DECLARE
  req UTL_HTTP.req;
  res UTL_HTTP.resp;
  url VARCHAR2(4000) := 'http://apiinspector.multeo.net/auth';
  buffer VARCHAR2(4000);
  body_content VARCHAR2(4000) := '{"grant_type":"admin", "client_id": "multeo", "client_secret": "Kww9ZcyQVyvQXyCTeuhf769HULAR8nMJ", "document": "000001","password": "TD54A8aWdKgfbRGs"}';
BEGIN

  DBMS_OUTPUT.put_line(LENGTH(content));
  req := UTL_HTTP.begin_request(url, 'POST',' HTTP/1.1');
  UTL_HTTP.set_header(req, 'user-agent', 'mozilla/4.0');
  UTL_HTTP.set_header(req, 'Accept', 'application/x.api.v1+json');
  UTL_HTTP.set_header(req, 'cache-control', 'no-cache');
  UTL_HTTP.set_header(req, 'Content-Type', 'application/json');
  DBMS_OUTPUT.put_line(LENGTH(body_content));
  UTL_HTTP.set_header(req, 'Content-Length', LENGTH(body_content));
  DBMS_OUTPUT.put_line(body_content);
  UTL_HTTP.write_text(req, body_content);
  res := UTL_HTTP.get_response(req);
  -- process the response from the HTTP call
  UTL_HTTP.read_line(res, buffer);
  DBMS_OUTPUT.put_line(buffer);
  /*
  begin
    loop
      utl_http.read_line(res, buffer);
      dbms_output.put_line(buffer);
    end loop;
    utl_http.end_response(res);
  exception
    when utl_http.end_of_body
    then
      utl_http.end_response(res);
  end;
  */
END;