JavaScript

Receive a Block of Bytes to a File

Demonstrates Socket.ReceiveBytesToFile, which receives one available block of bytes and appends it to a file.

The file path is relative to the application's current working directory. An absolute path may also be used. Supply the path appropriate to your own environment.

Background. Any buffered data is written first; otherwise a single receive operation is performed. The method appends, so repeated calls accumulate received blocks in the file.

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;
}

//  The file path is relative to the application's current working directory.  An absolute path
//  may also be used.  Supply the path appropriate to your own environment.

//  Receive one available block of bytes and append it to a file.  If bytes are already buffered,
//  they are used first; otherwise a single receive operation is performed.
success = socket.ReceiveBytesToFile("qa_output/received.dat");
if (success == false) {
    console.log(socket.LastErrorText);
    return;
}

console.log("Received block appended to the file.");