initial commit

sql/client.go

@@ -0,0 +1,39 @@
+package sql
+
+import (
+	"context"
+	"database/sql"
+	_ "github.com/mattn/go-sqlite3"
+)
+
+type SqlDb struct {
+	db      *sql.DB
+	created bool
+}
+
+var dbConnection SqlDb
+
+func NewDb(file string) (*SqlDb, error) {
+	if dbConnection.created {
+		return &dbConnection, nil
+	}
+
+	db, err := sql.Open("sqlite3", file)
+	if err != nil {
+		return nil, err
+	}
+
+	dbConnection.db = db
+	dbConnection.created = true
+
+	_, err = dbConnection.db.Conn(context.Background())
+	if err != nil {
+		return nil, err
+	}
+
+	return &dbConnection, nil
+}
+
+func GetDb() *SqlDb {
+	return &dbConnection
+}