feat: set up project

kit/cfg/config.go

@@ -0,0 +1,48 @@
+package cfg
+
+import (
+	"log"
+
+	"github.com/joho/godotenv"
+	"github.com/kelseyhightower/envconfig"
+)
+
+type Config struct {
+	LogFile          bool   `required:"false" split_words:"true"`
+	Host             string `required:"true" split_words:"true"`
+	DbAddress        string `required:"true" split_words:"true"`
+	DbName           string `required:"true" split_words:"true"`
+	OrdersCollection string `required:"true" split_words:"true"`
+	RpcZmq           string `required:"true" split_words:"true"`
+	RpcAuth          string `required:"true" split_words:"true"`
+	RpcHost          string `required:"true" split_words:"true"`
+	WalletAddress    string `required:"true" split_words:"true"`
+	ApiPort          string `required:"true" split_words:"true"`
+	Views            string `required:"true" split_words:"true"`
+	ConversorApi     string `required:"true" split_words:"true"`
+	DollarRateApi    string `required:"true" split_words:"true"`
+	MailHost         string `required:"true" split_words:"true"`
+	MailPort         string `required:"true" split_words:"true"`
+	MailUser         string `required:"true" split_words:"true"`
+	MailPassword     string `required:"true" split_words:"true"`
+	MailFrom         string `required:"true" split_words:"true"`
+	MailTemplatesDir string `required:"true" split_words:"true"`
+	MailTo           string `required:"false" split_words:"true"`
+}
+
+func NewConfig(envFile string) *Config {
+	if envFile != "" {
+		err := godotenv.Load(envFile)
+		if err != nil {
+			log.Fatalln("godotenv.Load:", err)
+		}
+	}
+
+	cfg := &Config{}
+	err := envconfig.Process("", cfg)
+	if err != nil {
+		log.Fatalf("envconfig.Process: %s\n", err)
+	}
+
+	return cfg
+}