',json.StringOf('clients[i].address.city'));
      csv.SetCellByName(i,'address_postcode',json.StringOf('clients[i].address.postcode'));
      i := i + 1;
    end;

  //  Show the CSV.
  WriteLn(csv.SaveToString());

  //  Save the CSV.
  csv.SaveFile('qa_output/clients.csv');

  //  ---------------------------------------------------------------------
  //  The full JSON response containing all client data:
  //  
  //  	{
  //  	  "result": "success",
  //  	  "clients": [
  //  	    {
  //  	      "id": 9555868,
  //  	      "firstName": "[ Demo",
  //  	      "lastName": "Client ]",
  //  	      "companyName": "Miller Park Cafe",
  //  	      "businessType": "Licensed Restaurant",
  //  	      "leadSource": "",
  //  	      "emailAddress": null,
  //  	      "phoneNumber": null,
  //  	      "mobileNumber": null,
  //  	      "faxNumber": null,
  //  	      "notes": "",
  //  	      "deleted": false,
  //  	      "hasRecentJobs": true,
  //  	      "created": "2016-10-26T12:05:09+00:00",
  //  	      "modified": "2016-10-26T12:05:09+00:00",
  //  	      "billingClient": null,
  //  	      "account": {
  //  	        "id": 39409
  //  	      },
  //  	      "address": {
  //  	        "line1": "1732 Pennsylvania Avenue NW",
  //  	        "line2": "",
  //  	        "city": "Washington",
  //  	        "postcode": "20006",
  //  	        "latitude": 38.899037,
  //  	        "longitude": -77.040207
  //  	      },
  //  	      "mailingAddress": {}
  //  	    },
  //  	    {
  //  	      "id": 9571176,
  //  	      "firstName": "Mildred",
  //  	      "lastName": "Vanildred",
  //  	      "companyName": "Ice Cream Industries",
  //  	      "businessType": "Ice Cream",
  //  	      "leadSource": null,
  //  	      "emailAddress": "milli@icecreamindustries.com",
  //  	      "phoneNumber": "678-555-1012",
  //  	      "mobileNumber": null,
  //  	      "faxNumber": null,
  //  	      "notes": "",
  //  	      "deleted": false,
  //  	      "hasRecentJobs": true,
  //  	      "created": "2016-10-31T12:32:12+00:00",
  //  	      "modified": "2016-10-31T12:32:13+00:00",
  //  	      "billingClient": null,
  //  	      "account": {
  //  	        "id": 39409
  //  	      },
  //  	      "address": {
  //  	        "line1": "2101 West Roosevelt Road",
  //  	        "line2": null,
  //  	        "city": "Wheaton",
  //  	        "postcode": "60187",
  //  	        "latitude": 41.8581778,
  //  	        "longitude": -88.1380111
  //  	      },
  //  	      "mailingAddress": {
  //  	        "line1": "2101 West Roosevelt Road",
  //  	        "line2": null,
  //  	        "city": "Wheaton"
  //  	      }
  //  	    },
  //  	    {
  //  	      "id": 9571218,
  //  	      "firstName": "Joe",
  //  	      "lastName": "Miller",
  //  	      "companyName": "Miller Bakery",
  //  	      "businessType": "Licensed Bakery",
  //  	      "leadSource": "",
  //  	      "emailAddress": null,
  //  	      "phoneNumber": null,
  //  	      "mobileNumber": null,
  //  	      "faxNumber": null,
  //  	      "notes": "",
  //  	      "deleted": false,
  //  	      "hasRecentJobs": true,
  //  	      "created": "2016-10-31T13:02:07+00:00",
  //  	      "modified": "2016-10-31T13:02:07+00:00",
  //  	      "billingClient": null,
  //  	      "account": {
  //  	        "id": 39409
  //  	      },
  //  	      "address": {
  //  	        "line1": "1832 Pennsylvania Avenue NW",
  //  	        "line2": "",
  //  	        "city": "Washington",
  //  	        "postcode": "20006",
  //  	        "latitude": 0,
  //  	        "longitude": 0
  //  	      },
  //  	      "mailingAddress": {
  //  	        "line1": "",
  //  	        "line2": "",
  //  	        "city": ""
  //  	      }
  //  	    }
  //  	  ],
  //  	  "metadata": {
  //  	    "page": 1,
  //  	    "pagesCount": 1,
  //  	    "recordsPerPage": 20,
  //  	    "recordsCount": 3
  //  	  }
  //  	}
  //  


  jsonToken.Free;
  oauth2.Free;
  rest.Free;
  json.Free;
  csv.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.