Golang encoding/xml.Marshal() function examples

package encoding/xml

Marshal returns the XML encoding of v.

Marshal handles an array or slice by marshalling each of the elements. Marshal handles a pointer by marshalling the value it points at or, if the pointer is nil, by writing nothing. Marshal handles an interface value by marshalling the value it contains or, if the interface value is nil, by writing nothing. Marshal handles all other data by writing one or more XML elements containing the data. See ( http://golang.org/pkg/encoding/xml/#Marshal ) for more detailed description.

Golang encoding/xml.Marshal() function usage examples

Example 1 :

 package main

 import (
 "encoding/xml"
 "fmt"
 )

 type Address struct {
 City, State string
 }
 type Person struct {
 XMLName xml.Name `xml:"person"`
 Id int `xml:"id,attr"`
 FirstName string `xml:"name>first"`
 LastName  string `xml:"name>last"`
 Age int `xml:"age"`
 Height float32  `xml:"height,omitempty"`
 Married bool
 Address
 Comment string `xml:",comment"`
 }

 func main() {
 v := &Person{Id: 13, FirstName: "John", LastName: "Doe", Age: 42}
 v.Comment = " Need more details. "
 v.Address = Address{"Hanga Roa", "Easter Island"}

 output, err := xml.Marshal(v)
 if err != nil {
 fmt.Printf("error: %v\n", err)
 }

 fmt.Println(string(output))
 }

Output :

<person id="13"><name><first>John</first><last>Doe</last></name><age>42</age>

<Married>false</Married><City>Hanga Roa</City>

<State>Easter Island</State><!-- Need more details. --></person>

Example 2 :

 func xmlEncode(i interface{}) (s string, err error) {
 var buf []byte
 buf, err = xml.Marshal(i)
 if err != nil {
 return
 }
 s = string(buf)
 return
 }

Reference :

http://golang.org/pkg/encoding/xml/#Marshal