ReferenceError: window is not defined when initializing a new class instance in AWS Lambda

[TENDesign]

Hi,

Really hoping to get this working. I am trying to use this in AWS lambda an am getting the following error in CloudWatch:

2021-09-16T18:42:33.067Z	undefined	ERROR	Uncaught Exception 	{
    "errorType": "ReferenceError",
    "errorMessage": "window is not defined",
    "stack": [
        "ReferenceError: window is not defined",
        "    at Module.8078 (/var/task/simpleLogin.js:1:1310260)",
        "    at n (/var/task/simpleLogin.js:34:5318)",
        "    at /var/task/simpleLogin.js:34:5952",
        "    at /var/task/simpleLogin.js:34:9741",
        "    at Object.<anonymous> (/var/task/simpleLogin.js:34:9847)",
        "    at Module._compile (internal/modules/cjs/loader.js:1072:14)",
        "    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1101:10)",
        "    at Module.load (internal/modules/cjs/loader.js:937:32)",
        "    at Function.Module._load (internal/modules/cjs/loader.js:778:12)",
        "    at Module.require (internal/modules/cjs/loader.js:961:19)"
    ]
}

This is a scaled down version of the lambda

import { JSEncrypt } from 'jsencrypt';

export const SimpleLoginHandler = async (event: APIGatewayProxyEvent): Promise<APIGatewayProxyResultV2> => {

    const PRIVATE_KEY = `-----BEGIN RSA PRIVATE KEY-----
    <PRIVATE KEY STRING>
    -----END RSA PRIVATE KEY-----`;
    console.log({PRIVATE_KEY});

    const crypt = new JSEncrypt(); // THIS IS WHAT IS THROWING THE ERROR
    console.log({crypt});

	// crypt.setKey(PRIVATE_KEY);
	// const password = crypt.decrypt(BODY.Password) as string;
    // console.log({password});

    // default response
    return {
        statusCode: 200,
        headers: corsHeaders,
        body: JSON.stringify({
            Credentials: credentials,
            Profile: profile
        })
    };

};

[TVYDev]

I was stuck with that error window is not defined for quite a while too in my Next.js project, then eventually I try to dynamic load the package, and it works for me.

export const encrypt = async (message: string): Promise<string> => {
  const JSEncrypt = (await import('jsencrypt')).default;
  const jsencrypt = new JSEncrypt();
  jsencrypt.setPublicKey('rsa_public_key');
  return jsencrypt.encrypt(message) || message;
};

[liuziyang233]

error "window" is not available during server side rendering.

9 | rng_pptr = 0; 10 | var t = void 0;

11 | if (window.crypto && window.crypto.getRandomValues) { | ^ 12 | // Extract entropy (2048 bits) from RNG if available 13 | var z = new Uint32Array(256); 14 | window.crypto.getRandomValues(z);

[0m [0m [0m[97m[41mWebpackError[0m[37m[41m:[0m[37m[41m [0m[97m[41mReferenceError: window is not defined[0m 佛了

[knnhcn]

I was stuck with that error window is not defined for quite a while too in my Next.js project, then eventually I try to dynamic load the package, and it works for me.

export const encrypt = async (message: string): Promise<string> => {
  const JSEncrypt = (await import('jsencrypt')).default;
  const jsencrypt = new JSEncrypt();
  jsencrypt.setPublicKey('rsa_public_key');
  return jsencrypt.encrypt(message) || message;
};

In my case this worked partially. It now did not trigger the error on loading the package but still when using it. In my case I needed to add globalThis.window = {} as unknown as any; before using JSEncrypt in my TypeScript Azure Function.

[q1uxu]

I was stuck with that error window is not defined for quite a while too in my Next.js project, then eventually I try to dynamic load the package, and it works for me.

export const encrypt = async (message: string): Promise<string> => {
  const JSEncrypt = (await import('jsencrypt')).default;
  const jsencrypt = new JSEncrypt();
  jsencrypt.setPublicKey('rsa_public_key');
  return jsencrypt.encrypt(message) || message;
};

It works for me.