How to send xml over tcp?

General
1

What is the right way to send xml over tcp?

The command was explained like this (the xml part is just an example):

* Add\r\n
* <id>\r\n
* <xml><data></data></xml>\r\n\r\n

Before sending the msg to a tcp-out Node I coded in a function Node :

var buf1 = Buffer.from("ADD\r\n4\r\n", 'utf8');
var buf2 = Buffer.from("<xml><data></data></xml>", 'utf8');
var buf3 = Buffer.from("\r\n\r\n", 'utf8');
var arr = [buf1, buf2, buf3];
msg.payload = Buffer.concat(arr);
return msg;

but this way my command didn't work. Perhaps the xml entities should be converted first. I'm not shure about this. Other commands without the xml part work this way.

2

Well those aren't xml they are just strings so you can just send one string.

var str = "ADD\r\n";
str += "<id>\r\n";
str += "<xml><data></data></xml>\r\n\r\n";
msg.payload = str;
return msg;

Though for most case you only need \n rather than \r\n (unless you are on Windows).

3

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