I'm trying to decode the following xml. For some reasons I can't decode the Id
package main
import (
"encoding/xml"
"fmt"
)
var data = `
<g xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ad="http://www.myschema.com/schema/ad/v1">
<a xlink:href="http://example.com" data-bind="121">lala</a>
<ad:ad id="1060469006">
</g>
`
type Anchor struct {
DataBind int `xml:"data-bind,attr"`
XlinkHref string `xml:"http://www.w3.org/1999/xlink href,attr"`
Id int `xml:"http://www.myschema.com/schema/ad/v1 id,attr"`
}
type Group struct {
A Anchor `xml:"a"`
}
func main() {
group := Group{}
_ = xml.Unmarshal([]byte(data), &group)
fmt.Printf("%#v\n", group.A)
}
The structs you are decoding into are looking for a ad:id
attribute on the <a>
element in the XML. There are two reasons this isn't working:
id
attribute is on a different element. id
attribute is not in the http://www.myschema.com/schema/ad/v1
namespace. Attributes without a namespace prefix do not inherit the namespace of their element: instead they are part of the blank namespace. So to fix this, first you need another field in Group
with the tag xml:"http://www.myschema.com/schema/ad/v1 ad"
, and the struct definition for that field needs its own field with the tag xml:"id,attr"
.
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