[BUG] Type error with CognitoJwtVerifier.create

[etroynov]

When i try use configuration from var i got an error:

But when i do it directly:

everything is fine.

Versions

• aws-jwt-verify: 4.0.0;
• env: lambda@edge
• typescript: 5.0.2

[ottokruse]

This is expected I think, because if you predefine the config object like you did, TypeScript types each member as string but tokenUse must be access or id, a mere string won't do.

This should work:

const config = {
    userPoolId: "xxxxxxxxxxx",
    tokenUse: "access" as const, // changed
    clientId: "xxxxxxxxxxxx"
}

const verifier = CognitoJwtVerifier.create(config);

[ottokruse]

Even more info: https://mariusschulz.com/blog/const-assertions-in-literal-expressions-in-typescript