JavaScript

Send BinData Contents over a Socket

Demonstrates Socket.SendBd, which sends bytes from a BinData beginning at an offset. A numBytes of 0 sends from the offset through the end of the data.

Background. The BinData receive methods accumulate raw bytes in a BinData object. A single receive returns only what is currently available, whereas the counted receive waits for an exact number of bytes.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

JavaScript

var success = false;

var socket = new CkSocket();

//  Connect to the server using TLS.
var bTls = true;
var maxWaitMs = 5000;
success = socket.Connect("example.com",5000,bTls,maxWaitMs);
if (success == false) {
    console.log(socket.LastErrorText);
    return;
}

//  Place some bytes into a BinData to be sent.
var bd = new CkBinData();
bd.AppendString("message payload","utf-8");

//  Send bytes from the BinData starting at the given offset.  A numBytes of 0 sends from the offset
//  through the end of the data.
success = socket.SendBd(bd,0,0);
if (success == false) {
    console.log(socket.LastErrorText);
    return;
}

console.log("Sent " + bd.NumBytes + " bytes.");