Code

• mypage.routes.js

const uploadFile = uploadS3.single('file');
import { check } from "express-validator";

router.put(
    '/',
    authJWT,
  	// multer error handling
    function(req, res) { uploadFile(req, res, function (err) {
            if (err) {
                return res.status(400).json({
                    success: false,
                    response: [],
                    error: '확장자가 .png, .gif, .jpg and .jpeg 이미지 가능합니다!'
                });
            }
        })
    },
    [

        check("name", "name value id required").trim().isLength({ min: 1, max: 20 }).not().isEmpty(),
      // errors 체킹하는 부분 추가!! validation
    ], 
    update
);

• multer.js

import multer from 'multer'
import multerS3 from 'multer-s3'
import aws from 'aws-sdk'
import dotenv from 'dotenv'

dotenv.config()

const s3 = new aws.S3({
	/*
    	직접 입력 해도되고 , aws configure로 설정해 줘도된다.
    */
})

const MAXSIZE = 1024 * 1024 * 50

const fileFilter = (req, file, cb) => {
    if (file.mimetype == "image/png"
        || file.mimetype == "image/jpg" 
        || file.mimetype == "image/jpeg"
        || file.mimetype == "image/gif") {
        cb(null, true);
    } else {
        cb(null, false);
        cb(new Error('Only .png, .gif, .jpg and .jpeg format allowed!'));
    }
}

export const uploadS3 = multer({
    storage: multerS3({
        s3: s3,
        bucket: process.env.BUCKET_NAME,
        contentType: multerS3.AUTO_CONTENT_TYPE,
        key: function (req, file, callback) {
            console.log(file);
            callback(null, `${Date.now()}_${file.originalname}`)
        },
        acl: 'public-read',
        
    }),
    limits: {
        fileSize: MAXSIZE,
    },
    fileFilter: fileFilter,
})

export const upload = multer({
    storage: multer.memoryStorage({}),
    limits: {
        fileSize: MAXSIZE,
    },
    fileFilter: fileFilter
})

• mypage.controller.js

import mypageService from '../service/mypage.service.js';
import { validationResult } from 'express-validator';

export async function update(req, res) {

  /**
  	errors 체킹하는 부분 추가!! validation
  */
  const errors = validationResult(req);
  if (!errors.isEmpty()) {
    return res.status(400).json({ 
      success: false,
      response: [],
      error: errors.array() });
  }

  try {
    const searchWallet = await mypageService.findWallet({ id: req.id }); // get from jwt token
    if (!isNaN(searchWallet.id)) {
      return res.status(401).json({
        success: false,
        response: null,
        error: {
          status: 400,
          message: "인증되지 않은 사용자",
        },
      });
    }

    let wallet = {
      id: req.id, // get from jwt token
      image: req.file.location, // S3 주소, req.file.location
      username: req.body.name,
    };

    // 업데이트
    const updateWallet = await mypageService.updateWalelt(wallet);
    console.log(updateWallet[0]);

    // 조회하는 로직
    const retrieveWallet = await mypageService.findWallet({ id: updateWallet[0].id });


    return res.status(200).json({
      success: true,
      response: retrieveWallet,
      error: null,
    });
  } catch (err) {
    return res.status(500).json({
      success: false,
      response: null,
      error: {
        status: 500,
        message: err.message,
      },
    });
  }

}

export default {
  update,
};

multer

multer github DOC

validation

express-validator

express-validator DOC