From 79e6602532c58d10c90551abb5a8c5b77a3dfac6 Mon Sep 17 00:00:00 2001
From: Milad Rasouli <106727848+Milad75Rasouli@users.noreply.github.com>
Date: Sat, 16 Mar 2024 14:19:00 +0330
Subject: [PATCH] check database connection #51 (#53)

Adding a ping when database object is created to fail fast.
---
 database/database.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/database/database.go b/database/database.go
index 79b8ed2..405316b 100644
--- a/database/database.go
+++ b/database/database.go
@@ -174,13 +174,17 @@ func (db SqlDatabase) AddImage(uuid string, name string, alt string) (err error)
 }
 
 func MakeSqlConnection(user string, password string, address string, port int, database string) (SqlDatabase, error) {
-	/// Checking the DB connection
+
 	/// TODO : let user specify the DB
 	connection_str := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s", user, password, address, port, database)
 	db, err := sql.Open("mysql", connection_str)
 	if err != nil {
 		return SqlDatabase{}, err
 	}
+
+	if err := db.Ping(); err != nil {
+		return SqlDatabase{}, err
+	}
 	// See "Important settings" section.
 	db.SetConnMaxLifetime(time.Second * 5)
 	db.SetMaxOpenConns(10)