Home » Converting JSON to XML and XML to JSON in React: A Guide to Data Interchange

Converting JSON to XML and XML to JSON in React: A Guide to Data Interchange

Best practices for converting JSON to XML and XML to JSON in React

by Isrg Buzz Team
React, Programming, Xml, Json, Parsing

JSON and XML are two of the most widely used data formats for exchanging information between applications. JSON (JavaScript Object Notation) is a lightweight data interchange format that is easy for humans to read and write and easy for machines to parse and generate. XML (eXtensible Markup Language) is a markup language that is used to store and transport data. Both JSON and XML have their own advantages and disadvantages, but in many cases, it is necessary to convert data from one format to the other.

In this article, we’ll discuss how to handle and convert JSON to XML and XML to JSON using React, a popular JavaScript library for building user interfaces.

What is XML?

XML, or eXtensible Markup Language, is a markup language used for encoding data in a structured format. It was created as a successor to HTML and is used for storing and exchanging data. XML uses tags to define elements and their attributes, which makes it a flexible and versatile data format.

For example, consider the following XML data:

In this example, the users element contains multiple user elements, each of which contains an id, name, and email element.

What is JSON?

JSON, or JavaScript Object Notation, is a lightweight data-interchange format that is easy for humans to read and write and for machines to parse and generate. JSON is based on a subset of the JavaScript programming language and is used for exchanging data between systems.

Here’s an example of the same data as above, but in JSON format:

Simple example to parse XML to JSON in React

Parse an XML file and convert it to JSON using React

In this example, we use the XMLHttpRequest API to retrieve the XML file. Then we use the parseXml function to parse the XML and convert it to JSON, which is then displayed in the UI.

Parse an XML file, convert it to JSON, and save it as a separate file using React

In this example, we use the XMLHttpRequest API to retrieve the XML file. Then we use the parseXml function to parse the XML and convert it to JSON. Finally, we use the Blob API to create a new file with the JSON data, and the URL.createObjectURL and download attributes of the a element to download the file to the client’s machine.

Parse a JSON file and save it as an XML file using the xml2js library in React

In this example, we use the useEffect hook to read the JSON file, parse it, and then convert it to an XML string. The xml2js library is used to convert the JSON data to an XML string. Finally, the XML string is saved to a file using the fs module.

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