Node.js 在上传文件之前,快速Multer验证请求
我目前正在使用multer-s3()将单个csv文件上载到s3,我的工作方式如下:Node.js 在上传文件之前,快速Multer验证请求,node.js,express,multer,multer-s3,Node.js,Express,Multer,Multer S3,我目前正在使用multer-s3()将单个csv文件上载到s3,我的工作方式如下: var multer = require('multer'); var multerS3 = require('multer-s3'); var AWS = require('aws-sdk'); AWS.config.loadFromPath(...); var s3 = new AWS.S3(...); var upload = multer({ storage: multerS3({ s3:
var multer = require('multer');
var multerS3 = require('multer-s3');
var AWS = require('aws-sdk');
AWS.config.loadFromPath(...);
var s3 = new AWS.S3(...);
var upload = multer({
storage: multerS3({
s3: s3,
bucket: 'my-bucket',
metadata: function (req, file, cb) {
cb(null, {fieldName: file.fieldname});
},
key: function (req, file, cb) {
cb(null, Date.now().toString())
}
})
});
然后它的路线是这样的:
app.route('/s3upload')
.post(upload.single('data'), function(req, res) {
// at this point the file is already uploaded to S3
// and I need to validate the token in the request.
let s3Key = req.file.key;
});
我的问题是,在Multer将我的文件上传到S3之前,我如何验证请求对象。您可以在上传之前链接多个中间件,然后在那里检查令牌
function checkToken(req, res) {
// Logic to validate token
}
app.route('/s3upload')
.post(checkToken, upload.single('data'), function(req, res) {
// at this point the file is already uploaded to S3
// and I need to validate the token in the request.
let s3Key = req.file.key;
});
只是另一个验证层。您可以使用Joi来验证您的请求。在保存数据之前
//router.ts
router.post('/', Upload.single('image'), ProductController.create);
//controller.ts
export const create = async(req:Request,res:Response) => {
const image = (req.file as any).location;
const body = { ...req.body, image: image }
const { error } = validate(body);
if (error) return res.status(400).send(error.details[0].message);
const product = await ProductService.create(body);
res.status(201).send(product);
}
//product.ts
function validateProduct(product : object) {
const schema = Joi.object({
name: Joi.string().min(5).max(50).required(),
brand: Joi.string().min(5).max(50).required(),
image: Joi.string().required(),
price: Joi.number().required(),
quantity:Joi.number(),
description: Joi.string(),
});
return schema.validate(product);
}