fix and code

app/user/cmd/api/desc/pay.api

@@ -7,15 +7,12 @@ info (
 	email:   "2440983361@qq.com"
 	version: "v1"
 )
-import (
-	"pay/pay.api"
-)
+
 @server (
 	prefix: api/v1
 	group:  pay
 )
 service main {
-
 	// 微信支付回调
 	@handler WechatPayCallback
 	post /pay/wechat/callback
@@ -42,4 +39,23 @@ service main {
 
 	@handler IapCallback
 	post /pay/iap_callback (IapCallbackReq)
-}
+}
+
+type (
+	PaymentReq {
+		Id        string `json:"id"`
+		PayMethod string `json:"pay_method"`
+	}
+	PaymentResp {
+		PrepayData interface{} `json:"prepay_data"`
+		PrepayId   string      `json:"prepay_id"`
+		OrderID    int64       `json:"order_id"`
+	}
+)
+
+type (
+	IapCallbackReq {
+		OrderID            int64  `json:"order_id" validate:"required"`
+		TransactionReceipt string `json:"transaction_receipt" validate:"required"`
+	}
+)