A simple tool that reads XML structures from a source file, filters nodes and attributes against a whitelist and writes the hopefully much smaller result into an target file. As it uses read- and write-streams its able to process very large XML files.
You can either use xml-minify as a node module or as as CLI. Both ways require a config file. You can specify whitelist-entries for every level, node and attribute. Every element that does not match a whitelist entry, will be removed. Duplicate entries for the same level, node and attributes are not allowed. The first element (level 0) defines the stream-chunks. Only the level-0 entry is allowed to have a path as a filterNode.
[{
level: 0,
filterNode: 'root products product',
keepAttributes: ['id']
},{
level: 1,
filterNode: 'variant',
attributeFilters: [{color: 'blue'}],
keepAttributes: ['name'],
},{
level: 2,
filterNode: 'price',
flatten: true
}]Aboves config will transform
<root>
<products>
<product id="111" category="jackets">
<variant color="blue" name="Blue Jacket">
<price>100.00</price>
</variant>
<variant color="red" name="Red Jacket">
<price>150.00</price>
</variant>
<brand>Awesome Clothing Company</brand>
<bullets name="pros">
<bullet>
<text>Nice color</text>
</bullet>
<bullet>
<text>Even nicer fit</text>
</bullet>
</bullets>
</product>
<product id="222" category="jeans">
<variant color="blue" name="Blue Jeans">
<price>50.00</price>
</variant>
<variant color="red" name="Red Jeans">
<price>75.00</price>
</variant>
<brand>Awesome Clothing Company</brand>
</product>
</products>
</root>into this structure:
<products>
<product id="111">
<variant name="Blue Jacket">100.00</variant>
<bullets name="pros">Nice color;Even nicer fit</bullets>
</product>
<product id="222">
<variant name="Blue Jeans">50.00</variant>
</product>
</products>$ npm install -g xml-stream
Usage: xml-minify.js -input -config -output
Options:
--help Show help [boolean]
--version Show version number [boolean]
-i, --input Relative path to XML source file [string] [required]
-c, --config Relative path to config.js file [string] [default: "config.js"]
-o, --output Relative path to XML target file [string] [default: "out.xml"]
Examples:
xml-minify.js -i input.xml -c config.xml -o output.xml
$ npm install xml-stream
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