Can I upload a file to server by socket.io in node.js?

Question

I have a socket.io client to whom socket.io server is listening in node.js. I want to upload a file to server by socket.io. because my socket.io client is under apache. and socket.io server is in Node.js. I want to code uploading of file in Node.js. But how I can send the file data to the node.js listening to socket.

I have tried the upload of a file using Node.js server. This link is here but the this code does not use the socket.io with this. But my original project is using the socket.io.

Uploading a file in node.js by formidable

How can I do this with the socket.io server?

score 28 · Answer 1 · edited Jul 31 '13 at 08:55

28

The checked answer is invalid as of Jul 3rd 2012.

Read by yourself this tutorial on NetTuts. This tutorial uses node.js and socket.io to upload a file.

edited Jul 31 '13 at 08:55

Athari

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answered Jul 03 '12 at 21:54

Olivier Refalo

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Do you have any idea about maximum file size that we can upload – Rahul Matte Apr 04 '16 at 08:37
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Node/socket.io are stream based, take it with a grain of salt - but there should be no limits. – Olivier Refalo Apr 14 '16 at 03:48

score 13 · Answer 2 · answered Jun 25 '13 at 03:31

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I wrote a module for this purpose.

socket.io-stream

answered Jun 25 '13 at 03:31

nkzawa

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Do you have any idea how to make ios-client that uses it, thanx. – M.Othman Aug 26 '14 at 09:44
Using this library was OK until now, I'm using the latest JSPM version and it's not working anymore. – calbertts Aug 04 '16 at 03:17

sffc · Answer 3 · 2013-12-10T02:39:40.080

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Here is a npm module I wrote that will implement Socket.IO file uploading in your application:

Socket.IO File Upload

All you need to give the module is your middleware, your socket, and the file input or drop zone used for uploading files. It will also save the files if you give it a directory. The module takes care of the rest.

edited Dec 10 '13 at 02:39

answered May 22 '13 at 11:52

sffc

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@Github scroll down to bottom there is an working example. – Jan Bludau Aug 27 '16 at 21:34

score 6 · Answer 4 · answered Sep 20 '15 at 05:33

In May of 2014 with release version 1.0 of socket.IO, binary support has been added to the library.

Socket.IO now supports emitting Buffer (from Node.JS), Blob, ArrayBuffer and even File, as part of any datastructure

It's all due to low level api which is provided by engine.io.

score 5 · Answer 5 · answered Jun 13 '12 at 02:33

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Here is an example of sending a file over socket.io: http://liamkaufman.com/blog/2012/02/11/12-pushing-files-to-the-browser-using-deliveryjs-socketio-and-nodejs/

answered Jun 13 '12 at 02:33

studgeek

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The OP wants to send a file to the server, not to the client as in this example. – Prestaul Sep 07 '12 at 22:38
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The library from that example ([Delivery.js](https://github.com/liamks/Delivery.js)) claims support for bidirectional file transfers. – Rob W May 25 '14 at 15:11

Can I upload a file to server by socket.io in node.js?

5 Answers5

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