package setting // Alipay direct integration (via Alipay+ / international Alipay API) var ( AlipayEnabled bool AlipayAppId string AlipayPrivateKey string AlipayPublicKey string AlipayNotifyUrl string AlipayReturnUrl string AlipayUnitPrice float64 = 1.0 AlipayMinTopUp int = 1 AlipaySandbox bool AlipaySandboxAppId string AlipaySandboxPrivateKey string )