Saving image with mongoose

Question

I know there are quite a few threads on this topic already, but unfortunately I didn\'t find my answer until now. I use angular.js with the example code from http://angular-js.i

Answer 1

it is getting repetitive but express does not support img upload so we should do this step:

1. first installing multer or(any thing you like) +plus fs path and sharp (npm module that resize and change the format helps for ease of job

const sharp = require("sharp");
const fs = require("fs");
const path = require("path");
const multer = require("multer");

I do suggest to read multer docs

2.we need a form for image upload

3.little set up for route

we have one file so we single method and we need tmperory destination for saving file i use a folder called upload in root of my project

let upload = multer({ dest: "upload/" });
app.post('/profile', upload.single('avatar'), function (req, res) {

  // req.file is the `avatar` file
  // req.body will hold the text fields, if there were any

const buffer = await sharp(
        path.join(__dirname, `../upload/${req.file.filename}`),
      ).png().toBuffer();
 
      const user = await User.findOneAndUpdate(
        { _id: "5ffb8e8b5f31732740314c72" },
        { avatar: buffer },
      );
})

now with find and update we successfully updated or created a avatar file

filename is a random string that the buffer named in that folder

4.go check out your database to see what happened