CODEWITHSUNDEEP
httplocalhostdeno
Xajoc8
Xajoc8

Reputation: 83

Serving files on a local network with Deno

I recently decided to play around with Deno a bit.

Right now I am trying to set up a basic file server on my local network, but it will only serve files to my computer and not the rest of the network (I can't even send a http request to the server from outside my computer). I can not, for the life of me, figure out why it only works locally.

I have added the code I am using at the moment below just in case, but I'm pretty sure the problem is somewhere else, because I have the same problem with this file_server example and when I create a file server with oak

import { serve } from 'https://deno.land/[email protected]/http/server.ts';
const server = serve({ port: 3000 });

const decoder = new TextDecoder('utf-8');

for await (const req of server) {
    const filePath = 'public' + req.url;

    try {
        const data = await Deno.readFile(filePath);
        req.respond({ body: decoder.decode(data) });
    } catch (error) {
        if (error.name === Deno.errors.NotFound.name) {
            console.log('File "' + filePath + '" not found');
            req.respond({ status: 404, body: 'File not found' });
        } else {
            req.respond({ status: 500, body: 'Rest in pieces' });
            throw error;
        }
    }
}

The command I'm using to run the file is:

deno --allow-all server.ts

When I create a simple file server in Node.js everything works just fine. It can serve files to my computer and any other device on the network.

I think the fault is with my understanding of Deno and it's security concepts, but I don't know. I would greatly appreciate any help and can supply more details if required.

Upvotes: 2

Views: 2376

Answers (1)

BentoumiTech
BentoumiTech

Reputation: 1683

You need to bind the hostname to 0.0.0.0 like so :

const server = serve({ hostname: '0.0.0.0', port: 3000 });

By default, your webserver only responds to localhost and 127.0.0.1.

Binding to 0.0.0.0 tells Deno to bind to all IP addresses/interfaces on your machine. Which makes it accessible to any machine on your network.

Your network IP address in the format of 192.168.x.y. gets also bind to the Deno webserver which allows another computer in your network to access the webserver with your local IP address.

Upvotes: 3

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