嵌入式JSON结构

Question

Here my struct

    type studentData struct {
        Name  string `bson:"name"`
        Grade int    `bson:"Grade"`
    }

    type student struct {
        student []studentData `json:"student"`
    }

I need my JSON result like this

{
  "array": [
    {
      "Name": "ethan",
      "Grade": 2
    },
    {
      "Name": "rangga",
      "Grade": 2
    }
  ]
}

I get the data from mongoDB, already tried to search but did not found that i need, could someone help me?

Answer 1

Although your JSON doesn't make a lot of sense, this will output the exact JSON you want:

package main

import (
    "encoding/json"
    "os"
)

type Student struct {
    Name  string `json:"name"`
    Grade int    `json:"Grade"`
}

type Students struct {
    Array []Student `json:"array"`
}

func main() {

    student1 := Student{
        Name: "Josh",
        Grade: 2,
    }

    student2 := Student{
        Name: "Sarah",
        Grade: 4,
    }

    students := Students{
        Array: []Student{student1, student2},
    }

    b, err := json.Marshal(students)
    if err != nil {
        panic(err)
    }

    os.Stdout.Write(b)
}

Try the code here https://play.golang.org/p/PcPZOuxJUM