Image retrieval and saving from/to mongo completed

server/filesManager/download.js

@@ -2,7 +2,7 @@ const fs = require('fs')
 var path = require('path');
 var multer = require('multer');
 
-var EXTENSION = '.txt';
+var EXTENSION = '.jpg';
 
 var storage = multer.diskStorage({
     destination: function (req, file, cb) {
@@ -14,17 +14,33 @@ var storage = multer.diskStorage({
 })
 
 var download = () => {
-    var dirpath = './../image_uploads/'
-    fs.readdir(dirpath, function(err, files) {
-        files.forEach(file => {
-            console.log(file.originalname)
-        })
-        var targetFiles = files.filter(function(file) {
-            return path.extname(file).toLowerCase() === EXTENSION;
-        });
-        targetFiles.forEach(file => {
-            console.log(file.originalname)
-        })
+    var dirpath = path.resolve(process.cwd(), './image_uploads/')
+    return new Promise((resolve, reject) => {
+        try {
+            fs.readdir(dirpath, function(err, fileNames) {
+                var targetFileNames = fileNames.filter(function(fileName) {
+                    const namePart = fileName.split('.')[0]
+                    return (path.extname(fileName).toLowerCase() === EXTENSION) && namePart.endsWith('compressed_20')
+                });
+                const files = targetFileNames && targetFileNames.map(targetFileName => {
+                    filepath = dirpath + '/' + targetFileName;
+                    return new Promise((resolve, reject) => {
+                        fs.readFile(filepath, 'utf8', (err, data) => {
+                            if (err) reject(err)
+                            else resolve(data)
+                        })
+                    })
+                })
+                Promise.all(files).then(fileStream => {
+                    // console.log(fileStream)
+                    resolve(fileStream)
+                }).catch(error => {
+                    reject(error)
+                });
+            })
+        } catch(err) {
+            reject(err)
+        }
     })
 }