Golang golang-xml (snippet)

Go programming example 'golang-xml'

golang-xml

Golang beginners example: golang-xml

package main

import (
    "encoding/xml"
    "fmt"
    "strings"
)

func (c *classAccessesMap) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
    c.Map = map[string]string{}
    val := ""

    for {
        t, _ := d.Token()
        switch tt := t.(type) {

        case xml.StartElement:

        case xml.EndElement:
            if tt.Name == start.Name {
                return nil
            }
            c.Map[tt.Name.Local] = val
        default:
            val = strings.TrimSpace(fmt.Sprintf("%s", tt))
        }
    }
}

func ParseDocumentXML(xmlString string) Variables {
    m := Variables{}
    xml.Unmarshal([]byte(xmlString), &m)
    return m
}

type Variables struct {
    Head Head
    Data classAccessesMap `xml:"Data"`
}

type Head struct {
    Name string
    IP   string
}

type classAccessesMap struct {
    Map map[string]string
}

func main() {
    txt := `
        <Variables>
       <Head>
           <Name>WKS001</Name>
           <IP>192.168.178.23</IP>
       </Head>
       <Data>
           <POSNR>10</POSNR>
           <AUFNR>103002</AUFNR>
           <KUNNR>332401</KUNNR>
           <ZTXT1>lorem</ZTXT1>
           <ZTXT2>ipsum</ZTXT2>
           <ZTXT3>dolor</ZTXT3>
           <ZTXT4>sit a</ZTXT4>
       </Data>
    </Variables>
        `
    m := Variables{}
    xml.Unmarshal([]byte(txt), &m)

    fmt.Printf("xml: %#v\n", m)
    for a, b := range m.Data.Map {
        fmt.Printf("key: %s, value: %s\n", a, b)
    }
}

Useful links

Learn Go: https://golangr.com
Download Go: https://golang.org