JSON / Go to JSON type mappings / Essential Go
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package main
import (
"encoding/json"
"fmt"
"log"
)
func printSerialized(v interface{}) {
d, err := json.Marshal(v)
if err != nil {
log.Fatalf("json.Marshal failed with '%s'\n", err)
}
fmt.Printf("%T: %s\n", v, string(d))
}
func main() {
printSerialized(nil)
printSerialized(5)
printSerialized(8.23)
printSerialized("john")
ai := []int{5, 4, 18}
printSerialized(ai)
a := []interface{}{4, "string"}
printSerialized(a)
d := map[string]interface{}{
"i": 5,
"s": "foo",
}
printSerialized(d)
s := struct {
Name string
Age int
}{
Name: "John",
Age: 37,
}
printSerialized(s)
}
Go
INFO