private chat example code not working (part 1)

[acnologia000]

Describe the bug
private chat example is not working ( i have tried switching back to nodejs 18.x from 19.x but it still shows the same problem)

To Reproduce
follow instruction to run the example code in document
Please fill the following code example:

Socket.IO server version: x.y.z

Server

import { Server } from "socket.io";

const io = new Server(3000, {});

io.on("connection", (socket) => {
  console.log(`connect ${socket.id}`);

  socket.on("disconnect", () => {
    console.log(`disconnect ${socket.id}`);
  });
});

Socket.IO client version: x.y.z

Client

import { io } from "socket.io-client";

const socket = io("ws://localhost:3000/", {});

socket.on("connect", () => {
  console.log(`connect ${socket.id}`);
});

socket.on("disconnect", () => {
  console.log("disconnect");
});

Expected behavior
npm run serve starts serving the example application

Platform:

• Device: x64 laptop
• OS: linux

Additional context
error trace :

 hridyansh  …/examples/private-messaging    v18.7.0 npm run serve

> private-messaging@0.1.0 serve
> vue-cli-service serve

 INFO  Starting development server...
10% building 2/5 modules 3 active ...ssaging/node_modules/eslint-loader/index.js??ref--14-0!/home/hridyanshthakur/work/node/socket.io/examples/private-messaging/src/main.jsError: error:0308010C:digital envelope routines::unsupported
    at new Hash (node:internal/crypto/hash:71:19)
    at Object.createHash (node:crypto:133:10)
    at module.exports (/home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/webpack/lib/util/createHash.js:135:53)
    at NormalModule._initBuildHash (/home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/webpack/lib/NormalModule.js:417:16)
    at handleParseError (/home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/webpack/lib/NormalModule.js:471:10)
    at /home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/webpack/lib/NormalModule.js:503:5
    at /home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/webpack/lib/NormalModule.js:358:12
    at /home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/loader-runner/lib/LoaderRunner.js:373:3
    at iterateNormalLoaders (/home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/loader-runner/lib/LoaderRunner.js:214:10)
    at iterateNormalLoaders (/home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/loader-runner/lib/LoaderRunner.js:221:10)
    at /home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/loader-runner/lib/LoaderRunner.js:236:3
    at runSyncOrAsync (/home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/loader-runner/lib/LoaderRunner.js:130:11)
    at iterateNormalLoaders (/home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/loader-runner/lib/LoaderRunner.js:232:2)
    at Array.<anonymous> (/home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/loader-runner/lib/LoaderRunner.js:205:4)
    at Storage.finished (/home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/enhanced-resolve/lib/CachedInputFileSystem.js:55:16)
    at /home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/enhanced-resolve/lib/CachedInputFileSystem.js:91:9
node:internal/crypto/hash:71
  this[kHandle] = new _Hash(algorithm, xofLen);
                  ^

Error: error:0308010C:digital envelope routines::unsupported
    at new Hash (node:internal/crypto/hash:71:19)
    at Object.createHash (node:crypto:133:10)
    at module.exports (/home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/webpack/lib/util/createHash.js:135:53)
    at NormalModule._initBuildHash (/home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/webpack/lib/NormalModule.js:417:16)
    at handleParseError (/home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/webpack/lib/NormalModule.js:471:10)
    at /home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/webpack/lib/NormalModule.js:503:5
    at /home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/webpack/lib/NormalModule.js:358:12
    at /home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/loader-runner/lib/LoaderRunner.js:373:3
    at iterateNormalLoaders (/home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/loader-runner/lib/LoaderRunner.js:214:10)
    at Array.<anonymous> (/home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/loader-runner/lib/LoaderRunner.js:205:4)
    at Storage.finished (/home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/enhanced-resolve/lib/CachedInputFileSystem.js:55:16)
    at /home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/enhanced-resolve/lib/CachedInputFileSystem.js:91:9
    at /home/hridyanshthakur/work/node/socket.io/examples/private-messaging/node_modules/graceful-fs/graceful-fs.js:123:16
    at FSReqCallback.readFileAfterClose [as oncomplete] (node:internal/fs/read_file_context:68:3) {
  opensslErrorStack: [ 'error:03000086:digital envelope routines::initialization error' ],
  library: 'digital envelope routines',
  reason: 'unsupported',
  code: 'ERR_OSSL_EVP_UNSUPPORTED'
}

Node.js v18.7.0

 hridyansh  …/examples/private-messaging    v18.7.0 A

[darrachequesne]

Hi! I could indeed reproduce the issue with Node.js 18.

It seems to be a known issue:

• Impossible to serve with Node v17.0.1 vuejs/vue-cli#6770
• Building for production...Error: error:0308010C:digital envelope routines::unsupported vuejs/vue-cli#6885

As a temporary workaround, you can:

• downgrade to Node.js 16
• or allow deprecated ciphers with --openssl-legacy-provider Node.js option

It seems that it was fixed in @vue/cli v5: https://cli.vuejs.org/migrations/migrate-from-v4.html

[acnologia000]

ohkay, i am using node 18, but at least it should be mentioned in example docs @darrachequesne

[xilef111]

Is there a good/working solution for this now?

Im am trying to get the private messaging tutorial (https://socket.io/get-started/private-messaging-part-1/)working on node.js 18, but I does not work beacause of this issue.
Dont want to downgrade to node.js 16, because I don't want to start a new projekt with a version that is marked as depercated (https://endoflife.date/nodejs#:~:text=Ended%205%20months%20and%204%20weeks%20ago).

I tried to change vue-cli-service serve to vue-cli-service serve --openssl-legacy-provider in package.json file, but this does not solve the problem.

I also tried to use npm audit fix --force beacuse I think using the new versions of the packages would be the best.
Unfortunately, as a beginner to node.js/socket.io/vou I am not able to fix the problems resultion of the breaking changes from the autit fix.
Maybe someone more experienced is able to fix this, as from my point of view, this would be the best solution, because an official tutorial shold not contain 21 high risk vunerabilities.

@darrachequesne
If there is a solution or workaround to this, it should be descibed in detail in the tutorial, so that new users can complete the tutorial. Because, as a biginner, it is really frustrating if you follow an official tutorial and it is brocken by default right after cloning the reponsitory.

Kind Regards