reading bool value using viper in Go

I'm using viper to manage the configurations and environment variables for a Go app .<br>
all of values are coming correct from the json config file expect the bool values are always coming false even it have a true value within the json file

{
  "database" : {
    "host" : "localhost",
    "port": "3306"
  },
  "host": "localhost",
  "port": ":3000",
  "production": true,
  "cache": true
}

the configuration package

package config

import (
	"github.com/spf13/viper"
	"html/template"
	"log"
)

type ViperConfig struct {
	Database struct {
		Host string "json:'host'"
		Port string "json:'port'"
	} "json:'database'"
	Host          string "json:'host'"
	Port          string "json:'port'"
	ProductionMod bool   "json:'production'"
	UseCache      bool   "json:'cache'"
	TemplaCache   map[string]*template.Template
}

func LoadConfig(path string) (viperconfig ViperConfig, err error) {
	viper.AddConfigPath(path)
	viper.SetConfigName("config")
	viper.SetConfigType("json")
	viper.AutomaticEnv()
	err = viper.ReadInConfig()
	if err != nil {
		log.Fatal("Can't load config file")
	}
	err = viper.Unmarshal(&viperconfig)
	return
}

all of this are working file when i tried to access any string but when tried to access the bool variables it always give false

package main

import (
	"github.com/alexedwards/scs/v2"
	"github.com/fouad82/news-api/cmd/config"
	"github.com/fouad82/news-api/cmd/routes"
	"log"
	"net/http"
	"time"
)

func main() {
	ViperConfig, err := config.LoadConfig("../")
	if err != nil {
		log.Fatal("Can't read viper configurations", err)
	}
	if err != nil {
		log.Fatal("Error Parsing template", err)
	}
	session := scs.New()
	session.Lifetime = 24 * time.Hour
	session.Cookie.Persist = true
	session.Cookie.SameSite = http.SameSiteLaxMode
	session.Cookie.Secure = ViperConfig.ProductionMod
	routes.Routes()
    // the values never gives the actuall value it always gives false
	log.Fatal(ViperConfig.UseCache, ViperConfig.ProductionMod)
	http.ListenAndServe(ViperConfig.Port, nil)
}

First the json tags are written wrong.

I think viper doesn't use json tags. It uses the mapstructure tags.
The other variables are working because the name of the variable is the same mapped on the json tags. (check this https://github.com/spf13/viper#unmarshaling)

2 solutions:

First: change the variables name

type ViperConfig struct {
    Database struct {
        Host string `json:"host"`
        Port string `json:"port"`
    } `json:"database"`
    Host          string `json:"host"`
    Port          string `json:"port"`
    Production bool   `json:"production"`
    Cache      bool   `json:"cache"`
    TemplaCache   map[string]*template.Template
}

Or use mapstructure tags

type ViperConfig struct {
    Database struct {
        Host string `json:"host"`
        Port string `json:"port"`
    } `json:"database"`
    Host          string `json:"host"`
    Port          string `json:"port"`
    ProductionMod bool   `json:"production" mapstructure:"production"`
    UseCache      bool   `json:"cache" mapstructure:"cache"`
    TemplaCache   map[string]*template.Template
}