Golang encoding/xml

go's builtin library for parsing xml.
See also: golang encoding, xml

A more detailed introduction to go's encoding interface can be seen in golang encoding/json.

NOTE:

Golang's builtin xml library does not support the full xml spec.
Confirm your needs are supported before using it

Documentation

official docs

https://pkg.go.dev/encoding/xml@go1.18.3

Tutorials

tutorialedge

https://tutorialedge.net/golang/parsing-xml-with-golang/

Struct Tags

See full details here

type User struct {
    Name  `xml:"Name"`       // <User><Name>value</Name></User>
    Color `xml:"color,attr"` // <User color="value"></User>
    Skip  `xml:"-"`          // <User></User>
}

Known issues:

• xml namespaces don't work as expected: https://github.com/golang/go/issues/11496
• It doesn't appear that go's internal xml library supports schema validation

Encoding

package main

import (
    "encoding/xml"
    "fmt"
)

type User struct {
    Id   int    `xml:"id"`
    Name string `xml:"name,attr"`
}

func main() {
    user := User{123, "will"}
    bytes, _ := xml.Marshal(&user)
    fmt.Println(string(bytes))  // <User name="will"><id>123</id></User>
}

Decoding

type User struct {
    Id   int    `xml:"id"`
    Name string `xml:"name,attr"`
}

func main() {
    user := User{123, "will"}
    bytes, _ := xml.Marshal(&user)
    fmt.Println(string(bytes))  // <User name="will"><id>123</id></User>
}

Encoding

type User struct {
    Id   int    `xml:"id"`
    Name string `xml:"name,attr"`
}

func main() {
    var user User
    encoded := []byte(`<User name="foo"><id>123</id></User>`)
    xml.Unmarshal(encoded, &user)
    fmt.Println(user)
}