Jose@3: error TS1109: Expression expected

[cnuss]

Greetings!

This is probably a basic TypeScript config issue but I'm a bit confused on an error after implementing [email protected].

In short, here's my src/index.ts (similar to this)

import jwtVerify from 'jose/jwt/verify';
import createRemoteJWKSet from 'jose/webcrypto/jwks/remote';

const JWKS = createRemoteJWKSet(new URL('https://www.googleapis.com/oauth2/v3/certs'));

const jwt = 'ey...';

jwtVerify(jwt, JWKS).then(result => {
  console.log(result.protectedHeader);
  console.log(result.payload);
});

When I run a tsc, I get the following error:

yarn run v1.22.4
$ tsc
node_modules/jose/src/jwk/parse.ts:60:9 - error TS1109: Expression expected.

60   alg ||= jwk.alg
           ~

node_modules/jose/src/jwk/parse.ts:73:24 - error TS1109: Expression expected.

73       octAsKeyObject ??= jwk.ext !== true
                          ~


Found 2 errors.

Here's my tsconfig.json:

{
  "compilerOptions": {
    "target": "ES2019",
    "module": "CommonJS",
    "declaration": true,
    "outDir": "./dist",
    "strict": true
  },
  "include": ["src"],
  "exclude": ["node_modules", "**/__tests__/*"]
}

Is something misconfigured or is there an issue that I need to report?

[panva]

You're importing experimental node webcrypto runtime that only works in node >15.0.0

What lead you to import "jose/webcrypto/jwks/remote"?

[cnuss]

Thanks for your quick response @panva ! Good eye! but I've also now tried:

import jwtVerify from 'jose/jwt/verify';
import createRemoteJWKSet from 'jose/jwks/remote';

const JWKS = createRemoteJWKSet(new URL('https://www.googleapis.com/oauth2/v3/certs'));

const jwt = 'ey...';

jwtVerify(jwt, JWKS).then(result => {
  console.log(result.protectedHeader);
  console.log(result.payload);
});

The same error occurs.

I've also tried node-15.3.0, and have the same error:

$ nodeenv -n 15.3.0 ~/node-15.3.0
 * Install prebuilt node (15.3.0) ..... done.
$ source ~/node-15.3.0/bin/activate
$ yarn build
yarn run v1.22.4
$ tsc
node_modules/jose/src/jwk/parse.ts:60:9 - error TS1109: Expression expected.

60   alg ||= jwk.alg
           ~

node_modules/jose/src/jwk/parse.ts:73:24 - error TS1109: Expression expected.

73       octAsKeyObject ??= jwk.ext !== true
                          ~


Found 2 errors.

error Command failed with exit code 2.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

Does anything else leap off the page for you?

I'm also trying to understand what ||= and ??= mean in variable assignment...

[panva]

The snippet works just fine with regular node. I'm using typescript to generate bundles from these very source files. The syntax is valid and compiled from properly.

Possibly update your typescript version. Else i have no clue and it's simply a tooling issue.

[cnuss]

Nailed it @panva thank you!

yarn add --dev typescript@4 did the trick (specifically I landed on [email protected])

[panva]

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