Send files via Socket

[Eric Sebestyen Ferreira]

Hi,

   A question, I can send a file via webrequest using multipart/form-data, because in webrequest function there is the *"Header field" and the body field, it works perfectly, but how to send files using sockets? On socket how do I send multipart?

POST /MyURL HTTP/1.1
Cache-Control: no-cache
Postman-Token: 4f9c9910-aaa1-198b-97ce-373a612ea3d0
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW

------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="chat_id"

839815629
------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="photo"

https://conteudo.imguol.com.br/c/noticias/de/2019/11/25/mcdonalds-1574721282710_v2_1254x836.png
------WebKitFormBoundary7MA4YWxkTrZu0gW--

The follow code works (with webrequest)

 string url=StringFormat("%s/bot%s/sendPhoto",TELEGRAM_BASE_URL,m_token);
      uchar data[];
      //--- 
      ArrayAdd(data,"POST /bot"+token+"/sendPhoto HTTP/1.1\r\n");
      ArrayAdd(data,"Host: api.telegram.org\r\n");
      ArrayAdd(data,"Content-Type: multipart/form-data; boundary="+hash+"\r\n");
      ArrayAdd(data,"Connection: keep-alive\r\n");
      ArrayAdd(data,"\r\n");


      ArrayAdd(data,"--"+hash+"\r\n");
      ArrayAdd(data,"Content-Disposition: form-data; name=\"chat_id\"\r\n");
      ArrayAdd(data,"\r\n");
      ArrayAdd(data,IntegerToString(_chat_id));
      ArrayAdd(data,"\r\n");

      ArrayAdd(data,"--"+hash+"\r\n");
      ArrayAdd(data,"Content-Disposition: form-data; name=\"photo\"; 
      ArrayAdd(data,"\r\n");
      ArrayAdd(data,"https://conteudo.imguol.com.br/c/noticias/de/2019/11/25/mcdonalds-1574721282710_v2_1254x836.png");
      ArrayAdd(data,"\r\n");

      ArrayAdd(data,"--"+hash+"--");
      string headers="Content-Type: multipart/form-data; boundary="+hash+"\r\n";
      int res=WebRequest("POST",url,headers,_timeout,data,result,result_headers);

I tried the follow but headers are not avaliable

{
         uchar req[];
         SocketTlsSend(socket_tlg,data,ArraySize(data));
         int len=(int)SocketIsReadable(socket_tlg);
         int rsp_len=SocketTlsReadAvailable(socket_tlg,req,len);
         string  rlt=CharArrayToString(req,0,rsp_len);
         Print(rlt);
         double a=0;
}

Thanks in advance