Compress responses

app/index.js

@@ -1,5 +1,6 @@
 const path = require('path');
 const express = require('express');
+const compression = require('compression');
 const app = express();
 
 const frontend = require('./frontend');
@@ -10,6 +11,7 @@ const {
   credentials,
 } = require('../environment');
 
+app.use(compression());
 app.use((req, res, next) => {
   if (req.hostname === 'algo-visualizer.jasonpark.me') {
     res.redirect(301, 'https://algorithm-visualizer.org/');

package-lock.json

@@ -2656,6 +2656,45 @@
       "integrity": "sha1-E3kY1teCg/ffemt8WmPhQOaUJeY=",
       "dev": true
     },
+    "compressible": {
+      "version": "2.0.15",
+      "resolved": "https://registry.npmjs.org/compressible/-/compressible-2.0.15.tgz",
+      "integrity": "sha512-4aE67DL33dSW9gw4CI2H/yTxqHLNcxp0yS6jB+4h+wr3e43+1z7vm0HU9qXOH8j+qjKuL8+UtkOxYQSMq60Ylw==",
+      "requires": {
+        "mime-db": ">= 1.36.0 < 2"
+      },
+      "dependencies": {
+        "mime-db": {
+          "version": "1.37.0",
+          "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.37.0.tgz",
+          "integrity": "sha512-R3C4db6bgQhlIhPU48fUtdVmKnflq+hRdad7IyKhtFj06VPNVdk2RhiYL3UjQIlso8L+YxAtFkobT0VK+S/ybg=="
+        }
+      }
+    },
+    "compression": {
+      "version": "1.7.3",
+      "resolved": "https://registry.npmjs.org/compression/-/compression-1.7.3.tgz",
+      "integrity": "sha512-HSjyBG5N1Nnz7tF2+O7A9XUhyjru71/fwgNb7oIsEVHR0WShfs2tIS/EySLgiTe98aOK18YDlMXpzjCXY/n9mg==",
+      "requires": {
+        "accepts": "~1.3.5",
+        "bytes": "3.0.0",
+        "compressible": "~2.0.14",
+        "debug": "2.6.9",
+        "on-headers": "~1.0.1",
+        "safe-buffer": "5.1.2",
+        "vary": "~1.1.2"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "2.6.9",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+          "requires": {
+            "ms": "2.0.0"
+          }
+        }
+      }
+    },
     "concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",

package.json

@@ -31,6 +31,7 @@
     "axios": "latest",
     "bluebird": "latest",
     "body-parser": "^1.18.2",
+    "compression": "^1.7.3",
     "cookie-parser": "^1.4.3",
     "express": "^4.15.4",
     "express-github-webhook": "^1.0.6",