Custom Claim Does Not Show Up in Access Token

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1

I’m having issues setting a custom claim on the accessToken in the Flow > Login script. I’m using the auth0 SPA JS SDK GitHub - auth0/auth0-spa-js: Auth0 authentication for Single Page Applications (SPA) with PKCE

Here is how I’m creating the client:

auth0.createAuth0Client({
        domain: ...,
        clientId: ...,
        authorizationParams: {
            redirect_uri: "http://localhost:3000"
        },
        useRefreshTokens: true,
        cacheLocation: 'localstorage'
    })

Here is the Flow > Login script to add a custom claim to the accessToken

exports.onExecutePostLogin = async (event, api) => {
  if (event.authorization) {
    api.accessToken.setCustomClaim('test', "hello");
  }
}

but I do not see the custom claim come through in the accessToken when calling const t = await auth0Client.getTokenSilently(); This returns a JWT with no data payload ...mwzciJ9..H7dP7YQ1...

However it works when setting the custom claim on the idToken when using

exports.onExecutePostLogin = async (event, api) => {
  if (event.authorization) {
    api.idToken.setCustomClaim('test', "hello");
  }
}

Any ideas why the accessToken does not include the custom claim from the Flow > Login script?

3

Hello @mark29 welcome to the community!

This is due to the lack of an audience param being passed in the authorize request - You can add this param in authorizationOptions. Without it, you’ll get an opaque token returned as you’ve seen.

https://community.auth0.com/t/what-is-the-audience/71414

4

I’ve added the audience to the config but getting this error now

Auth0Client.ts:503 Uncaught (in promise) Error: Service not found: https://nativeframe-prod-usc1b.nativeframe.com
    at ce.handleRedirectCallback (Auth0Client.ts:503:13)
    at auth.js:68:31

Options for reference

auth0.createAuth0Client({
        domain: ...,
        clientId: ...,
        authorizationParams: {
            redirect_uri: "http://localhost:3000",
            audience: "https://nativeframe-prod-usc1b.nativeframe.com"
        },
        useRefreshTokens: true,
        cacheLocation: 'localstorage'
    })
1 Like
5

Do you have https://nativeframe-prod-usc1b.nativeframe.com as a registered API in your dashboard?

6

Ah no, that’s what it was. Thank you!

1 Like
7

Awesome, thanks for confirming!

8

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