dynamic-xml-builder
Intro
Dynamically create XML from JS objects.
const XMLObject = require('dynamic-xml-builder');
const data = new XMLObject('data');
data.user._type = 'person'
data.user.email = 'john@johnjohnnyandjohnson.com'
data.user.aliases.alias = ['John', 'Johnny', 'Johnson']
data.toXML()<data>
<user type="person">
<email>john@johnjohnnyandjohnson.com</email>
<aliases>
<alias>John</alias>
<alias>Johnny</alias>
<alias>Johnson</alias>
</aliases>
</user>
</data>Examples
PS. The examples use HTML because it's a well-known XML.
Object manipulation:
const XMLObject = require('dynamic-xml-builder');
var xml = new XMLObject('html');
// assign an attribute
xml._lang = 'en';
// assign a whole object
xml.head = {
meta: {
_charset: 'utf-8'
}
}
// go deeper
xml.head.title = 'example'
// or more complex
xml.body = {
div: {
_class: 'my-design',
p: [
'hello', 'how', 'are', 'you'
],
br: null
}
}
// or assign a property in a non-existing path
xml.body.div.div.p = 'great'<html lang="en">
<head>
<meta charset="utf-8"/>
<title>example</title>
</head>
<body>
<div class="my-design">
<p>hello</p>
<p>how</p>
<p>are</p>
<p>you</p>
<br/>
<div>
<p>great</p>
</div>
</div>
</body>
</html>Configure output formatting:
xml.toXML({
indent: 2, newLine: '\n'
})<html lang="en">
<head>
<meta charset="utf-8"/>
<title>example</title>
</head>
<body>
<div class="my-design">
<p>hello</p>
<p>how</p>
<p>are</p>
<p>you</p>
<br/>
<div>
<p>great</p>
</div>
</div>
</body>
</html>Every element in the object tree (except for assigned primitive values) is an XMLObject. Therefore the same functionality applies to those objects:
xml.head.toXML()<head>
<meta charset="utf-8"/>
<title>example</title>
</head>Output a plain object:
xml.head.toObject(){ head: { meta: { _charset: 'utf-8' }, title: 'example' } }When you need to directy assign value to element you can use a value selector (_value by default):
var xml = new XMLObject('a')
xml._href = 'https://www.example.com'
xml._value = 'Click me!'<a href="https://www.example.com">Click me!</a>Requirements
Since this is based on ES6 proxies, then ES6 support is required:
- Node 6.4.0+
- Browsers (caniuse.com)
Constructor overloads
new XMLObject('html')
new XMLObject('html', {head: {}, body: {}})
new XMLObject('html', {head: {}, body: {}}, ...options)
new XMLObject({html: {head: {}, body: {}}})
new XMLObject({html: {head: {}, body: {}}}, ...options)Options
Different options can be passed to the constructor or toXML(options) method
| Name | Default | Usage | Description |
|---|---|---|---|
| attrSel | "_" | constructor | used to identify attributes (attrSel + attributeName, i.e. "_charset") |
| valueSel | "_value" | constructor | used to set the element value directly |
| defVal | "" | constructor | default value to use when element value has not been provided |
| indent | "\t" | toXML | indent definition, can be any string |
| newLine | "\r\n" | toXML | newline definition, can be any string |
| attrKey | null | toXML | when provided, will group the attributes of an element under attrKey object |
| declaration | null | toXML | provide true for the default declaration, or any string to override it |
| selfClose | true | toXML | provice false to disable self-closing tags |
Licence
MIT