Trouble using pts on node server

[stefa168]

Hi, today I was working on some server-side TypeScript code that uses Group and Pt.
Unfortunately when I try to run my code, I get a ReferenceError saying window is not defined, which is understandable, since node doesn't have such things

Here's a simple example that throws that exception:

import { Group, Pt } from "pts";

let g = new Group();

Is there any way to use pts' classes on a node server, or am I out of luck?
Thanks!

[williamngan]

Hi @stefa168 -- I'm not very familiar with node server, but I'm surprised that 'window' is referenced in the example you've given.

I wonder if something like this would work ...

import { Group, Pt, namespace } from "pts"

namespace( this );
let g = new Group();

Do you have a stack trace of your error message? If you have it, can you share it here? I'll try to find the bug.

Thanks!

[stefa168]

Hi, thanks for the reply!

I tried adding your suggestion, however the error remains.
I'm sorry I didn't include a stacktrace; I totally forgot to include it:

ReferenceError: window is not defined
    at Object.<anonymous> (/sandbox/node_modules/pts/dist/index.js:15:4)
    at Module._compile (internal/modules/cjs/loader.js:778:30)
    at Module._compile (/sandbox/node_modules/source-map-support/source-map-support.js:547:25)
    at Module._extensions..js (internal/modules/cjs/loader.js:789:10)
    at Object.nodeDevHook [as .js] (/sandbox/node_modules/ts-node-dev/lib/hook.js:63:13)
    at Module.load (internal/modules/cjs/loader.js:653:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
    at Function.Module._load (internal/modules/cjs/loader.js:585:3)
    at Module.require (internal/modules/cjs/loader.js:692:17)
    at require (internal/modules/cjs/helpers.js:25:18)
[ERROR] 18:23:35 ReferenceError: window is not defined

[williamngan]

Looks like it's related to this webpack setting:
https://webpack.js.org/configuration/output/#outputglobalobject

I'll experiment with the build and see if I can fix this -- hopefully in the next 1-2 weeks. Thanks for reporting this issue.

Happy Holidays!

[williamngan]

Hi @stefa168 - This should be fixed v0.10. Please give it a try. We should be able to add support for node-canvas in future, but for now at least the static functions should work.

[stefa168]

Hi @williamngan, I just tried version 0.10.1 with a project of mine and it works without any issue!
Thanks a lot, both for the fix and for pts!

[dcsan]

(two years later :)
wondering if this lib does work with node canvas?

[williamngan]

(two years later :) wondering if this lib does work with node canvas?

Basic node-canvas support is available. Take a look at:
https://github.com/williamngan/node-pts-canvas