A file validation library for node js
npm install @thesameeric/fileguardDescription
===========
A library for validating files. It can be used to validate local files and also files from formData.
Recommended to use as a middleware with;
- Multer
- or any other ``multipart/formdata` parser.
Requirements
============
* node.js -- v14.x or newer
Install
=======
`shell`
$ npm install --save @thesameeric/fileguard
Usage
========
`ts
// Validate local file
import { FileGuard } from '@thesameeric/filguard';
import * as path from 'path';
const filepath = path.join(__dirname, './Hotpot.png');
const { file, error } = new FileGuard(filepath).type(['epub', 'pdf']).size(1);
if (error) throw new Error('Custom error message');
`
ts
import * as express from 'express';
import * as multer from 'multer';
import { FileGuard } from '@thesameeric/filguard';const upload = multer({ dest: 'uploads/' })
const app = express()
app.post('/file', upload.single('avatar'), (req, res, next) => {
// req.file is the
avatar file
// req.body will hold the text fields, if there were any
const { file, error } = new FileGuard(req.file).type(['png', 'jpg', 'jpeg', 'gif']).size(3);
if(error) {
// Output error
}
})
``