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Node.js

Receive Text up to a Delimiter Byte

See more Socket/SSL/TLS Examples

Demonstrates Socket.ReceiveStringUntilByte, which receives bytes until a specific raw byte value is found, then decodes the preceding bytes using StringCharset. The delimiter is excluded from the returned string.

Background. The delimiter search is purely byte-oriented and does not recognize character boundaries. A common delimiter is the linefeed byte (decimal 10).

Chilkat Node.js Downloads

Node.js
NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    var socket = new chilkat.Socket();

    //  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 = true;
    var maxWaitMs = 5000;
    success = socket.Connect("example.com",5000,bTls,maxWaitMs);
    if (success == false) {
        console.log(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 = "STATUS\r\n";
    success = socket.SendString(command);
    if (success == false) {
        console.log(socket.LastErrorText);
        return;
    }

    //  Receive bytes until a specific raw byte value is found, then decode the preceding bytes using
    //  StringCharset.  The delimiter itself is excluded from the returned string.  Here the delimiter is
    //  the linefeed byte (decimal 10).
    var line = socket.ReceiveStringUntilByte(10);
    if (socket.LastMethodSuccess == false) {
        console.log(socket.LastErrorText);
        return;
    }

    console.log(line);

}

chilkatExample();