Initial Commit

cloudfunctions/login/index.js

@@ -0,0 +1,54 @@
+// 云函数入口文件
+const cloud = require('wx-server-sdk')
+
+cloud.init({ env: cloud.DYNAMIC_CURRENT_ENV })
+
+const db = cloud.database()
+
+// 云函数入口函数
+exports.main = async (event, context) => {
+  const wxContext = cloud.getWXContext()
+  const openid = wxContext.OPENID
+
+  // 查找是否已存在用户
+  const userRes = await db.collection('users').where({ _openid: openid }).get()
+
+  let user
+  if (userRes.data.length > 0) {
+    // 已存在，更新登录时间（如果传了头像昵称也一并更新）
+    user = userRes.data[0]
+    const updateData = {
+      lastLoginTime: db.serverDate()
+    }
+    if (event.avatarUrl) updateData.avatarUrl = event.avatarUrl
+    if (event.nickName) updateData.nickName = event.nickName
+    await db.collection('users').doc(user._id).update({ data: updateData })
+    // 合并最新数据返回
+    if (event.avatarUrl) user.avatarUrl = event.avatarUrl
+    if (event.nickName) user.nickName = event.nickName
+  } else {
+    // 新用户，创建记录
+    const addRes = await db.collection('users').add({
+      data: {
+        _openid: openid,
+        avatarUrl: event.avatarUrl || '',
+        nickName: event.nickName || '',
+        createTime: db.serverDate(),
+        lastLoginTime: db.serverDate()
+      }
+    })
+    user = {
+      _id: addRes._id,
+      _openid: openid,
+      avatarUrl: event.avatarUrl || '',
+      nickName: event.nickName || ''
+    }
+  }
+
+  return {
+    openid: openid,
+    appid: wxContext.APPID,
+    unionid: wxContext.UNIONID,
+    userInfo: user
+  }
+}

cloudfunctions/login/package.json

@@ -0,0 +1,9 @@
+{
+  "name": "login",
+  "version": "1.0.0",
+  "description": "登录云函数",
+  "main": "index.js",
+  "dependencies": {
+    "wx-server-sdk": "~2.6.3"
+  }
+}