ReferenceError: window is not defined while trying to vote with snapshot.js

[ChaituVR]

Expected behavior

Should work without error

Steps to reproduce the behavior

• npm install @snapshot-labs/snapshot.js in any nodejs project
• Try to vote with the code here https://gist.github.com/ChaituVR/db9f78a2f2a7e8347843a6a83393b032
• See the error

[franzns]

Thanks for opening the issue. Let me know if I can help

[fffbbbccc]

Hey all, i am experiencing the same issue while i was trying to quickly prototype something in node.
First of all, i had some issues because i didnt check the ethers.js dependencies of snapshot.js and since its using 5.x, the signTypedData function is different (6.x uses signTypedData and 5.x uses _signTypedData).

Anyhow, after getting this out of the way, i realized the this error is coming from this line here

    if (window?.ethereum?.isTrust) {
      domainData.chainId = (await signer.provider.getNetwork()).chainId;
    }

The generated node code looks like this :

if (!((_a = window === null || window === void 0 ? void 0 : window.ethereum) === null || _a === void 0 ? void 0 : _a.isTrust)) return [3 /*break*/, 2];

and i think it throws the error because its trying to access window object without first checking if the window object exists, which ofc doesnt in a node env.
As a horrendous hack, i modified the generated code and replaced it with the following just to see if it works

if (typeof window === 'undefined' || !window.ethereum || !window.ethereum.isTrust) return [3 /*break*/, 2];

which worked. So i figured i am on the right track.

I opened a small pr which will hopefully fix this here : #998

[ChaituVR]

Thank you @fffbbbccc it is fixed now