CODEWITHSUNDEEP
node.jstypescript
Edgar
Edgar

Reputation: 6856

jwt.verify(token, process.env.JWT_Confirm_KEY). Property 'id' does not exist on type 'object'

this is my code

const data = jwt.verify(token, process.env.JWT_Confirm_KEY);

when i use data.id i get error

await db.ref(`/users/${data.id}`).once("value")

Property 'id' does not exist on type 'object'.ts(2339)

one way to get rid of the error

interface IdEmail {
  id: string;
  email: string;
}

const data = jwt.verify(token, process.env.JWT_Confirm_KEY) as IdEmail;

what other ways are there to get rid of this error ?

Upvotes: 1

Views: 1933

Answers (3)

Sir hennihau
Sir hennihau

Reputation: 1774

This could be another minimal approach with Typescript. Note that you also could use the decoded data already within the jwt.verify callback. I just prefer to do it this way for program control flow.

let isJWTValid = false;

jwt.verify(token, "mysecret", (error, data) => {
    if (error) {
        return;
    }

    isJWTValid = true;
});

if (!isJWTValid) {
    return "invalid token";
}

const decodedToken = jwt.decode(token) as { myValue: string }; // <--- Cast here for Typescript

const { myValue } = decodedToken;

console.log("myValue", myValue);

Upvotes: 0

hoangdv
hoangdv

Reputation: 16127

You can create a custom generic function, it will look the same as your comment, but I think this way will be better.

const verify = <T extends object>(token: string, secret: string): T => {
  return jwt.verify(token, secret) as T;
};

const sign = <T extends object>(payload: T, secret: string): string => {
  return jwt.sign(payload, secret);
};

export default const MyJwt = {
  sign,
  verify,
}

Usage,

import MyJwt from './MyJwt';

const data = MyJwt.verify<IdEmail>(token, process.env.JWT_Confirm_KEY);
// data now is a IdEmail

Upvotes: 1

brunogilferro
brunogilferro

Reputation: 11

After you verify, you must decode token. Try this:

const { id, email } = jwt.decode(token, { json: true }) as IdEmail;

Upvotes: 1

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