CODEWITHSUNDEEP
node.jsws
jannik 323
jannik 323

Reputation: 11

how can i use wss in node.js, if the https server is a separate node.js application?

I've created a multiplayer game with websockets in nodejs (using the ws lib), which works just fine. For debugging, I connected to the websocket server with my client webpage by just opening the html file via file:// protocol.

I wanted to have the page hosted on my web-server which uses https. This web-server also uses nodejs, but because the webpage is served via https, it cannot create a connection via ws and needs wss. Security downgrading and so on.

enter image description here

My problem is that I've got two separate programs: the https webserver and the websocket "game" server.

When i try connecting to the ws server i get:

Uncaught DOMException: The operation is insecure.

I only found instructions on how to set up wss by creating a https server, but i already have one.

Do i need to combine the two programs?

Could i maybe just serve the single page for the game with http?

Is there some other technology, which doesn't have these security restrictions? (i don't care about encryption for the websockets)

Upvotes: 0

Views: 989

Answers (1)

jannik 323
jannik 323

Reputation: 11

I was able to make it work:

Instead of wanting to use the https server from the web-server, i "upgraded" my http-server for the "gameserver" to https.
I didn't want to "create" another https server, because i thought it would cause errors, but i already made a http server indirectly anyways, with new WebSocketServer.Server({ port: PORT });.
To create the https server and use it for the WebSocketServer i used this code:

    let cert = fs.readFileSync(pathtocertkey, "utf8");
    let key = fs.readFileSync(pathtopublickey, "utf8");
    let options = {key: key, cert: cert};
    let server = require("https").createServer(options);
    const wss = new WebSocketServer.Server({ server: server});

After that i could listen to any port with server.listen(PORT,callback).
I also wasn't sure how or if i could get the cert i got with greenlock. But I found it undergreenlock.d/live/[yourdomain]/ With greenlock.d being the configDir specified in greenlock.init(options).

For the client i need to connect like this : ws = new WebSocket("wss://mydomain:"+PORT);'

Upvotes: 0

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