Aedes VS frank_jwt

Any reason to not use https://github.com/moscajs/aedes? mqtt is a standard protocol. I see there is an mqtt adapter for kafka, and a broker to translate between systems.

yes, we did it as well. We are using the aedes broker, wrapped inside its own module/service. Here you can find the broker lib https://github.com/moscajs/aedes

Any of the open-source MQTT brokers out there should do the job. I personally use Mosquitto for most of my projects, but RabbitMQ, Aedes or any other broker should all just work.

In Aedes, you can implement topic-level security with the authorizePublish and authorizeSubscribe handlers

aedes: Barebone MQTT server

NOTE: Never store sensitive information about a client in the payload as the JWT is just encoded and not encrypted. You can paste the JWT I gave as an example above in this cool site which basically allows you to see in decoded. JSON Web Tokens - jwt.io

Although they did not make it into production, I experimented with the RabbitMQ message broker, Python (Django, Flask), Kubernetes + minikube, JWT, and NGINX. This was a hobby project, but I intended to learn about microservices along the way.

JSON Web Token (JWT) creation to extend user authentication to server-side functions

The (probably) most famous web resource about JWT - https://jwt.io - provides such a definition of JSON Web Tokens:

If you want to play with JWT and put these concepts into practice, you can use jwt.ioDebugger to decode, verify, and generate JWTs.

In this context, JSON Web Tokens (JWTs) play a crucial role.

Json Web Token (JWT): Even though it is more like an industry standard, we will use JWTs for stateless authentication in this article. If you want to learn more, you can refer to the official documentation.

Se pegar o token jwt podemos ver o que tem dentro, usando o site jwt.io.

JWT token is not encrypted, it's just base64UrlEncoded. So, don't put any sensitive information in payload. Meaning, if for some reason an access token is stolen, an attacker will be able to decode it and see information in payload.Check it here.