Introduction to xml-stream npm

xml-stream npm is a Node.js package that can be used to parse large XML data files in a streaming fashion. It is particularly helpful when working with XML data that does not fit easily into memory.

Installation

To use xml-stream npm, you must first install it via npm:

npm install xml-stream

Usage

You can use xml-stream npm to parse XML data by creating a Readable stream and piping it to xml-stream npm. Here is an example:

const fs = require('fs');
const XmlStream = require('xml-stream');

const xml = fs.createReadStream('example.xml');
const xmlStream = new XmlStream(xml);

xmlStream.on('startElement: person', (person) => {
  console.log(person.$attrs.id);
});

xmlStream.on('end', () => {
  console.log('Finished parsing XML');
});

The above example will parse an XML file called 'example.xml' and log the value of the 'id' attribute for each 'person' element in the file.

Conclusion

In conclusion, xml-stream npm is a valuable tool for Node.js developers who need to parse large XML data files. It can be easily installed via npm and used to parse XML data in a streaming fashion.