use port supplied to the program by tags

main.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"database/sql"
+	"flag"
 	"github.com/gin-gonic/gin"
 	_ "github.com/mattn/go-sqlite3"
 	"net/http"
@@ -246,6 +247,9 @@ func getUserPoints(c *gin.Context) {
 }
 
 func main() {
+	var port string
+	flag.StringVar(&port, "port", "localhost:8080", "define the port you want the program to use to serve")
+	flag.Parse()
 	//release mode
 	//gin.SetMode(gin.ReleaseMode)
 	router := gin.Default()
@@ -265,7 +269,7 @@ func main() {
 	})
 	router.Static("/frontend", "./frontend")
 
-	router.Run("localhost:8080")
+	router.Run(port)
 }
 
 func checkErr(err error) {