refactor: memoize pings

packages/server/lib/middlewares/recordPing.js

@@ -1,7 +1,27 @@
-const plugins = require('../plugins')
+const mem = require('mem')
 
-module.exports = (req, res, next) =>
-  plugins(req.settings, req.deviceId)
-    .recordPing(req.deviceTime, req.query.version, req.query.model)
-    .then(() => next())
-    .catch(() => next())
+const logger = require('../logger')
+const plugins = require('../plugins')
+const T = require('../time')
+
+const record = mem(
+  ({ deviceId, deviceTime, model, version, settings }) =>
+    plugins(settings, deviceId)
+      .recordPing(deviceTime, version, model)
+      .catch(logger.error),
+  {
+    cacheKey: ({ deviceId }) => deviceId,
+    maxAge: (3 / 2) * T.minute, // lib/notifier/codes.js
+  },
+)
+
+module.exports = (req, res, next) => {
+  record({
+    deviceId: req.deviceId,
+    deviceTime: req.deviceTime,
+    model: req.query.model,
+    version: req.query.version,
+    settings: req.settings,
+  })
+  next()
+}