如何使用Node JS(Express)在s3存储桶中一次上传多张图像 [英] How to upload multiple images at a time in s3 bucket using Node JS (Express)
问题描述
require("dotenv").config();
const AWS = require("aws-sdk");
const multer = require("multer");
const multerS3 = require("multer-s3");
const uuid = require("uuid").v4;
const path = require("path");
const s3 = new AWS.S3({
accessKeyId: process.env.AWS_S3_ACCESS_KEY_ID,
secretAccessKey: process.env.AWS_S3_SECRET_ACCESS_KEY
});
const upload = multer({
storage: multerS3({
s3: s3,
Bucket: process.env.AWS_S3_BUCKET_NAME,
ACL: "public-read",
metadata: (req, file, cd) => {
cd(null, { fieldName: file.fieldname });
},
key: (req, file, cb) => {
const ext = path.extname(file.originalname);
const uniqueName = `${uuid()}${ext}`;
cb(null, uniqueName);
},
}),
});
module.exports = {
upload
}
router.post("/photo-upload", upload.array('photos'), (req, res) => {
return res.status(200).send({
success: true,
result: 'Images Uploaded',
});
});
添加此代码后,我的代码崩溃并出现以下错误** node_modules/multer-s3/index.js:94情况未定义":抛出新错误(需要存储桶")
After adding this code my code is crashing and getting below errors **node_modules/multer-s3/index.js:94 case 'undefined': throw new Error('bucket is required')
错误:需要存储桶在新的S3Storage中**
Error: bucket is required at new S3Storage**
有什么方法可以一次不使用循环上传多个文件.正文:缓冲区,我可以将其作为[缓冲区,缓冲区]发送吗?
is there any way to upload multiple file at a time not using loop. Body: buffer, can I send it as a [buffer, buffer]?
推荐答案
我建议您考虑使用multer和multerS3库,如下所示.
I would suggest you maybe consider using multer and multerS3 libraries, this would look as follows.
fileUpload.js
const aws = require("aws-sdk")
const multer = require("multer")
const multerS3 = require("multer-s3")
const uuid = require("uuid").v4
const path = require("path")
const s3 = new aws.S3({
accessKeyId: <secret-id>,
secretAccessKey: <secret-key>,
region: <server-region>,
apiVersion: "2012-10-17"
})
const upload = multer({
storage: multerS3({
s3:s3,
bucket: <bucket-name>,
acl: "public-read",
metadata: (req, file, cd) => {
cd(null, {fieldName: file.fieldname})
},
key: async (req, file, cb) => {
const ext = path.extname(file.originalname)
const uniqueName = `${uuid()}${ext}`
cb(null, uniqueName)
},
})
})
然后,您将文件导入到您的路线中,并将upload.array添加到要在其上上传图像的路线上
You then import the file into your routes and add upload.array to the route you want to upload images on
imageRoutes.js
const express = require("express");
const router = express.Router();
const upload = require("./fileUpload")
router.post("/", upload.array("image"), (req, res) => {
res.send("uploaded")
}
module.exports = router;
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