README.md

Example for

• https://stackoverflow.com/questions/40095427/golang-parsing-xml-to-struct

$ go run main.go < rets.xml | jq .
{
  "XMLName": {
    "Space": "",
    "Local": "RETS"
  },
  "Text": "\n\n",
  "ReplyCode": "0",
  "ReplyText": "Operation successful.",
  "METADATATABLE": {
    "Text": "\n\n\n\n\n\n\n\n\n",
    "Resource": "ActiveAgent",
    "Class": "MEMB",
    "Version": "01.72.10236",
    "Date": "2011-03-03T00:29:23",
    "COLUMNS": {
      "Text": "\tMetadataEntryID\tSystemName\tStandardName\tLongName\tDBName\tShortName\tMaximumLength\tDataType\tPrecision\tSearchable\tInterpretation\tAlignment\tUseSeparator\tEditMaskID\tLookupName\tMaxSelect\tUnits\tIndex\tMinimum\tMaximum\tDefault\tRequired\tSearchHelpID\tUnique\tModTimeStamp\tForeignKeyName\tForeignField\tInKeyindex\t"
    },
    "DATA": [
      {
        "Text": "\t7\tCity\t\tCity\tCity\tCity\t11\tCharacter\t0\t1\t\tLeft\t0\t\t\t0\t\t0\t0\t0\t0\t0\tCity\t0\t0\t1\tMemberNumber\t0\t"
      },
      {
        "Text": "\t9\tContactAddlPhoneType1\t\tContact Additional Phone Type 1\tAddlPhTyp1\tContact Addl Ph Type 1\t1\tCharacter\t0\t1\tLookup\tLeft\t0\t\tContactAddlPhoneType\t0\t\t0\t0\t0\t0\t0\tContactAddlPhoneType\t0\t0\t1\tMemberNumber\t0\t"
      },
      {
        "Text": "\t11\tContactAddlPhoneType2\t\tContact Additional Phone Type 2\tAddlPhTyp2\tContact Addl Ph Type 2\t1\tCharacter\t0\t1\tLookup\tLeft\t0\t\tContactAddlPhoneType\t0\t\t0\t0\t0\t0\t0\tContactAddlPhoneType\t0\t0\t1\tMemberNumber\t0\t"
      },
      {
        "Text": "\t13\tContactAddlPhoneType3\t\tContact Additional Phone Type 3\tAddlPhTyp3\tContact Addl Ph Type 3\t1\tCharacter\t0\t1\tLookup\tLeft\t0\t\tContactAddlPhoneType\t0\t\t0\t0\t0\t0\t0\tContactAddlPhoneType\t0\t0\t1\tMemberNumber\t0\t"
      },
      {
        "Text": "\t15\tContactPhoneAreaCode1\t\tContact Phone Area Code 1\tContPhAC1\tContact Phone AC 1\t3\tCharacter\t0\t1\t\tLeft\t0\t\t\t0\t\t0\t0\t0\t0\t0\tContactPhoneAreaCode\t0\t0\t1\tMemberNumber\t0\t"
      },
      {
        "Text": "\t17\tContactPhoneAreaCode2\t\tContact Phone Area Code 2\tContPhAC2\tContact Phone AC 2\t3\tCharacter\t0\t1\t\tLeft\t0\t\t\t0\t\t0\t0\t0\t0\t0\tContactPhoneAreaCode\t0\t0\t1\tMemberNumber\t0\t"
      },
      {
        "Text": "\t19\tContactPhoneAreaCode3\t\tContact Phone Area Code 3\tContPhAC3\tContact Phone AC 3\t3\tCharacter\t0\t1\t\tLeft\t0\t\t\t0\t\t0\t0\t0\t0\t0\tContactPhoneAreaCode\t0\t0\t1\tMemberNumber\t0\t"
      }
    ]
  }
}

main.go

// curl -sL https://git.io/fN4Pq | zek -e -p
package main

import (
        "encoding/json"
        "encoding/xml"
        "fmt"
        "log"
        "os"

        "golang.org/x/net/html/charset"
)

// RETS was generated 2018-07-24 13:16:56 by tir on sol.
type RETS struct {
        XMLName       xml.Name `xml:"RETS"`
        Text          string   `xml:",chardata"`
        ReplyCode     string   `xml:"ReplyCode,attr"`
        ReplyText     string   `xml:"ReplyText,attr"`
        METADATATABLE struct {
                Text     string `xml:",chardata"`
                Resource string `xml:"Resource,attr"`
                Class    string `xml:"Class,attr"`
                Version  string `xml:"Version,attr"`
                Date     string `xml:"Date,attr"`
                COLUMNS  struct {
                        Text string `xml:",chardata"` // MetadataEntryID        SystemNam...
                } `xml:"COLUMNS"`
                DATA []struct {
                        Text string `xml:",chardata"` // 7      City            City    City    City    11...
                } `xml:"DATA"`
        } `xml:"METADATA-TABLE"`
}

func main() {
        dec := xml.NewDecoder(os.Stdin)
        dec.CharsetReader = charset.NewReaderLabel
        dec.Strict = false

        var doc RETS
        if err := dec.Decode(&doc); err != nil {
                log.Fatal(err)
        }
        b, err := json.Marshal(doc)
        if err != nil {
                log.Fatal(err)
        }
        fmt.Println(string(b))
}

rets.xml

<RETS ReplyCode="0" ReplyText="Operation successful.">
<METADATA-TABLE Resource="ActiveAgent" Class="MEMB" Version="01.72.10236" Date="2011-03-03T00:29:23">
<COLUMNS>	MetadataEntryID	SystemName	StandardName	LongName	DBName	ShortName	MaximumLength	DataType	Precision	Searchable	Interpretation	Alignment	UseSeparator	EditMaskID	LookupName	MaxSelect	Units	Index	Minimum	Maximum	Default	Required	SearchHelpID	Unique	ModTimeStamp	ForeignKeyName	ForeignField	InKeyindex	</COLUMNS>
<DATA>	7	City		City	City	City	11	Character	0	1		Left	0			0		0	0	0	0	0	City	0	0	1	MemberNumber	0	</DATA>
<DATA>	9	ContactAddlPhoneType1		Contact Additional Phone Type 1	AddlPhTyp1	Contact Addl Ph Type 1	1	Character	0	1	Lookup	Left	0		ContactAddlPhoneType	0		0	0	0	0	0	ContactAddlPhoneType	0	0	1	MemberNumber	0	</DATA>
<DATA>	11	ContactAddlPhoneType2		Contact Additional Phone Type 2	AddlPhTyp2	Contact Addl Ph Type 2	1	Character	0	1	Lookup	Left	0		ContactAddlPhoneType	0		0	0	0	0	0	ContactAddlPhoneType	0	0	1	MemberNumber	0	</DATA>
<DATA>	13	ContactAddlPhoneType3		Contact Additional Phone Type 3	AddlPhTyp3	Contact Addl Ph Type 3	1	Character	0	1	Lookup	Left	0		ContactAddlPhoneType	0		0	0	0	0	0	ContactAddlPhoneType	0	0	1	MemberNumber	0	</DATA>
<DATA>	15	ContactPhoneAreaCode1		Contact Phone Area Code 1	ContPhAC1	Contact Phone AC 1	3	Character	0	1		Left	0			0		0	0	0	0	0	ContactPhoneAreaCode	0	0	1	MemberNumber	0	</DATA>
<DATA>	17	ContactPhoneAreaCode2		Contact Phone Area Code 2	ContPhAC2	Contact Phone AC 2	3	Character	0	1		Left	0			0		0	0	0	0	0	ContactPhoneAreaCode	0	0	1	MemberNumber	0	</DATA>
<DATA>	19	ContactPhoneAreaCode3		Contact Phone Area Code 3	ContPhAC3	Contact Phone AC 3	3	Character	0	1		Left	0			0		0	0	0	0	0	ContactPhoneAreaCode	0	0	1	MemberNumber	0	</DATA>
</METADATA-TABLE>
</RETS>