Mastering Go - Second Edition

Using Marshal() and Unmarshal()

In this subsection, you will see how to use the Marshal() and Unmarshal() methods in order to implement the functionality of readJSON.go and writeJSON.go. The Go code that illustrates the Marshal() and Unmarshal() functions can be found in mUJSON.go, and it will be presented in three parts.

The first part of mUJSON.go is as follows:

package main 
 
import ( 
    "encoding/json" 
    "fmt" 
) 
 
type Record struct { 
    Name    string 
    Surname string 
    Tel     []Telephone 
} 
 
type Telephone struct { 
    Mobile bool 
    Number string 
} 

In this part of the program, we are defining two structures named Record and Telephone, which will be used for storing the data that will be put into a JSON record.

The second part of mUJSON.go is as follows:

func main() ...