Auth callout python service

[jordanott]

I am trying to follow this example

I have a python flask server than grants a react client a jwt. I want to use that jwt to authenticate the nats client and authorize it to access certain subjects.

// after jwt is sent back from login it is put in localStorage
const authenticator = tokenAuthenticator(localStorage.getItem("jwt") as string);
const nc = await connect({ servers: "ws://127.0.0.1:9222/", authenticator: authenticator });

I am trying to authenticate that client using an auth callout service. The message is received but I get an authentication error after

import json
import asyncio
from nats.aio.client import Client as NATS

async def authenticate():
    nc = NATS()
    await nc.connect(servers=["nats://localhost:4222"], user="auth", password="auth")

    async def callback(msg):
        print(msg)
        claims = {
            "permissions": {"pub": [">"], "sub": [">"]},
        }
        await nc.publish(msg.reply, json.dumps(claims).encode())

    await nc.subscribe("$SYS.REQ.USER.AUTH", cb=callback)

asyncio.run(authenticate())

Here is the conf file

websocket {
  listen: 127.0.0.1:9222
  compression: true
  no_tls: true
  allowed_origins: ["http://localhost:3000"]
}

accounts {
  AUTH: {
    users: [ { user: auth, password: auth } ]
  }
  APP: {}
  SYS: {}
}
system_account: SYS

authorization {
  auth_callout {
    issuer: AA2WS5V5KIXTI26DFOT7DXSXHX3274WMESFPQ5FJSTR46G336WGVXUD4
    auth_users: [ auth ]
    account: AUTH
  }
}