Golang XML Mapping

Introduction

This challenge aims to test your knowledge of working with XML in Golang. You will be required to create a struct that can be mapped to XML, marshal and unmarshal XML data, and use field tags to define the structure of the XML output.

Skills Graph

XML

You are required to create a struct named Plant that can be mapped to XML. The struct should have the following fields:

• Id (int) - an XML attribute
• Name (string) - a nested XML element
• Origin ([]string) - a nested XML element

You should also create a struct named Nesting that contains a slice of Plant structs. The Nesting struct should be mapped to an XML element named nesting, and the Plant structs should be nested under <parent><child>....

You should then write code to marshal the Plant and Nesting structs to XML, and unmarshal XML data into the Plant struct.

Requirements

• The Plant struct should be mapped to an XML element named plant.
• The Id field of the Plant struct should be mapped to an XML attribute named id.
• The Name field of the Plant struct should be mapped to a nested XML element named name.
• The Origin field of the Plant struct should be mapped to a nested XML element named origin.
• The Nesting struct should be mapped to an XML element named nesting.
• The Plant structs in the Nesting slice should be nested under <parent><child>....

Example

$ go run xml.go
 <plant id="27">
   <name>Coffee</name>
   <origin>Ethiopia</origin>
   <origin>Brazil</origin>
 </plant>
<?xml version="1.0" encoding="UTF-8"?>
 <plant id="27">
   <name>Coffee</name>
   <origin>Ethiopia</origin>
   <origin>Brazil</origin>
 </plant>
Plant id=27, name=Coffee, origin=[Ethiopia Brazil]
 <nesting>
   <parent>
     <child>
       <plant id="27">
         <name>Coffee</name>
         <origin>Ethiopia</origin>
         <origin>Brazil</origin>
       </plant>
       <plant id="81">
         <name>Tomato</name>
         <origin>Mexico</origin>
         <origin>California</origin>
       </plant>
     </child>
   </parent>
 </nesting>

Summary

In this challenge, you learned how to work with XML in Golang. You created a struct that can be mapped to XML, marshaled and unmarshaled XML data, and used field tags to define the structure of the XML output.