WIP Add DB caching

.env

@@ -0,0 +1 @@
+DB_PATH=./data

Dockerfile

@@ -11,5 +11,7 @@ RUN npm install --production
 # Bundle app source
 COPY . .
 
+VOLUME /data
+
 EXPOSE 3000
 CMD [ "node", "index.js" ]

index.js

@@ -6,6 +6,23 @@ require('dotenv').config()
 app.set('env', process.env.NODE_ENV || "production")
 app.set('view engine', 'pug')
 app.set('port', process.env.PORT || 3000)
+app.set('db_path', process.env.DB_PATH || "/data")
+
+if (!fs.existsSync(app.get('db_path'))) {
+  fs.mkdirSync(app.get('db_path'))
+}
+const db_path_file = path.join(app.get('db_path'), 'db.json')
+if (!fs.existsSync(db_path_file)) {
+  fs.closeSync(fs.openSync(db_path_file, 'w'));
+}
+const adapter = new FileSync(db_path_file)
+const db = low(adapter)
+db.defaults({ posts: [] })
+  .write()
+
+app.use((req, res, next) => {
+  req.db = db
+})
 
 app.use('/', require('./routes/main'))
 app.use('/', require('./routes/static'))

package-lock.json

@@ -679,8 +679,7 @@
     "graceful-fs": {
       "version": "4.2.4",
       "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.4.tgz",
-      "integrity": "sha512-WjKPNJF79dtJAVniUlGGWHYGz2jWxT6VhN/4m1NdkbZ2nOsEF+cI1Edgql5zCRhs/VsQYRvrXctxktVXZUkixw==",
+      "integrity": "sha512-WjKPNJF79dtJAVniUlGGWHYGz2jWxT6VhN/4m1NdkbZ2nOsEF+cI1Edgql5zCRhs/VsQYRvrXctxktVXZUkixw=="
-      "dev": true
     },
     "has-flag": {
       "version": "3.0.0",
@@ -939,6 +938,18 @@
       "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.20.tgz",
       "integrity": "sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA=="
     },
+    "lowdb": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/lowdb/-/lowdb-1.0.0.tgz",
+      "integrity": "sha512-2+x8esE/Wb9SQ1F9IHaYWfsC9FIecLOPrK4g17FGEayjUWH172H6nwicRovGvSE2CPZouc2MCIqCI7h9d+GftQ==",
+      "requires": {
+        "graceful-fs": "^4.1.3",
+        "is-promise": "^2.1.0",
+        "lodash": "4",
+        "pify": "^3.0.0",
+        "steno": "^0.4.1"
+      }
+    },
     "lowercase-keys": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/lowercase-keys/-/lowercase-keys-1.0.1.tgz",
@@ -1188,6 +1199,11 @@
       "integrity": "sha512-q0M/9eZHzmr0AulXyPwNfZjtwZ/RBZlbN3K3CErVrk50T2ASYI7Bye0EvekFY3IP1Nt2DHu0re+V2ZHIpMkuWg==",
       "dev": true
     },
+    "pify": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/pify/-/pify-3.0.0.tgz",
+      "integrity": "sha1-5aSs0sEB/fPZpNB/DbxNtJ3SgXY="
+    },
     "prepend-http": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/prepend-http/-/prepend-http-2.0.0.tgz",
@@ -1522,6 +1538,14 @@
       "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
       "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow="
     },
+    "steno": {
+      "version": "0.4.4",
+      "resolved": "https://registry.npmjs.org/steno/-/steno-0.4.4.tgz",
+      "integrity": "sha1-BxEFvfwobmYVwEA8J+nXtdy4Vcs=",
+      "requires": {
+        "graceful-fs": "^4.1.3"
+      }
+    },
     "string-width": {
       "version": "4.2.0",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.0.tgz",

package.json

@@ -22,6 +22,7 @@
     "feed": "^4.2.1",
     "jstransformer-markdown-it": "^2.1.0",
     "lodash": "^4.17.20",
+    "lowdb": "^1.0.0",
     "luxon": "^1.25.0",
     "markdown-it-anchor": "^5.3.0",
     "markdown-it-table-of-contents": "^0.4.4",