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Go

Receive Text up to a Matching Sequence

See more Socket/SSL/TLS Examples

Demonstrates Socket.ReceiveUntilMatch, which receives bytes until an exact byte sequence is found. The match string is encoded using StringCharset and compared byte-for-byte.

Background. The comparison is case-sensitive with no Unicode normalization. This is useful for reading a message that ends with an application-defined marker delimiting the end of a response.

Chilkat Go Downloads

Go
    success := false

    socket := chilkat.NewSocket()

    //  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.
    bTls := true
    maxWaitMs := 5000
    success = socket.Connect("example.com",5000,bTls,maxWaitMs)
    if success == false {
        fmt.Println(socket.LastErrorText())
        socket.DisposeSocket()
        return
    }

    //  StringCharset controls the character encoding used when sending and receiving text.
    socket.SetStringCharset("utf-8")
    //  Send a request using a simple application-defined text protocol in which each message ends with a
    //  CRLF.
    command := "STATUS\r\n"
    success = socket.SendString(command)
    if success == false {
        fmt.Println(socket.LastErrorText())
        socket.DisposeSocket()
        return
    }

    //  Receive bytes until an exact byte sequence is found.  The match string is encoded using
    //  StringCharset and compared byte-for-byte.  Here the server marks the end of its response with an
    //  application-defined marker.
    response := socket.ReceiveUntilMatch("<EOM>")
    if socket.LastMethodSuccess() == false {
        fmt.Println(socket.LastErrorText())
        socket.DisposeSocket()
        return
    }

    fmt.Println(*response)

    socket.DisposeSocket()