无法将json解组到其他包中导出的结构

Question

I wan´t to unmarshal json to an exported struct from other package but I does not work propertly

package anyPackage

type DataStruct struct{
    Size     int    `json:"size"`
    Material string `json:"material"`
    Date     time.Time
}

---

package main

import (
    "fmt"
    "log"
    "encoding/json"
    "customPackage/anyPackage"
)

type NewStruct struct{
    Name      string `json:"name"`
    Code      int    `json:"code"`
    ExtraData anyPackage.DataStruct
}

func main(){
    blob := `{ "name":"John", "code":12546, "material":"wood","size":456 }`

    var aux NewStruct
    if err := json.Unmarshal([]byte(blob), &aux); err != nil {
        log.Fatal(err)
    }
    fmt.Printf("%+v", aux)
}

In that case, name and code are correctly unmarshal, but material and size don´t, they are empty

Answer 1

You should be able to fix the issue by embedding the DataStruct instead of having a separate field.

type NewStruct struct{
    Name string `json:"name"`
    Code int    `json:"code"`
    anyPackage.DataStruct
}