feat: add support for SQLite database

store/store.go

@@ -22,11 +22,11 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"gorm.io/gorm/logger"
-	"os"
-
 	"gorm.io/driver/postgres"
+	"gorm.io/driver/sqlite"
 	"gorm.io/gorm"
+	"gorm.io/gorm/logger"
+	"os"
 )
 
 type Store struct {
@@ -58,14 +58,16 @@ func postgresConnectionString(cfg DBConfig) (conn string) {
 }
 
 func openDB(cfg DBConfig) (db *gorm.DB, err error) {
-	var conn string
 	switch cfg.Type {
 	case "postgres":
-		conn = postgresConnectionString(cfg)
-
+		conn := postgresConnectionString(cfg)
 		if db, err = gorm.Open(postgres.Open(conn), &gorm.Config{Logger: logger.Default.LogMode(cfg.LogLevel)}); err != nil {
 			return nil, errors.New("failed to connect to database: " + err.Error())
 		}
+	case "sqlite3":
+		if db, err = gorm.Open(sqlite.Open(":memory:"), &gorm.Config{}); err != nil {
+			return nil, errors.New("failed to open database: " + err.Error())
+		}
 	default:
 		return nil, errors.New("unknown database engine: " + cfg.Type)
 	}