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Delphi ActiveX Requires Chilkat v11.5.0+

curl with Path Variables and Query Param Variables

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

Chilkat Delphi ActiveX Downloads

Delphi ActiveX
var
success: Integer;
targetCurl: WideString;
httpCurl: TChilkatHttpCurl;
responseJson: TChilkatJsonObject;
statusCode: Integer;

begin
success := 0;

//  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 := TChilkatHttpCurl.Create(Self);

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

//  Run the curl command.
success := httpCurl.DoYourThing(targetCurl);
if (success = 0) then
  begin
    Memo1.Lines.Add(httpCurl.LastErrorText);
    Exit;
  end;

responseJson := TChilkatJsonObject.Create(Self);
responseJson.EmitCompact := 0;

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

httpCurl.GetResponseJson(responseJson.ControlInterface);
Memo1.Lines.Add(responseJson.Emit());

//  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"
//  }