package main import ( "encoding/json" "io/ioutil" ) //Config reads the config type Config struct { IP string `json:"ip"` Port string `json:"port"` WebServerPort string `json:"webserverport"` Mongodb MongoConfig `json:"mongodb"` } type MongoConfig struct { IP string `json:"ip"` Database string `json:"database"` } var config Config func readConfig(path string) { file, err := ioutil.ReadFile(path) check(err) content := string(file) json.Unmarshal([]byte(content), &config) }