AWS-MULTER-S3-SHARP key, config, 세팅 value

 aws: {

    access_key_id: "https://aws.amazon.com/ko/blogs/security/wheres-my-secret-access-key/",

    secret_access_key: "https://aws.amazon.com/ko/blogs/security/wheres-my-secret-access-key/",

    region: "ap-northeast-2",

    bucket: "indj",

  },

Key: 경로/파일이름

ACL: "public-read",

Lib 에 만든 s3용 multer upload

uploadS3.js->

const { config } = require("../../config");

// AWS

const aws = require("aws-sdk");

const multer = require("multer");

const s3Storage = require("multer-sharp-s3");

//const config = require("../../config.json");

const crypto = require("crypto");

const path = require("path");

// aws S3

const s3 = new aws.S3();

aws.config.update({

  secretAccessKey: config.aws.secret_access_key, // Not working key, Your SECRET ACCESS KEY from AWS should go here, never share it!!!

  accessKeyId: config.aws.access_key_id, // Not working key, Your ACCESS KEY ID from AWS should go here, never share it!!!

  region: config.aws.region, // region of your bucket

});

exports.upload = multer({

  storage: s3Storage({

    s3,

    Bucket: config.aws.bucket,

    ACL: "public-read",

    limits: {

      fileSize: 5 * 1024 * 1024,

    },

    Key: (req, file, cb) => {

      cb(

        null,

        `${file.mimetype.split("/")[0]}/${file.fieldname}/${crypto

          .createHash("md5")

          .update(new Date().getTime().toString(36))

          .digest("hex")}${path.extname(file.originalname)}`

      );

    },

    resize: {

      width: 500,

      height: 500,

    },

  }),

  fileFilter: function (req, file, callback) {

    var ext = path.extname(file.originalname);

    if (ext !== ".png" && ext !== ".jpg" && ext !== ".gif" && ext !== ".jpeg") {

      req.fileValidateError = `png, jpg, gif, jpeg 파일만 가능합니다`;

      return callback(new Error("png, jpg, gif, jpeg 파일만 가능합니다"));

    }

    callback(null, true);

  },

});

router->

const mUploadS3 = require("../mUploadS3 loc");

router

  .route("/")

  .post(mUploadS3.upload.single("thumbnail"), async (req, res) => {

    //'thumbnail' 이건 formdata의 칼럼명

    try {

      console.log("## req.file.s3filename: ", req.file.s3filename);

      console.log("## req.file.s3folder: ", req.file.s3folder);

      res.json({

        s3filename: req.file.s3filename,

        s3folder: req.file.s3folder,

      });

    } catch (e) {

      console.log(e);

      res.status(400).json({ code: 0, reason: "bad request" });

    }

  });