Delphi DLL

curl with Path Variables and Query Param Variables

See more CURL Examples

This example demonstrates using variables located in the path and query params with the {{variable_name}} syntax. Delphi DLL

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, JsonObject, HttpCurl;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
targetCurl: PWideChar;
httpCurl: HCkHttpCurl;
responseJson: HCkJsonObject;
statusCode: Integer;

begin
success := False;

// Variables can occur in the path and query params.  
// Variable names are enclosed between {{ and }}

//  curl -X GET https://httpbin.org/{{verb}}?id={id_value}}
targetCurl := 'curl -X GET https://httpbin.org/{{verb}}?id={{id_value}}';

httpCurl := CkHttpCurl_Create();

// Provide values for variables.
// In this example, "verb" is a path variable, and "id_value" is a query param variable.
CkHttpCurl_SetVar(httpCurl,'verb','get');
CkHttpCurl_SetVar(httpCurl,'id_value','123');

// Run the curl command.
success := CkHttpCurl_DoYourThing(httpCurl,targetCurl);
if (success = False) then
  begin
    Memo1.Lines.Add(CkHttpCurl__lastErrorText(httpCurl));
    Exit;
  end;

responseJson := CkJsonObject_Create();
CkJsonObject_putEmitCompact(responseJson,False);

statusCode := CkHttpCurl_getStatusCode(httpCurl);
Memo1.Lines.Add('response status code: ' + IntToStr(statusCode));

CkHttpCurl_GetResponseJson(httpCurl,responseJson);
Memo1.Lines.Add(CkJsonObject__emit(responseJson));

// Output:

// response status code: 200
// {
//   "args": {
//     "id": "123"
//   },
//   "headers": {
//     "Host": "httpbin.org",
//     "X-Amzn-Trace-Id": "Root=1-69e92914-5d4136d240f2f7fe1056f126"
//   },
//   "origin": "222.222.222.222",
//   "url": "https://httpbin.org/get?id=123"
// }

CkHttpCurl_Dispose(httpCurl);
CkJsonObject_Dispose(responseJson);

end;