新增 APP下单API

samples/WebApplicationSample/Controllers/WeChatPayController.cs

@@ -637,5 +637,55 @@ namespace WebApplicationSample.Controllers
             ViewData["response"] = response.Body;
             return View();
         }
+
+        /// <summary>
+        /// APP支付V3
+        /// </summary>
+        [HttpGet]
+        public IActionResult AppPayV3()
+        {
+            return View();
+        }
+
+        /// <summary>
+        /// APP支付V3
+        /// </summary>
+        /// <param name="viewModel"></param>
+        [HttpPost]
+        public async Task<IActionResult> AppPayV3(WeChatPayAppPayV3ViewModel viewModel)
+        {
+            var model = new WeChatPayTransactionsAppModel
+            {
+                AppId = _optionsAccessor.Value.AppId,
+                MchId = _optionsAccessor.Value.MchId,
+                Amount = new Amount { Total = viewModel.Total, Currency = "CNY" },
+                Description = viewModel.Description,
+                NotifyUrl = viewModel.NotifyUrl,
+                OutTradeNo = viewModel.OutTradeNo,
+            };
+
+            var request = new WeChatPayTransactionsAppRequest();
+            request.SetBizModel(model);
+
+            var response = await _client.ExecuteAsync(request, _optionsAccessor.Value);
+
+            if (!string.IsNullOrEmpty(response.PrepayId))
+            {
+                var req = new WeChatPayAppSdkRequest
+                {
+                    PrepayId = response.PrepayId
+                };
+
+                var parameter = await _client.ExecuteAsync(req, _optionsAccessor.Value);
+
+                // 将参数(parameter)给 ios/android端 让他调起微信APP(https://pay.weixin.qq.com/wiki/doc/api/app/app.php?chapter=8_5)
+                ViewData["parameter"] = JsonSerializer.Serialize(parameter);
+                ViewData["response"] = response.Body;
+                return View();
+            }
+
+            ViewData["response"] = response.Body;
+            return View();
+        }
     }
 }

samples/WebApplicationSample/Models/WeChatPayViewModel.cs

@@ -333,6 +333,25 @@ namespace WebApplicationSample.Models
         public string PartnerTradeNo { get; set; }
     }
 
+    public class WeChatPayAppPayV3ViewModel
+    {
+        [Required]
+        [Display(Name = "out_trade_no")]
+        public string OutTradeNo { get; set; }
+
+        [Required]
+        [Display(Name = "description")]
+        public string Description { get; set; }
+
+        [Required]
+        [Display(Name = "total")]
+        public int Total { get; set; }
+
+        [Required]
+        [Display(Name = "notify_url")]
+        public string NotifyUrl { get; set; }
+    }
+
     public class WeChatPayQrCodePayV3ViewModel
     {
         [Required]

samples/WebApplicationSample/Views/WeChatPay/AppPayV3.cshtml

@@ -0,0 +1,49 @@
+@model WeChatPayAppPayV3ViewModel
+@{
+    ViewData["Title"] = "APP支付-APP下单API";
+}
+<nav aria-label="breadcrumb">
+    <ol class="breadcrumb">
+        <li class="breadcrumb-item"><a asp-controller="WeChatPay" asp-action="Index">微信支付</a></li>
+        <li class="breadcrumb-item active" aria-current="page">@ViewData["Title"]</li>
+    </ol>
+</nav>
+<br />
+<div class="card">
+    <div class="card-body">
+        <form asp-controller="WeChatPay" asp-action="AppPayV3">
+            <div asp-validation-summary="All" class="text-danger"></div>
+            <div class="form-group">
+                <label asp-for="OutTradeNo"></label>
+                <input type="text" class="form-control" asp-for="OutTradeNo" value="@DateTime.Now.ToString("yyyyMMddHHmmssfff")" />
+            </div>
+            <div class="form-group">
+                <label asp-for="Description"></label>
+                <input type="text" class="form-control" asp-for="Description" value="微信APP支付测试" />
+            </div>
+            <div class="form-group">
+                <label asp-for="Total"></label>
+                <input type="text" class="form-control" asp-for="Total" value="1" />
+            </div>
+            <div class="form-group">
+                <label asp-for="NotifyUrl"></label>
+                <input type="text" class="form-control" asp-for="NotifyUrl" value="http://*/notify/wechatpay/v3/transactions" />
+            </div>
+            <button type="submit" class="btn btn-primary">提交请求</button>
+        </form>
+        <hr />
+        <form class="form-horizontal">
+            <div class="form-group">
+                <label>Response:</label>
+                <textarea class="form-control" rows="10">@ViewData["response"]</textarea>
+            </div>
+            <div class="form-group">
+                <label>Parameter:</label>
+                <textarea class="form-control" rows="3">@ViewData["parameter"]</textarea>
+            </div>
+        </form>
+    </div>
+</div>
+@section Scripts {
+    @{await Html.RenderPartialAsync("_ValidationScriptsPartial"); }
+}

samples/WebApplicationSample/Views/WeChatPay/Index.cshtml

@@ -134,6 +134,12 @@
         </tr>
         <tr>
             <th scope="row">20</th>
+            <td>APP支付-App下单</td>
+            <td><a href="https://pay.weixin.qq.com/wiki/doc/apiv3/wxpay/pay/transactions/chapter3_1.shtml" target="_blank">https://api.mch.weixin.qq.com/v3/pay/transactions/app</a></td>
+            <td><a asp-controller="WeChatPay" asp-action="AppPayV3">立即测试</a></td>
+        </tr>
+        <tr>
+            <th scope="row">21</th>
             <td>扫码支付-Native下单</td>
             <td><a href="https://pay.weixin.qq.com/wiki/doc/apiv3/wxpay/pay/transactions/chapter3_3.shtml" target="_blank">https://api.mch.weixin.qq.com/v3/pay/transactions/native</a></td>
             <td><a asp-controller="WeChatPay" asp-action="QrCodePayV3">立即测试</a></td>

src/Essensoft.AspNetCore.Payment.WeChatPay/Domain/WeChatPayTransactionsAppModel.cs

@@ -0,0 +1,99 @@
+using System.Text.Json.Serialization;
+
+namespace Essensoft.AspNetCore.Payment.WeChatPay.Domain
+{
+    /// <summary>
+    /// APP下单API-请求参数
+    /// 最新更新时间：2020.05.26
+    /// https://pay.weixin.qq.com/wiki/doc/apiv3/wxpay/pay/transactions/chapter3_1.shtml
+    /// </summary>
+    public class WeChatPayTransactionsAppModel : WeChatPayObject
+    {
+        /// <summary>
+        /// 公众号ID
+        /// 直连商户申请的公众号或移动应用appid。
+        /// 示例值：wxd678efh567hg6787
+        /// </summary>
+        [JsonPropertyName("appid")]
+        public string AppId { get; set; }
+
+        /// <summary>
+        /// 直连商户号
+        /// 直连商户的商户号，由微信支付生成并下发。
+        /// 示例值：1230000109
+        /// </summary>
+        [JsonPropertyName("mchid")]
+        public string MchId { get; set; }
+
+        /// <summary>
+        /// 商品描述
+        /// 商品描述
+        /// 示例值：Image形象店-深圳腾大-QQ公仔
+        /// </summary>
+        [JsonPropertyName("description")]
+        public string Description { get; set; }
+
+        /// <summary>
+        /// 商户订单号
+        /// 商户系统内部订单号，只能是数字、大小写字母_-*且在同一个商户号下唯一，详见【商户订单号】。
+        /// 特殊规则：最小字符长度为6
+        /// 示例值：1217752501201407033233368018
+        /// </summary>
+        [JsonPropertyName("out_trade_no")]
+        public string OutTradeNo { get; set; }
+
+        /// <summary>
+        /// 交易结束时间
+        /// 订单失效时间，遵循rfc3339标准格式，格式为YYYY-MM-DDTHH:mm:ss+TIMEZONE，YYYY-MM-DD表示年月日，T出现在字符串中，表示time元素的开头，HH:mm:ss表示时分秒，TIMEZONE表示时区（+08:00表示东八区时间，领先UTC 8小时，即北京时间）。例如：2015-05-20T13:29:35+08:00表示，北京时间2015年5月20日 13点29分35秒。
+        /// 示例值：2018-06-08T10:34:56+08:00
+        /// </summary>
+        [JsonPropertyName("time_expire")]
+        public string TimeExpire { get; set; }
+
+        /// <summary>
+        /// 附加数据
+        /// 附加数据，在查询API和支付通知中原样返回，可作为自定义参数使用
+        /// 示例值：自定义数据
+        /// </summary>
+        [JsonPropertyName("attach")]
+        public string Attach { get; set; }
+
+        /// <summary>
+        /// 通知地址
+        /// 通知URL必须为直接可访问的URL，不允许携带查询串。
+        /// 格式：URL
+        /// 示例值：https://www.weixin.qq.com/wxpay/pay.php
+        /// </summary>
+        [JsonPropertyName("notify_url")]
+        public string NotifyUrl { get; set; }
+
+        /// <summary>
+        /// 订单优惠标记
+        /// 订单优惠标记
+        /// 示例值：WXG
+        /// </summary>
+        [JsonPropertyName("goods_tag")]
+        public string GoodsTag { get; set; }
+
+        /// <summary>
+        /// 订单金额
+        /// 订单金额信息
+        /// </summary>
+        [JsonPropertyName("amount")]
+        public Amount Amount { get; set; }
+
+        /// <summary>
+        /// 优惠功能
+        /// 优惠功能
+        /// </summary>
+        [JsonPropertyName("detail")]
+        public Detail Detail { get; set; }
+
+        /// <summary>
+        /// 场景信息
+        /// 支付场景描述
+        /// </summary>
+        [JsonPropertyName("scene_info")]
+        public SceneInfo SceneInfo { get; set; }
+    }
+}

src/Essensoft.AspNetCore.Payment.WeChatPay/Request/WeChatPayTransactionsAppRequest.cs

@@ -0,0 +1,29 @@
+using Essensoft.AspNetCore.Payment.WeChatPay.Response;
+
+namespace Essensoft.AspNetCore.Payment.WeChatPay.Request
+{
+    /// <summary>
+    /// APP下单API
+    /// 最新更新时间：2020.05.26
+    /// https://pay.weixin.qq.com/wiki/doc/apiv3/wxpay/pay/transactions/chapter3_1.shtml
+    /// </summary>
+    public class WeChatPayTransactionsAppRequest : IWeChatPayV3PostRequest<WeChatPayTransactionsAppResponse>
+    {
+        private WeChatPayObject bizModel;
+
+        public string GetRequestUrl()
+        {
+            return "https://api.mch.weixin.qq.com/v3/pay/transactions/app";
+        }
+
+        public WeChatPayObject GetBizModel()
+        {
+            return bizModel;
+        }
+
+        public void SetBizModel(WeChatPayObject bizModel)
+        {
+            this.bizModel = bizModel;
+        }
+    }
+}

src/Essensoft.AspNetCore.Payment.WeChatPay/Response/WeChatPayTransactionsAppResponse.cs

@@ -0,0 +1,20 @@
+using System.Text.Json.Serialization;
+
+namespace Essensoft.AspNetCore.Payment.WeChatPay.Response
+{
+    /// <summary>
+    /// APP下单API-返回参数
+    /// 最新更新时间：2020.05.26
+    /// https://pay.weixin.qq.com/wiki/doc/apiv3/wxpay/pay/transactions/chapter3_1.shtml
+    /// </summary>
+    public class WeChatPayTransactionsAppResponse : WeChatPayV3Response
+    {
+        /// <summary>
+        /// 预支付交易会话标识	prepay_id
+        /// 预支付交易会话标识。
+        /// 示例值：wx201410272009395522657a690389285100
+        /// </summary>
+        [JsonPropertyName("prepay_id")]
+        public string PrepayId { get; set; }
+    }
+}