UNAUTHENTICATED error when using the gRPC API with Python

[Lithimlin]

Hi, I’m trying to use the gRPC API in Python, but no matter what I try, I keep getting a grpc_status:16, status = StatusCode.UNAUTHENTICATED. Below is my MWE:

import grpc
from chirpstack_api import API

def main():
    target = "my.chirpstack.com:8000"
    server_token = "<TOKEN-FROM-CONFIG>"
    api_token = "<TOKEN-FROM-WEB-UI>"
    auth_token = [("authorization", f"Bearer {api_token}")]

    channel = grpc.insecure_channel(target)
    gateway_stub = api.GatewayServiceStub(channel)

    request = api.ListGatewaysRequest()
    response = gateway_stub.List(request, metadata=auth_token)
    # error on the line above
    for gateway in response.gateways:
        print(f"Gateway ID: {gateway.id}, EUI: {gateway.eui}")


if __name__ == "__main__":
    main()

When I use the server_token, I get grpc_message:"InvalidToken", when I use the api_token, I get grpc_message:"".

In both cases, I get the following in my server logs:

INFO gRPC{uri=/api.GatewayService/List}: chirpstack::api: Finished processing request status="200"

In the [api] section of the config, I have set the port to 8000.

What’s going on there? Why can’t I authenticate successfully? And why do the logs indicate a success regardless?