JSON unmarshal in go

json-unmarshal.go

package main

import (
  "fmt"
  "encoding/json"
  "os"
  "io/ioutil"
)

/*
{
  "records" : [
    {
      "id" : 2341213123,
      "person" : {
        "name" : "John Doe"
      }
    },
    {
      "id" : 2578424523,
      "person" : {
        "name" : "Jane Doe"
      }
    } 
  ]
}
*/

type jsonobject struct {
  Records []RecordsType
}

type RecordsType struct {
  Id int
  Person PersonType
}

type PersonType struct {
  Name string
}

func main() {

    file, e := ioutil.ReadFile("./ex.json")
    if e != nil {
        fmt.Printf("Read/parse error: %v\n", e)
        os.Exit(1)
    }

    var jsondata jsonobject
    json.Unmarshal(file, &jsondata)
    for i := range jsondata.Records {
      fmt.Printf("Name: %v\n", jsondata.Records[i].Person.Name)
    }

}