tsslhttpcli TSslHttpCli Access violation at address or 404 error

[Estefanie 0]

Hello

 I am getting this error when doing a GET in a url.

"404 Connection aborted on request" or this mistake access violation in delphi xe2

 

This is my code in the button

 

var
   data: String;
   HttpClient: TSslHttpCli;
   xmlDoc: TXMLDocument;
   dataStream: TMemoryStream;
begin
      mResult.Lines.Clear;
       xmlDoc := TXMLDocument.Create(Self);

    HttpClient := TSslHttpCli.Create(nil);
    HttpClient.ContentTypePost := 'text/xml';
    HttpClient.URL:= 'https://www.poemist.com/api/v1/randompoems';

    HttpClient.RcvdStream := TStringStream.Create('');
    try
       try
        ShowMessage(IntToStr(HttpClient.StatusCode));

           //HttpClient.GetASync;
           HttpClient.Get;
            ShowMessage('-3-1-');
          {  SslHttpCli.SendStream := dataStream;
        SslHttpCli.SendStream.Write(Data[1], Length(Data)) ;
       SslHttpCli.SendStream.Seek(0,0);
        mResult.Lines.LoadFromStream(dataStream);  }
         //   xmlDoc.LoadFromStream(HttpClient.RcvdStream);
           // xmlDoc.Active := True;

           dataStream.LoadFromStream(SslHttpCli.RcvdStream);
                        mResult.Lines.LoadFromStream(dataStream);

         //  mResult.Lines.LoadFromStream(HttpClient.RcvdStream);

               Except
               raise;
                  end;
       finally
               HttpClient.Free;
               xmlDoc.Free;
       end;

 

 

[Angus Robertson 577]

You are trying to use SSL/TLS without using the proper components, you need to assign a TSslContext component to the SslContext property of HttpClient and initialise it correctly, see the PrepareConnection function in the OverbyteIcsHttpsTst1.pas HTTPS sample, although that uses lots of options you don;t actually need.

 

Angus

 

[Fr0sT.Brutal 900]

6 minutes ago, Angus Robertson said:

you need to assign a TSslContext component to the SslContext property of HttpClient and initialise it correctly

Side note: maybe add some friendliness? Clear error message that will explain what's wrong or even default init that will just work without any additional hassle.

[Angus Robertson 577]

He is using an old component, the latest TSslHttpRest does all this automatically.  But long experience in this forum shows people that start using the wrong component would rather continue trying to use it, than change to something better and easier, this comes up again and again and is really down to not enough ICS documentation, which costs money to write, which no-one wants to spend.

 

Angus

 

[Lars Fosdal 1793]

I guess injecting a deprecated statement for the old class could be an option - or is that too brutal.

 

[Angus Robertson 577]

The old class is not deprecated, the new component descends from the old one so is 100% compatible, but includes many optional addons such as SSL to make it easier to use. 

 

Angus