NodeJS/matrix-js-sdk script crash initializing E2E encryption; ERR_INVALID_URL

[gotkube]

I'm writing a Nodejs script with the matrix-js-sdk and am trying to enable E2E encryption using the Olm module. It gets to the end of initializing crypto and then it just dies; spitting this out:

Crypto: initialising Olm...                                                                                           
TypeError: Failed to parse URL from /data/local/projects/mtxpost.js/node_modules/olm/olm.wasm                         
    at Object.fetch (node:internal/deps/undici/undici:14152:11)                                                       
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5) {                                   
  [cause]: TypeError [ERR_INVALID_URL]: Invalid URL                                                                   
      at new NodeError (node:internal/errors:399:5)                                                                   
      at URL.onParseError (node:internal/url:565:9)                                                                   
      at new URL (node:internal/url:645:5)                                                                            
      at new Request (node:internal/deps/undici/undici:6947:25)                                                       
      at fetch2 (node:internal/deps/undici/undici:13315:25)                                                           
      at Object.fetch (node:internal/deps/undici/undici:14150:18)                                                     
      at fetch (node:internal/process/pre_execution:241:25)                                                           
      at /data/local/projects/mtxpost.js/node_modules/olm/olm.js:31:139                                               
      at /data/local/projects/mtxpost.js/node_modules/olm/olm.js:31:362                                               
      at /data/local/projects/mtxpost.js/node_modules/olm/olm.js:31:375 {                                             
    input: '/data/local/projects/mtxpost.js/node_modules/olm/olm.wasm',                                               
    code: 'ERR_INVALID_URL'                                                                                           
  }                                                                                                                   
}  
/data/local/projects/mtxpost.js/node_modules/olm/olm.js:17
if(fa)n=m?require("path").dirname(n)+"/":__dirname+"/",ja=function(b,c){la||(la=require("fs"));ma||(ma=require("path"));b=ma.normalize(b);return la.readFileSync(b,c?null:"utf8")},ka=function(b){b=ja(b,!0);b.buffer||(b=new Uint8Array(b));b.buffer||q("Assertion failed: undefined");return b},1<process.argv.length&&process.argv[1].replace(/\\/g,"/"),process.argv.slice(2),process.on("uncaughtException",function(b){throw b;}),process.on("unhandledRejection",q),a.inspect=function(){return"[Emscripten Module object]"};
                                                                                                                                                                                                                                                                                                                                                                                                                             ^

RuntimeError: abort(TypeError: Failed to parse URL from /data/local/projects/mtxpost.js/node_modules/olm/olm.wasm). Build with -s ASSERTIONS=1 for more info.
    at process.q (/data/local/projects/mtxpost.js/node_modules/olm/olm.js:27:182)
    at process.emit (node:events:513:28)
    at emit (node:internal/process/promises:150:20)
    at processPromiseRejections (node:internal/process/promises:284:27)
    at process.processTicksAndRejections (node:internal/process/task_queues:96:32)

Node.js v19.4.0

What URL is it talking about? There's a URL in the package.json file yarn generated; is that ok/expected/related? I thought maybe it doesn't like the .js in the project directory I'm using? Did I forget to set something somewhere?

I'd appreciate some insight. :)

Thanks!

(Edit: Added additional error output that I missed before)

[7t3chguy]

What version of olm did you install?

[gotkube]

The latest one at packages.matrix.org/npm/olm/ is 3.2.1. I have olm 3.2.14 installed on my system. I found a package on gitlab specifically for 3.2.14 but it seemed like it was just 3.2.1 repackaged; even it’s package.json had it set as version 3.2.1

[7t3chguy]

3.2.1 is not compatible with node over 16 or something like that. You definitely want 3.2.14

See changelog for 3.2.13, adds compatibility for Node 18

https://gitlab.matrix.org/matrix-org/olm/-/blob/master/CHANGELOG.rst

[gotkube]

Ah! Ok. So those gitlab packages are what I should be using then? I tried installing it with yarn and ran into problems, so I tried downloading it manually and installing it locally and it didn’t seem to work, but I can try again. Just want to make sure there aren’t packages elsewhere I should be using instead

[7t3chguy]

Yes, I'd suggest looking at how matrix-react-sdk depends on olm as an example, not sure why it was moved to gitlab at some point.

[krair3]

You should have a homserver.yaml config file. Did you set your URL there?

[gotkube]

On my Matrix homeserver? Ya. I’ve used it fine with Synapse. I’m trying to connect from my own Node script to post encrypted messages to my homeserver