fast-xml-parser

Validate XML, Parse XML to JS Object, or Build XML from JS Object without C/C++ based libraries and no callback.

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• [email protected]
• https://linkedin.com/in/amitguptagwl/

Main Features

• Validate XML data syntactically
• Parse XML to JS Object
• Build XML from JS Object
• Works with node packages, in browser, and in CLI (press try me button above for demo)
• Faster than any other pure JS implementation.
• It can handle big files (tested up to 100mb).
• Controlled parsing using various options
• XML Entities, HTML entities, and DOCTYPE entites are supported.
• unpaired tags (Eg <br> in HTML), stop nodes (Eg <script> in HTML) are supported.
• You can restore almost same XML from JSON
• Supports comments
• It can preserve Order of tags in JS object
• You can control if a single tag should be parsed into array.
• Supports parsing of PI (Processing Instruction) tags with XML declaration tags
• And many more other features.

How to use

To use as package dependency $ npm install fast-xml-parser or $ yarn add fast-xml-parser

To use as system command $ npm install fast-xml-parser -g

To use it on a webpage include it from a CDN

Example

As CLI command

$ fxparser some.xml

In a node js project

const { XMLParser, XMLBuilder, XMLValidator} = require("fast-xml-parser");

const parser = new XMLParser();
let jObj = parser.parse(XMLdata);

const builder = new XMLBuilder();
const xmlContent = builder.build(jObj);

In a HTML page

<script src="path/to/fxp.min.js"></script>
:
<script>
  const parser = new fxparser.XMLParser();
  parser.parse(xmlContent);
</script>

Check lib folder for different browser bundles

| Bundle Name | Size | | ------------------ | ---- | | fxbuilder.min.js | 5.2K | | fxparser.js | 50K | | fxparser.min.js | 17K | | fxp.min.js | 22K | | fxvalidator.min.js | 5.7K |

Documents

v3

• documents

v4

1. GettingStarted.md
2. XML Parser
3. XML Builder
4. XML Validator
5. Entities
6. HTML Document Parsing
7. PI Tag processing

Performance

XML Parser

• Y-axis: requests per second
• X-axis: File size

Large files

• Y-axis: requests per second
• X-axis: File size

XML Builder

• Y-axis: requests per second

negative means error

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  • Options to integrate E2E tests with Jira, Github etc using Central dashboard Tian.
• Stubmatic : Create fake webservices, DynamoDB or S3 servers, Manage fake/mock stub data, Or fake any HTTP(s) call.

Supporters

Contributors

This project exists thanks to all the people who contribute. [Contribute].

Backers

Thank you to all our backers! 🙏 [Become a backer]

License

• MIT License