Golang writing struct to JSON file
The json package has a
MarshalIndent() function which is used to serialized values from a struct and write them to a file in JSON format.
Example
package main
import (
"encoding/json"
"io/ioutil"
)
type Salary struct {
Basic, HRA, TA float64
}
type Employee struct {
FirstName, LastName, Email string
Age int
MonthlySalary []Salary
}
func main() {
data := Employee{
FirstName: "Mark",
LastName: "Jones",
Email: "mark@gmail.com",
Age: 25,
MonthlySalary: []Salary{
Salary{
Basic: 15000.00,
HRA: 5000.00,
TA: 2000.00,
},
Salary{
Basic: 16000.00,
HRA: 5000.00,
TA: 2100.00,
},
Salary{
Basic: 17000.00,
HRA: 5000.00,
TA: 2200.00,
},
},
}
file, _ := json.MarshalIndent(data, "", " ")
_ = ioutil.WriteFile("test.json", file, 0644)
}
Output
{
"FirstName": "Mark",
"LastName": "Jones",
"Email": "mark@gmail.com",
"Age": 25,
"MonthlySalary": [
{
"Basic": 15000,
"HRA": 5000,
"TA": 2000
},
{
"Basic": 16000,
"HRA": 5000,
"TA": 2100
},
{
"Basic": 17000,
"HRA": 5000,
"TA": 2200
}
]
}