perf: server side cache for api calls

common/cache.js

+import express from "express"
+import apicache from "apicache"
+
+const app = express()
+
+// https://github.com/kwhitley/apicache
+app.use(apicache.middleware("5 minutes"))
+
+// apicache.options({ debug: true })
+
+export default {
+  path: "/api/",
+  handler: app
+}

nuxt.config.js

-module.exports = {
+export default {
   head: {
     titleTemplate: "Nuxt HN | %s",
     meta: [
@@ -36,6 +36,7 @@ module.exports = {
     }
   },
   plugins: ["~/plugins/filters"],
+  serverMiddleware: ["~/common/cache.js"],
   render: {
     static: {
       maxAge: "1y",

package.json

@@ -35,6 +35,8 @@
     "@nuxtjs/axios": "^5.1.1",
     "@nuxtjs/component-cache": "^1.1.1",
     "@nuxtjs/pwa": "2.0.8",
+    "apicache": "^1.2.1",
+    "express": "^4.16.3",
     "nuxt-edge": "^2.0.0-25364965.06067bf",
     "vue-server-renderer": "^2.5.16"
   },

yarn.lock

@@ -271,6 +271,10 @@ anymatch@^2.0.0:
     micromatch "^3.1.4"
     normalize-path "^2.1.1"
 
+apicache@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/apicache/-/apicache-1.2.1.tgz#765cec58aae5f48a9c71007d035f4110aa6fbeaf"
+
 aproba@^1.0.3, aproba@^1.1.1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/aproba/-/aproba-1.2.0.tgz#6802e6264efd18c790a1b0d517f0f2627bf2c94a"
@@ -2368,7 +2372,7 @@ expand-range@^1.8.1:
   dependencies:
     fill-range "^2.1.0"
 
-express@^4.16.2:
+express@^4.16.2, express@^4.16.3:
   version "4.16.3"
   resolved "https://registry.yarnpkg.com/express/-/express-4.16.3.tgz#6af8a502350db3246ecc4becf6b5a34d22f7ed53"
   dependencies: