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src/utils/wxMiniAuth.js

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+import { postUserWxMiniAuth } from '@/api/user'
+import { saveAuthSession } from '@/utils/session'
+
+/**
+ * 微信小程序：`uni.login` → `/user/wxMiniAuth` → 写入 token
+ * @param {{ silent?: boolean }} [opts] silent=true：不触发全局 loading、不弹业务/网络失败 Toast（适合 App 启动静默登录）
+ * @returns {Promise<boolean>} 是否登录成功
+ */
+export async function tryWxMiniProgramAuth(opts = {}) {
+  const silent = opts.silent === true
+  const reqExtra = silent
+    ? { skipLoading: true, skipBizToast: true }
+    : undefined
+
+  const loginRes = await new Promise((resolve, reject) => {
+    uni.login({
+      provider: 'weixin',
+      success: resolve,
+      fail: reject,
+    })
+  })
+  if (!loginRes?.code) {
+    if (!silent)
+      uni.showToast({ title: '未获取到微信登录凭证', icon: 'none' })
+    return false
+  }
+
+  const res = await postUserWxMiniAuth({ code: loginRes.code }, reqExtra)
+  if (res && res.code === 200 && res.data) {
+    saveAuthSession(res.data)
+    return true
+  }
+  return false
+}