🚧 refactoring is ongoing

common/wechat.js

@@ -0,0 +1,68 @@
+const axios = require('axios');
+const { tokenStore } = require('./token');
+const config = require('../config');
+
+async function refreshToken() {
+  for (const item of tokenStore) {
+    item.token = await this.requestToken();
+  }
+  console.log('Token refreshed.');
+}
+
+async function requestToken(appId, appSecret) {
+  let token = '';
+  try {
+    let res = await axios.get(
+      `https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=${appId}&secret=${appSecret}`
+    );
+    console.log(res);
+    if (res && res.data && res.data.access_token) {
+      token = res.data.access_token;
+    }
+  } catch (e) {
+    console.error(e);
+  }
+  return token;
+}
+
+async function pushWeChatMessage(userPrefix, message) {
+  // Reference: https://mp.weixin.qq.com/debug/cgi-bin/readtmpl?t=tmplmsg/faq_tmpl
+  let user = tokenStore.get(userPrefix);
+  let access_token = user.token;
+  let request_data = {
+    touser: user.wechatOpenId,
+    template_id: user.wechatTemplateId,
+  };
+  if (message.content) {
+    // TODO
+    // Generate html, save message to database and then return the id
+    let id = 'TODO';
+    request_data.url = `${config.href}${userPrefix}/${id}`;
+  }
+  request_data.data = { text: { value: message.description } };
+  let requestUrl = `https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=${access_token}`;
+  try {
+    let response = await axios.post(requestUrl, request_data);
+    if (response && response.data && response.data.errcode === '40001') {
+      await requestToken(user.wechatAppId, user.wechatAppSecret);
+      await axios.post(requestUrl, request_data);
+    }
+    console.log(response.data);
+    return {
+      success: true,
+      message: '',
+    };
+  } catch (e) {
+    console.error(e);
+    return {
+      success: false,
+      message: e.message,
+    };
+  }
+}
+
+module.exports = {
+  refreshToken,
+  requestToken,
+  pushWeChatMessage,
+};