How to limit upload file size in express.js

Question

i got this error says

error:request entity too large

when uploading a video about 30MB,

here is the setting code

app.use(express.bodyParser({
    uploadDir:'./Temp',
    maxFieldsSize:'2 * 1024 * 1024 * 1024 ',
}));

am not sure how to set the maxFieldsSize property, need some help!!!

score 12 · Accepted Answer · edited Oct 27 '13 at 19:13

12

Express uses connect middleware, you can specify the file upload size by using the following

app.use(express.limit('4M'));

Connect Limit middleware

edited Oct 27 '13 at 19:13

Patryk Ziemkowski

1,470
12
26

answered Nov 14 '12 at 07:06

Sdedelbrock

4,354
1
16
13

6

also make sure you put this above bodyParser(), happy coding! – Sdedelbrock Nov 14 '12 at 07:09
but dosen't express use node-formidable? and the express doc says "The bodyParser() middleware utilizes the node-formidable module internally, and accepts the same options." – paynestrike Nov 14 '12 at 08:08
I don't know about older versions, but as of v3.01 (current) uploads look as if they are handled directly through connect – Sdedelbrock Nov 14 '12 at 09:19
3

limit('4mb') seems to be the correct syntax (nowadays at least). – Andreas Hultgren Sep 09 '13 at 08:15
9

note: this answer is no longer valid, and only applicable to a version of Express that is no longer available. – Mike 'Pomax' Kamermans Oct 04 '14 at 19:25
stackoverflow admin pls remove this answer – аlex dykyі Oct 31 '18 at 17:46

score 6 · Answer 2 · answered Aug 20 '16 at 01:34

// Comment sart   
// app.use(express.bodyParser({
//    uploadDir:'./Temp',
//    maxFieldsSize:'2 * 1024 * 1024 * 1024 ',
// }));  

// Add this code for maximun 150mb 
app.use(bodyParser.json({limit: '150mb'}));
app.use(bodyParser.urlencoded({     // to support URL-encoded bodies
limit: '150mb',
extended: true
})); 

// I did it Okay. Goood luck

score 4 · Answer 3 · answered Feb 16 '20 at 01:49

In 2020 Express uses the body-parser urlencoded function to control the limit. http://expressjs.com/en/4x/api.html#express.urlencoded

These are the default settings inside node_modules>body-parser>lib>types>urlencoded.js https://www.npmjs.com/package/body-parser

  var extended = opts.extended !== false
  var inflate = opts.inflate !== false
  var limit = typeof opts.limit !== 'number'
    ? bytes.parse(opts.limit || '100kb')
    : opts.limit
  var type = opts.type || 'application/x-www-form-urlencoded'
  var verify = opts.verify || false

You can see here that the default setting for limit is 100kb. so in order to up that you can use

app.use(express.urlencoded({ extended: false, limit: '2gb' }));

here are the filetype options available via NPM package bytes ( used by bodyparser ) https://www.npmjs.com/package/bytes

"b" for bytes
"kb" for kilobytes
"mb" for megabytes
"gb" for gigabytes
"tb" for terabytes
"pb" for petabytes

I'm sure this was overkill but I hope this helps the next person.

score 3 · Answer 4 · answered Apr 30 '14 at 12:46

3

app.use(express.limit('4mb'));

But you must make sure you add this line above the below,

app.use(express.bodyParser());

or

app.use(express.json());
app.use(express.urlencoded());

depending on which version you are using.

answered Apr 30 '14 at 12:46

Will Hancock

1,210
4
16
27

5

answer is no longer valid in 2016 now that nodejs took out limit middleware – user1709076 May 06 '16 at 19:36
^^ what he says – Will Hancock Oct 24 '17 at 08:32

score 1 · Answer 5 · answered Feb 13 '19 at 00:01

I'm using Express 4. I tried numerous app.use() statements, including the non-deprecated ones listed on this thread, but none of them worked.

Instead, it turned out I only needed to add one line to index.js to change the maxFileSize option in the Formidable module:

// create an incoming form object
var form = new formidable.IncomingForm();

// ADD THIS LINE to increase file size limit to 10 GB; default is 200 MB
form.maxFileSize = 10 * 1024 * 1024 * 1024;

Source: Comments from here.

score 1 · Answer 6 · edited Apr 04 '19 at 07:08

1

var upload = multer({ storage : storage2, limits: { fileSize: 1024 * 1024 * 50 } });

correct format for increasing file uploading size with multer in nodejs

edited Apr 04 '19 at 07:08

Soviut

79,529
41
166
227

answered Mar 04 '19 at 11:29

Aashish Prajapat

13
3

How to limit upload file size in express.js

6 Answers6

Linked