json.go

package main
import (
    "fmt"
    "encoding/json"
)

/* terms:
    - Marshaling = Encoding
   links:
    - https://www.sohamkamani.com/golang/json/
*/

type Person struct {
  Name string `json:"username"`
}

func main() {
    myDocJSON  := `[{"username":"Abdulrahman"},{"username":"Mary"}]`
    var persons []Person
    json.Unmarshal([]byte(myDocJSON), &persons)

    fmt.Println(persons[1])

    unstructuredJSON := `{"birds":{"pigeon":"likes to perch on               
      rocks","eagle":"bird of prey"},"animals":"none"}`
    var data map[string]interface{}
    json.Unmarshal([]byte(unstructuredJSON), &data)
    birds := data["birds"].(map[string]interface{})
    fmt.Println(birds)

  // Marshaling
  personJSON := &Person{
    Name : "Abdulrahman",
  }
  marshalledPersons, _ := json.Marshal([]*Person{personJSON,personJSON})
  fmt.Println(string(marshalledPersons))
}