Cloudinary Avatar Upload

uploadCloudinary.js

const express = require("express");
const router = express.Router();
const passport = require("passport");

// Multipart form data handler middleware
var multer = require("multer");
var upload = multer({ dest: "uploads/" });
const autoReap = require("multer-autoreap");

// Cloudinary
var cloudinary = require("cloudinary");
const CLOUDINARY_CONFIG = {} // Config object should go here
cloudinary.config(CLOUDINARY_CONFIG);

router.post(
  "/avatar",
  passport.authenticate("jwt", { session: false }),
  upload.single("avatar"),
  autoReap,
  uploadAvatar
);

const uploadAvatar = (req, res) => {
  User.findById(req.user.id)
    .then(user => {
      if (user.avatarId) {
        cloudinary.v2.uploader.destroy(user.avatarId, function(err, result) {
          if (err)
            res
              .status(400)
              .json({ errors: { uploadfailed: "Failed uploading avatar" } });
          User.findOneAndUpdate(
            { _id: user._id },
            { $set: { avatar: "", avatarId: "" } }
          ).catch(() =>
            res
              .status(400)
              .json({ errors: { uploadfailed: "Failed uploading avatar" } })
          );
        });
      }

      cloudinary.v2.uploader.upload(
        req.file.path,
        {
          folder: "work_log",
          transformation: ["avatar_image"]
        },
        (err, result) => {
          if (err) {
            console.log(err);
            res
              .status(400)
              .json({ errors: { uploadfailed: "Failed uploading avatar" } });
          }
          console.log(result);
          User.findOneAndUpdate(
            { _id: user._id },
            { $set: { avatar: result.url, avatarId: result.public_id } }
          )
            .then(() => {
              res.json({
                success: true,
                action: "upload",
                data: {
                  avatar: result.url,
                  avatarId: result.public_id
                }
              });
            })
            .catch(() =>
              res.status(400).json({
                errors: { uploadfailed: "Failed uploading avatar" }
              })
            );
        }
      );
    })
    .catch(err => {
      console.log(err);
    });
};