\name{GTLogin}
\alias{GTLogin}
\title{Login into a GeneTraffic server}
\keyword{ IO }
\description{
  This is the function to login into a GeneTraffic server using the GeneTraffic Web Services API.
}
\usage{
session <- GTLogin(server)
}
%- maybe also `usage' for other objects documented here.
\arguments{
\item{server}{ a \code{GTServer} object.}
}
\value{
  The session id required further on to interact with a GeneTraffic server.
}

\examples{
    \dontrun{
        gt <- GTServer(host = "genetraffic", username="demo", password="pass", port = 80)
        session <- GTLogin(gt)
    }
}