Receive a Bounded String from a Socket

See more Socket/SSL/TLS Examples

Demonstrates Socket.ReceiveStringMaxN, which receives and decodes text like ReceiveString but reads at most a given number of input bytes.

func chilkatTest() {
    var success: Bool = false

    let socket = CkoSocket()!

    //  Connect to the server using TLS.  The 3rd argument enables the TLS handshake after the TCP
    //  connection succeeds; the 4th is the maximum time to wait, in milliseconds.
    var bTls: Bool = true
    var maxWaitMs: Int = 5000
    success = socket.connect(hostname: "example.com", port: 5000, ssl: bTls, maxWaitMs: maxWaitMs)
    if success == false {
        print("\(socket.lastErrorText!)")
        return
    }

    //  StringCharset controls the character encoding used when sending and receiving text.
    socket.stringCharset = "utf-8"
    //  Send a request using a simple application-defined text protocol in which each message ends with a
    //  CRLF.
    var command: String? = "STATUS\r\n"
    success = socket.sendString(str: command)
    if success == false {
        print("\(socket.lastErrorText!)")
        return
    }

    //  Receive and decode text like ReceiveString, but read at most the given number of input bytes.
    //  The limit is measured in bytes, not Unicode characters.
    var firstChunk: String? = socket.receiveStringMaxN(maxBytes: 64)
    if socket.lastMethodSuccess == false {
        print("\(socket.lastErrorText!)")
        return
    }

    print("\(firstChunk!)")

}