搭建用户体系

backend/internal/db/db.go

@@ -0,0 +1,27 @@
+package db
+
+import (
+	"fmt"
+
+	"gorm.io/driver/postgres"
+	"gorm.io/gorm"
+	"gorm.io/gorm/logger"
+)
+
+func Init(databaseURL string) (*gorm.DB, error) {
+	db, err := gorm.Open(postgres.Open(databaseURL), &gorm.Config{
+		Logger: logger.Default.LogMode(logger.Silent),
+	})
+	if err != nil {
+		return nil, fmt.Errorf("open database: %w", err)
+	}
+
+	sqlDB, err := db.DB()
+	if err != nil {
+		return nil, err
+	}
+	sqlDB.SetMaxIdleConns(10)
+	sqlDB.SetMaxOpenConns(100)
+
+	return db, nil
+}