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Documentation
Grafana k6
JavaScript API
k6/x/mqtt
Client
Client.publishAsync( topic, payload, [options] )
Open source
Client.publishAsync()
Publish a message asynchronously. Returns a promise that resolves when the message is published.
Signature
JavaScript
await client.publishAsync(topic, payload, options)Parameters
| Parameter | Type | Description |
|---|---|---|
| topic | string | Topic to publish to |
| payload | string | ArrayBuffer | Message payload (string or binary data) |
| options | object | Optional publish configuration |
| options.qos | number | Quality of Service level (0, 1, or 2). Default: 0 |
| options.retain | boolean | Whether the message should be retained by the broker. Default: false |
| options.tags | object | Custom tags for metrics (key-value pairs) |
Returns
A promise that resolves when the message is successfully published.
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