How to Unmarshal the Entire XML Array into a Go Struct

Unmarshaling XML Arrays in Go: Retrieving All Elements

When unmarshaling an XML array into a Go struct, it's possible to retrieve only the first element. To avoid this issue and obtain the entire array, follow these steps:

XML Decoding with Multiple Iterations:

Multiple XML entities reside within the XML string. To correctly unmarshal these entities, a xml.Decoder is required. Use d.Decode multiple times to retrieve each individual entity.

Example Code:

<code class="go">d := xml.NewDecoder(bytes.NewBufferString(VV))
for {
    var t HostSystemIdentificationInfo
    err := d.Decode(&t)
    if err == io.EOF { // End of file encountered
        break
    }
    if err != nil { // Handle any decoding errors
        log.Fatal(err)
    }
    fmt.Println(t) // Each element will be printed
}</code>

XML Sample:

<code class="xml"><HostSystemIdentificationInfo>
  <identifierValue>unknown</identifierValue>
  <identifierType>
    <label>Asset Tag</label>
    <summary>Asset tag of the system</summary>
    <key>AssetTag</key>
  </identifierType>
</HostSystemIdentificationInfo>
<HostSystemIdentificationInfo>
  <identifierValue>Dell System</identifierValue>
  <identifierType>
    <label>OEM specific string</label>
    <summary>OEM specific string</summary>
    <key>OemSpecificString</key>
  </identifierType>
</HostSystemIdentificationInfo></code>

By following these steps, you can successfully unmarshal the entire XML array into a Go struct, ensuring that you retrieve all elements as intended.

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