Store data in memory instead of writing to file

src/server.js

@@ -8,6 +8,7 @@ import jsonfile from 'jsonfile'
 import { ServerRenderer } from './utils/serverRender'
 import { Scanner } from './utils/scanner'
 import { DataGetter } from './utils/dataGetter'
+import { DataHolder } from './utils/dataHolder'
 
 const port = process.env.PORT || 3000
 const app = express()
@@ -18,7 +19,8 @@ if (config == null) {
   throw new Error('Config file not found!')
 }
 
-const scanner = new Scanner(config)
+const dataHolder = new DataHolder()
+const scanner = new Scanner(config, dataHolder)
 
 const watcher = chokidar.watch(path.join(process.cwd(), 'content'), {
   ignored: /(^|[/\\])\../, // ignore dotfiles
@@ -66,7 +68,7 @@ if (head == null) {
   }
 }
 
-const dataGetter = new DataGetter(config)
+const dataGetter = new DataGetter(config, dataHolder)
 const serverRenderer = new ServerRenderer(head, config, dataGetter)
 app.get('*', serverRenderer.render.bind(serverRenderer))
 

src/utils/dataGetter.js

@@ -3,8 +3,9 @@ import jsonfile from 'jsonfile'
 import path from 'path'
 
 export class DataGetter {
-  constructor (config) {
+  constructor (config, dataHolder) {
     this.config = config
+    this.dataHolder = dataHolder
   }
 
   getData (reqPath) {
@@ -15,7 +16,7 @@ export class DataGetter {
 
   getDataFromFile (reqPath) {
     if (reqPath === '') {
-      return this.readJson(path.join(process.cwd(), 'data.json'))
+      return Promise.resolve(this.dataHolder.data)
     } else if (reqPath === 'resume') {
       const fileName = path.join(process.cwd(), 'content', reqPath + '.md')
       return this.readFile(fileName, 'resume', 'utf8')

src/utils/dataHolder.js

@@ -0,0 +1,22 @@
+export class DataHolder {
+  constructor () {
+    this.data = {
+      posts: [],
+      other: {}
+    }
+  }
+
+  addPost (post) {
+    this.data.posts.push(post)
+  }
+
+  addOther (filename, data) {
+    this.data.other[filename] = data
+  }
+
+  deleteFile (filepath) {
+    this.data.posts = this.dataHolder.data.posts.filter((post) =>
+      post.filename !== filepath
+    )
+  }
+}

src/utils/scanner.js

@@ -2,20 +2,12 @@ import fs from 'fs'
 import path from 'path'
 import fm from 'front-matter'
 import moment from 'moment'
-import jsonfile from 'jsonfile'
 import zlib from 'zlib'
 
 export class Scanner {
-  constructor (config) {
+  constructor (config, dataHolder) {
     this.config = config
-    this.initData()
+    this.dataHolder = dataHolder
-  }
-
-  initData () {
-    this.data = {
-      posts: [],
-      other: {}
-    }
   }
 
   addFile (filepath) {
@@ -25,7 +17,6 @@ export class Scanner {
     } else {
       this.readfile(filepath)
         .then((data) => this.processFile(data[0], data[1]))
-        .then(() => this.writeData())
     }
   }
 
@@ -35,9 +26,7 @@ export class Scanner {
   }
 
   deleteFile (filepath) {
-    this.data.posts = this.data.posts.filter((post) =>
+    this.dataHolder.deleteFile(filepath)
-      post.filename !== filepath
-    )
   }
 
   readfile (filePath) {
@@ -113,27 +102,14 @@ export class Scanner {
         link: '/post/' + metadata.filename
       }
 
-      this.data.posts.push(post)
+      this.dataHolder.addPost(post)
     } else {
-      this.data.other[metadata.filename] = data
+      this.dataHolder.addOther(metadata.filename, data)
     }
 
     return Promise.resolve()
   }
 
-  writeData () {
-    return new Promise((resolve, reject) => {
-      jsonfile.writeFile(path.join(process.cwd(), 'data.json'), this.data, (err) => {
-        if (err) {
-          reject(err)
-        } else {
-          this.initData()
-          resolve()
-        }
-      })
-    })
-  }
-
   fileMetadata (filepath) {
     const paths = filepath.split('/')
     const basename = path.basename(filepath)