How to use jwt token in WSClient

[hearthewind]

I am trying to use the WSClient to get data, however, I am getting {"type":"error","message":"authentication failure"}.

My understanding is that I need a jwt token, which I got from

jwt_token = jwt_generator.build_ws_jwt(api_key, api_secret)

However, I do not know how to use this token in my WSClient, my code is as follows

self.ws_client = WSClient(api_key=api_key, api_secret=api_secret, on_message=self.on_message, verbose=True)
self.ws_client.open()
self.ws_client.subscribe(product_ids=[product_id], channels=channels)

Could anyone please help me with this?

[github-actions]

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[urischwartz-cb]

The JWT token will be automatically generated when you subscribe to channels using the WSClient. There is no need to generate it yourself.
What channels are you trying to subscribe to? Are you able to make REST requests using the same API key and secret?

[hearthewind]

I realized I will get {"type":"error","message":"authentication failure"} if I try to subscribe to the 'heartbeat' channel, subscribing to other channels is fine.

Could you please explain why this is? What does the 'heartbeat' channel do, and why the auth failure?

I can use the REST requests just fine.

[urischwartz-cb]

Heartbeats channel does not require authentication. More details in our docs here: https://docs.cdp.coinbase.com/advanced-trade/docs/ws-channels#heartbeats-channel

It's possible you have a typo. Try using 'heartbeats' rather than 'heartbeat'