智慧宿舍系统小程序

wechat/cloudfunctions/openapi/config.json

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+{
+  "permissions": {
+    "openapi": [
+      "wxacode.get",
+      "subscribeMessage.send",
+      "subscribeMessage.addTemplate",
+      "templateMessage.send",
+      "templateMessage.addTemplate",
+      "templateMessage.deleteTemplate",
+      "templateMessage.getTemplateList",
+      "templateMessage.getTemplateLibraryById",
+      "templateMessage.getTemplateLibraryList"
+    ]
+  }
+}

wechat/cloudfunctions/openapi/index.js

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+// 云函数入口文件
+const cloud = require('wx-server-sdk')
+
+cloud.init()
+
+// 云函数入口函数
+exports.main = async (event, context) => {
+  console.log(event)
+  switch (event.action) {
+    case 'requestSubscribeMessage': {
+      return requestSubscribeMessage(event)
+    }
+    case 'sendSubscribeMessage': {
+      return sendSubscribeMessage(event)
+    }
+    case 'getWXACode': {
+      return getWXACode(event)
+    }
+    case 'getOpenData': {
+      return getOpenData(event)
+    }
+    default: {
+      return
+    }
+  }
+}
+
+async function requestSubscribeMessage(event) {
+  // 此处为模板 ID，开发者需要到小程序管理后台 - 订阅消息 - 公共模板库中添加模板，
+  // 然后在我的模板中找到对应模板的 ID，填入此处
+  return '请到管理后台申请模板 ID 然后在此替换' // 如 'N_J6F05_bjhqd6zh2h1LHJ9TAv9IpkCiAJEpSw0PrmQ'
+}
+
+async function sendSubscribeMessage(event) {
+  const { OPENID } = cloud.getWXContext()
+
+  const { templateId } = event
+
+  const sendResult = await cloud.openapi.subscribeMessage.send({
+    touser: OPENID,
+    templateId,
+    miniprogram_state: 'developer',
+    page: 'pages/openapi/openapi',
+    // 此处字段应修改为所申请模板所要求的字段
+    data: {
+      thing1: {
+        value: '咖啡',
+      },
+      time3: {
+        value: '2020-01-01 00:00',
+      },
+    }
+  })
+
+  return sendResult
+}
+
+async function getWXACode(event) {
+  // 此处将获取永久有效的小程序码，并将其保存在云文件存储中，最后返回云文件 ID 给前端使用
+
+  const wxacodeResult = await cloud.openapi.wxacode.get({
+    path: 'pages/openapi/openapi',
+  })
+
+  const fileExtensionMatches = wxacodeResult.contentType.match(/\/([^/]+)/)
+  const fileExtension = (fileExtensionMatches && fileExtensionMatches[1]) || 'jpg'
+
+  const uploadResult = await cloud.uploadFile({
+    // 云文件路径，此处为演示采用一个固定名称
+    cloudPath: `wxacode_default_openapi_page.${fileExtension}`,
+    // 要上传的文件内容可直接传入图片 Buffer
+    fileContent: wxacodeResult.buffer,
+  })
+
+  if (!uploadResult.fileID) {
+    throw new Error(`upload failed with empty fileID and storage server status code ${uploadResult.statusCode}`)
+  }
+
+  return uploadResult.fileID
+}
+
+async function getOpenData(event) {
+  return cloud.getOpenData({
+    list: event.openData.list,
+  })
+}

wechat/cloudfunctions/openapi/package.json

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+{
+  "name": "openapi",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "wx-server-sdk": "~2.5.1"
+  }
+}