将带有生成密码的变量从后端传递到前端

Question

I am trying to pass my variable with generated password into my front-end side.

I think that my main problem is that I am generating password inside

route.post

this is my piece of fileUpload.route.ts

router.post('/upload-file', upload.array('file', 6), (req:any, res:any, next:any) => {
//...
genPass();
}

Inside genPass() is

let password = generator.generate({
  length: 10,
  numbers: true
});

I tried to do

module.exports = router, genPass;

and

router.get('/getpassword', fileController.fileGeneratedPassword);

Then inside my Controller

const password = require('../routes/fileUpload.route');

class FileController {
  public async fileGeneratedPassword(req: Request, res: Response): Promise<void> {
        console.log('pass: ' + JSON.stringify(password));
        res.json(password);
    }
}

But console.log is always empty.

How should I pass this variable?

I think that I must generate password inside router.post because when I upload in my frontend file then I want to generate password at the same time to "encrypt file".

I want to display generated password in my Angular frontend

Answer 1

module.exports returns a single value. you can return an object if you like but I'd separate them into 2 files

generator

function genPass() {
    return generator.generate({
        length: 10,
        numbers: true
    });
}

module.exports = genPass

controller

const genPass = require('generator');

class FileController {
  public async fileGeneratedPassword(req: Request, res: Response): Promise<void> {
        const password = genPass()
        console.log('pass: ' + JSON.stringify(password));
        res.json(password);
    }
}