How to Create XML Elements without Closing Tags in Go?

Create XML Element without Closing Tag in Go

In this scenario, you have a nested Go struct that represents an XML envelope with nested elements.

// TierRequest is the outer most XML envelope of soap request
type TierRequest struct {
    XMLName   xml.Name `xml:"soapenv:Envelope"`
    NsEnv     string   `xml:"xmlns:soapenv,attr"`
    NsType    string   `xml:"xmlns:typ,attr"`
    Header    string   `xml:"soapenv:Header"`
    Body      TierBody `xml:"soapenv:Body"`
}

// TierBody is an emtpy container with the GetCollectorProfile struct
type TierBody struct {
    GetCollectorProfiles GetCollectorProfile `Collectorxml:"typ:GetCollectorProfileRequest"`
}

// GetCollectorProfile struct has the context and collector number
type GetCollectorProfile struct {
    Contexts CollectorContext `xml:"typ:Context"`
    Number   int              `xml:"typ:CollectorNumber"`
}

// CollectorContext contanins a few variables as attributes
type CollectorContext struct {
    Channel  string `xml:"Channel,attr"`
    Source   string `xml:"Source,attr"`
    Language string `xml:"LanguageCode,attr"`
}

You marshal this struct to XML using encoding/xml, but you want to get rid of the closing tags for soapenv:Header and typ:Context to have empty element tags like <soapenv:Header/>.

There is no XML-level difference between these two forms, as an empty element tag is functionally equivalent to an end-tag for an element with no content. In other words, the content of the XML will be the same in either case:

<soapenv:Header></soapenv:Header>

<soapenv:Header/>

Therefore, it is not possible to control the use of empty element tags versus end-tags using standard XML techniques.

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