govald example

test.go

package main

import (
    "fmt"
    "github.com/mitchellh/mapstructure"
    gv "govald/govald"
)

type User struct {
    Username string
    Email    string
}

func main() {
    schema := gv.Define(
        "user",
        gv.Define("username").
            Default(func() interface{} { return "admin" }).
            Min(5).
            Max(25),
        gv.Define("email").
            Default(func() interface{} { return "[email protected]" }).
            Email(nil),
    )

    err, raw := schema.ParseFile("./test.json5")

    if err != nil {
        fmt.Println(err)
    }

    var user User
    err = mapstructure.Decode(raw, &user)

    if err != nil {
        fmt.Println(err)
    }

    fmt.Printf("User: [%s, %s]\n", user.Username, user.Email)

}