Connection URL

nats://<IP_DE_LA_VM>:30422

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With token authentication

nats://<AUTH_TOKEN>@<IP_DE_LA_VM>:30422

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ℹ️ If you did not configure the token during deployment, look for it in the deployment outputs in the Cuemby portal.

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Verify connectivity with NATs CLI

# Install nats CLI
`curl -sf https://binaries.nats.dev/nats-io/natscli/nats@latest | sh`

# Verify connection
`nats server info` --server nats://<AUTH_TOKEN>@<VM_IP>:30422`

# Publish a test message
`nats pub my.subject "hello world"` --server nats://<AUTH_TOKEN>@<VM_IP>:30422`

# Subscribe to a subject
`nats sub my.subject` --server nats://<AUTH_TOKEN>@<VM_IP>:30422`

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Connection strings by language

// Go (nats.go)
nc, _ := nats.Connect("nats://<IP_DE_LA_VM>:30422",
    nats.Token("<AUTH_TOKEN>"))

# Python (nats-py)
nc = await nats.connect("nats://<IP_DE_LA_VM>:30422",
    token="<AUTH_TOKEN>")

// Node.js (nats.ws / nats.js)
const nc = await connect({
    servers: "<IP_DE_LA_VM>:30422",
    token: "<AUTH_TOKEN>"
});

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Monitoring UI

NATS exposes a real-time metrics dashboard on port 30822:

http://<IP_DE_LA_VM>:30822/

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Useful endpoints:

# General server info
curl http://<VM_IP>:30822/varz

# JetStream status
curl http://<VM_IP>:30822/jsz

# Active connections
curl http://<VM_IP>:30822/connz

# View the NATS pod
`kubectl get pods -A | grep nats`

# View the installation log
`tail -f /var/log/cuemby/bootstrap.log`

# Verify that the ports are listening
`ss -tlnp | grep -E '30422|30822'`

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Expected output:

NAME                          READY   STATUS    RESTARTS
nats-jetstream-xxxxxxxxx      1/1     Running   0        ← Running ✓

# Create a stream
nats stream add MY_STREAM
--subjects "events.>"
--storage file
--server nats://<AUTH_TOKEN>@<VM_IP>:30422

# View existing streams
nats stream ls
--server nats://<AUTH_TOKEN>@<VM_IP>:30422

# Publish a persisted message
nats pub events.new "{'id': 1, 'type': 'log'}"
--server nats://<AUTH_TOKEN>@<VM_IP>:30422

# Create a consumer and read messages
nats consumer add MY_STREAM MY_CONSUMER
--server nats://<AUTH_TOKEN>@<VM_IP>:30422

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💡 Tip: JetStream uses `--storage file` for disk persistence and `--storage memory` for maximum speed without persistence. For production, always use `file`.