Pascal (Lazarus/Delphi)

MedTunnel: Login User

See more MedTunnel Examples

Authenticate and create a session for the User. This gets a user token to be used in the Authorization header for other API calls. 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;
  sbRequestBody: TStringBuilder;
  resp: THttpResponse;
  sbResponseBody: TStringBuilder;
  jResp: TJsonObject;
  respStatusCode: Integer;
  ReturnCode: Integer;
  ReturnCodeText: string;
  Data: string;
  jsonData: TJsonObject;
  token: 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 PUT -k 
  //          -H "Content-Type: application/json" 
  //          -d '{        "MedTunnelId":"yourMedTunnelId@yourGroup",
  //                          "Password":"yourPassword",
  //                          "ApplicationId":"yourApplicationId",
  //                          "LocationId":"yourLocationId",
  //                          "ExpirationInMinutes":"50"
  //                  }'
  //          https://server.medtunnel.com/MedTunnelSvc/api/Authenticate/LoginUser

  //  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.

  //  {
  //    "MedTunnelId": "yourMedTunnelId@yourGroup",
  //    "Password": "yourPassword",
  //    "ApplicationId": "yourApplicationId",
  //    "LocationId": "yourLocationId",
  //    "ExpirationInMinutes": "50"
  //  }

  json := TJsonObject.Create;
  json.UpdateString('MedTunnelId','yourMedTunnelId@yourGroup');
  json.UpdateString('Password','yourPassword');
  json.UpdateString('ApplicationId','yourApplicationId');
  json.UpdateString('LocationId','yourLocationId');
  json.UpdateString('ExpirationInMinutes','50');

  http.SetRequestHeader('Content-Type','application/json');

  sbRequestBody := TStringBuilder.Create;
  json.EmitSb(sbRequestBody);

  resp := THttpResponse.Create;
  success := http.HttpSb('PUT','https://server.medtunnel.com/MedTunnelSvc/api/Authenticate/LoginUser',sbRequestBody,'utf-8','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)

  //  {
  //    "ReturnCode": 1,
  //    "ReturnCodeText": "Success",
  //    "Data": "{\"UserId\":36990,\"UserTypeId\":1, ... \"UserRole\":\"Account Admin\"}"
  //  }

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

  ReturnCode := jResp.IntOf('ReturnCode');
  ReturnCodeText := jResp.StringOf('ReturnCodeText');
  Data := jResp.StringOf('Data');

  //  Load the Data into another JSON object and parse..
  jsonData := TJsonObject.Create;
  jsonData.Load(Data);
  jsonData.EmitCompact := False;
  WriteLn(jsonData.Emit());

  //  Sample result.

  //  {
  //    "UserId": 36990,
  //    "UserTypeId": 1,
  //    "UserTypeDesc": "Single Provider",
  //    "Token": "MT 730DCA95-2B86-4A91-994E-99995B1A6FC1:9999952A-C6DA-4FB5-83D6-9999E880B4A2:50:/hc3CTWCS0kNMxZXTWR4NQ==:tev2vAToTCrnuyT6rxyCgQ==:sAYcvgPoIfaaCF0+gdeSD1GFcYk=",
  //    "MailboxId": 36965,
  //    "UserRole": "Account Admin"
  //  }

  token := jsonData.StringOf('Token');
  WriteLn('Token: ' + token);


  http.Free;
  json.Free;
  sbRequestBody.Free;
  resp.Free;
  sbResponseBody.Free;
  jResp.Free;
  jsonData.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.