Store an image in MongoDB using Node.js/Express and Mongoose

Question

Currently I handle image uploads using angular-file-upload and I simply save the image to the server's file system and reference it in the HTML. However, I want to try and store the image directly in the database within the Schema I defined for my blog posts.

var blogSchema = new Schema({     title: String,     author: String,     body: String,     likes: { type: Number, default: 0 },     comments: [{ type: Schema.Types.ObjectId, ref: 'Comment' }],     date: { type: Date, default: Date.now },     imageURL: String   // instead of this      image: // store it directly });  "imageURL: String" stores the path to the image. 

I want to make it so that I can just have a field that stores the image itself. I was thinking that I could perhaps just upload the image like I already do, but instead convert the image after it has been uploaded and store it in binary (or some other form) in Mongo. Is this possible?

Thanks!

Answer 1

This example below shows how to upload an image to MongoDB using mongoose. Click this link for the original source

var express = require('express'); var fs = require('fs'); var mongoose = require('mongoose'); var Schema = mongoose.Schema;  var imgPath = '/path/yourimage.png';  mongoose.connect('localhost', 'testing_storeImg');  var schema = new Schema({     img: { data: Buffer, contentType: String } });  var A = mongoose.model('A', schema);  mongoose.connection.on('open', function () {   console.error('mongo is open');    A.remove(function (err) {     if (err) throw err;      console.error('removed old docs');      // store an img in binary in mongo     var a = new A;     a.img.data = fs.readFileSync(imgPath);     a.img.contentType = 'image/png';     a.save(function (err, a) {       if (err) throw err;        console.error('saved img to mongo');        // start a demo server       var server = express.createServer();       server.get('/', function (req, res, next) {         A.findById(a, function (err, doc) {           if (err) return next(err);           res.contentType(doc.img.contentType);           res.send(doc.img.data);         });       });        server.on('close', function () {         console.error('dropping db');         mongoose.connection.db.dropDatabase(function () {           console.error('closing db connection');           mongoose.connection.close();         });       });        server.listen(3333, function (err) {         var address = server.address();         console.error('server listening on http://%s:%d', address.address, address.port);         console.error('press CTRL+C to exit');       });        process.on('SIGINT', function () {         server.close();       });     });   });  });