JSON in Get request

[CarlAarnes]

Hi,

How can i add some json into the http request body when using GET?

[rlebeau]

How can i add some json into the http request body when using GET?

TIdHTTP.Get() does not currently allow you to do this. While the current HTTP specs do not strictly prohibit sending a body with a GET request, they do leave it very ambiguous how servers should handle such requests, leading to a wide range of inconsistent/non-functional behaviors.

That being said, if you absolutely need to include a body in a GET request (because a particular REST API requires it), you will have to call the TIdCustomHTTP.DoRequest() method directly, eg:

Code:

// need an accessor class because DoRequest() is protected...
type
  TIdHTTPAccess = class(TIdHTTP)
  end;

var
  requestData: TStringStream;
  responseData: TMemoryStream;
begin
  responseData := TMemoryStream.Create;
  try
    requestData := TStringStream.Create(JSON, TEncoding.UTF8);
    try
      TIdHTTPAccess(IdHTTP1).DoRequest('GET', url, requestData, responseData, []);
    finally
      requestData.Free;
    end;
    // process responseData as needed...
  finally
    responseData.Free;
  end;
end;

[CarlAarnes]

Thank you a lot, this seems to do what I wanted.