微信小程序支付功能打通

server/dukang-api/src/integrations/wechat/wechat.api.provider.ts

@@ -50,7 +50,7 @@ export class WechatApiProvider implements IWechatProvider {
     const cfg = loadAppConfig();
     return (
       !cfg.mockPay &&
-      !!this.appId &&
+      !!(this.miniAppId || this.appId) &&
       !!this.mchId &&
       !!this.mchSerialNo &&
       !!this.mchPrivateKey &&
@@ -288,6 +288,7 @@ export class WechatApiProvider implements IWechatProvider {
     amountFen: number;
     openId: string;
     notifyUrl: string;
+    platform?: 'h5' | 'mini';
   }) {
     if (!this.isPayEnabled()) {
       throw new InternalServerErrorException(
@@ -298,8 +299,17 @@ export class WechatApiProvider implements IWechatProvider {
     if (!notifyUrl) {
       throw new InternalServerErrorException('请配置 WX_PAY_NOTIFY_URL');
     }
+    const platform = params.platform ?? 'h5';
+    const payAppId = platform === 'mini' ? this.miniAppId || this.appId : this.appId || this.miniAppId;
+    if (!payAppId) {
+      throw new InternalServerErrorException(
+        platform === 'mini'
+          ? '小程序支付未配置：请设置 WX_MINI_APP_ID'
+          : '微信支付未配置：请设置 WX_APP_ID',
+      );
+    }
     const body = {
-      appid: this.miniAppId || this.appId,
+      appid: payAppId,
       mchid: this.mchId,
       description: params.description,
       out_trade_no: params.orderNo,
@@ -329,13 +339,13 @@ export class WechatApiProvider implements IWechatProvider {
     const timeStamp = String(Math.floor(Date.now() / 1000));
     const nonceStr = randomUUID().replace(/-/g, '');
     const packageStr = `prepay_id=${res.prepay_id}`;
-    const message = `${this.appId}\n${timeStamp}\n${nonceStr}\n${packageStr}\n`;
+    const message = `${payAppId}\n${timeStamp}\n${nonceStr}\n${packageStr}\n`;
     const sign = createSign('RSA-SHA256');
     sign.update(message);
     sign.end();
     const paySign = sign.sign(this.mchPrivateKey, 'base64');
     return {
-      appId: this.appId,
+      appId: payAppId,
       timeStamp,
       nonceStr,
       package: packageStr,

server/dukang-api/src/integrations/wechat/wechat.interface.ts

@@ -73,6 +73,7 @@ export interface IWechatProvider {
     amountFen: number;
     openId: string;
     notifyUrl: string;
+    platform?: 'h5' | 'mini';
   }): Promise<WechatJsapiPrepayParams>;
 
   /** 解析并验签支付回调通知 */

server/dukang-api/src/integrations/wechat/wechat.router.provider.ts

@@ -75,6 +75,7 @@ export class WechatRouterProvider implements IWechatProvider {
     amountFen: number;
     openId: string;
     notifyUrl: string;
+    platform?: 'h5' | 'mini';
   }) {
     return this.resolve().createJsapiPrepay(params);
   }