init

internal/adapter/config/helper.go

@@ -0,0 +1,44 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+	"time"
+
+	"github.com/aykhans/oh-my-chat/internal/adapter/logger"
+	"github.com/aykhans/oh-my-chat/internal/core/utils"
+)
+
+var log = logger.NewStdLogger()
+
+func GetEnvOrDie(key string) string {
+	value := os.Getenv(key)
+	if value == "" {
+		log.Error(
+			"Error get environment variable",
+			"error",
+			fmt.Errorf("Environment variable "+key+" is not set"),
+		)
+		utils.ExitErr()
+	}
+	return value
+}
+
+func Str2IntOrDie(value string) int {
+	intValue, err := strconv.Atoi(value)
+	if err != nil {
+		log.Error("Error convert string to int", "error", err)
+		utils.ExitErr()
+	}
+	return intValue
+}
+
+func Str2DurationOrDie(value string) *time.Duration {
+	duration, err := time.ParseDuration(value)
+	if err != nil {
+		log.Error("Error convert string to duration", "error", err)
+		utils.ExitErr()
+	}
+	return &duration
+}