add authentication endpoints and Redis integration

internal/config/config.go

@@ -0,0 +1,52 @@
+package config
+
+import (
+	"github.com/joho/godotenv"
+	"github.com/spf13/viper"
+	"log"
+)
+
+type Config struct {
+	App struct {
+		Port int
+	}
+	Redis struct {
+		Host     string
+		Port     int
+		DB       int
+		Password string
+	}
+	Hydra struct {
+		Host     string
+		Password string
+	}
+}
+
+var Cfg *Config
+
+func Init() {
+	err := godotenv.Load()
+	if err != nil {
+		log.Println("Error loading .env file")
+	}
+	viper.SetConfigName("config")
+	viper.SetConfigType("yaml")
+	viper.AddConfigPath(".")
+
+	err = viper.ReadInConfig()
+	if err != nil {
+		log.Fatalf("Error reading config file, %s", err)
+	}
+
+	viper.AutomaticEnv()
+	var config Config
+
+	_ = viper.BindEnv("redis.password", "REDIS_PASSWORD")
+	_ = viper.BindEnv("hydra.password", "HYDRA_PASSWORD")
+
+	err = viper.Unmarshal(&config)
+	if err != nil {
+		log.Fatalf("Unable to decode config into struct, %v", err)
+	}
+	Cfg = &config
+}