Add .env file for managing environment variables in the project

go.mod

@@ -17,5 +17,6 @@ require (
 	github.com/gorilla/securecookie v1.1.2 // indirect
 	github.com/jinzhu/inflection v1.0.0 // indirect
 	github.com/jinzhu/now v1.1.5 // indirect
+	github.com/joho/godotenv v1.5.1 // indirect
 	golang.org/x/text v0.14.0 // indirect
 )

go.sum

@@ -18,6 +18,8 @@ github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD
 github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
 github.com/jinzhu/now v1.1.5 h1:/o9tlHleP7gOFmsnYNz3RGnqzefHA47wQpKrrdTIwXQ=
 github.com/jinzhu/now v1.1.5/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
 golang.org/x/crypto v0.21.0 h1:X31++rzVUdKhX5sWmSOFZxx8UW/ldWx55cbf08iNAMA=
 golang.org/x/crypto v0.21.0/go.mod h1:0BP7YvVV9gBbVKyeTG0Gyn+gZm94bibOW5BjDEYAOMs=
 golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=

main.go

@@ -6,16 +6,24 @@ import (
 	"github.com/fossyy/cutit/db"
 	_ "github.com/fossyy/cutit/db"
 	"github.com/fossyy/cutit/routes"
+	"github.com/fossyy/cutit/utils"
 )
 
 func main() {
 	handler := routes.Setup()
-	database := db.NewMYSQLdb("root", "Password123", "localhost", "3306", "testaja")
-	server := app.NewApp("0.0.0.0:8000", handler, database)
+	serverAddr := fmt.Sprintf("%s:%s", utils.Getenv("SERVER_HOST"), utils.Getenv("SERVER_PORT"))
+
+	dbUser := utils.Getenv("DB_USERNAME")
+	dbPass := utils.Getenv("DB_PASSWORD")
+	dbHost := utils.Getenv("DB_HOST")
+	dbPort := utils.Getenv("DB_PORT")
+	dbName := utils.Getenv("DB_NAME")
+	database := db.NewMYSQLdb(dbUser, dbPass, dbHost, dbPort, dbName)
+	server := app.NewApp(serverAddr, handler, database)
 
 	app.Server = server
 
-	fmt.Printf("Listening on http://%s\n", server.Addr)
+	fmt.Printf("Listening on http://%s\n", serverAddr)
 	err := server.ListenAndServe()
 	if err != nil {
 		return

utils/request.go → utils/utils.go

@@ -1,13 +1,28 @@
 package utils
 
 import (
+	"fmt"
+	"github.com/joho/godotenv"
 	"golang.org/x/crypto/bcrypt"
 	"math/rand"
 	"net/http"
+	"os"
 	"strings"
+	"sync"
 	"time"
 )
 
+type Env struct {
+	value map[string]string
+	mu    sync.Mutex
+}
+
+var env *Env
+
+func init() {
+	env = &Env{value: map[string]string{}}
+}
+
 func ClientIP(request *http.Request) string {
 	ip := request.Header.Get("X-Real-IP")
 	if ip == "" {
@@ -50,3 +65,23 @@ func GenerateRandomString(length int) string {
 	}
 	return result.String()
 }
+
+func Getenv(key string) string {
+	env.mu.Lock()
+	defer env.mu.Unlock()
+	if val, ok := env.value[key]; ok {
+		return val
+	}
+
+	if os.Getenv("HOSTNAME") == "" {
+		err := godotenv.Load(".env")
+		if err != nil {
+			fmt.Printf("Error loading .env file: %s \n", err)
+		}
+	}
+
+	val := os.Getenv(key)
+	env.value[key] = val
+
+	return val
+}