Add Balance and Withdrawal

internal/entity/transaction.go

@@ -12,6 +12,7 @@ type Transaction struct {
 	Status          string    `gorm:"size:255"`
 	CreatedBy       int64     `gorm:"not null"`
 	UpdatedBy       int64     `gorm:"not null"`
+	Amount          float64   `gorm:"not null"`
 	CreatedAt       time.Time `gorm:"autoCreateTime"`
 	UpdatedAt       time.Time `gorm:"autoUpdateTime"`
 }