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node.jstypescriptjwt

Error when trying to Promisify JWT in Typescript

I am trying to promisify jwt verify in typescript, but I am getting this error.

"Expected 1 argument, but got 2.ts(2554)"

Sync version is working fine.

How to fix it?

import util from 'util';
const promisify = util.promisify;

const decoded = await promisify(jwt.verify)(token, process.env.JWT_SECRET as string);
console.log(decoded);
Solution

  • Glancing at the types for jsonwebtoken and the documentation for verify that should have worked. But we don't live in a perfect world. You can always promisify the function yourself:

    const jwtVerifyPromisified = (token, secret) => {
    return new Promise((resolve, reject) => {
        jwt.verify(token, secret, {}, (err, payload) => {
            if (err) {
                reject(err);
            } else {
                resolve(payload);
            }
        });
    });
}

    You'll have to add some annotations but you get the idea.