A feature request for access Kafka write & read metric counters

[orxibi]

Hello,
I'm using K6 for testing Kafka clusters before migration plan.
And I need to be able to set a limit to the test based on one of the of the k6 Kafka metrics that are used in the summary report.
For example setting up threshold when kafka.writer.message,bytes = 1GB, enabling an access to these metrics will help me make it happened.

[mostafa]

With the changes in #31 and the usage of the new k6 metrics API, you can use thresholds on the exported metrics, as shown below and in this commit.

xk6-kafka/scripts/test_json.js

Lines 21 to 27 in e1a810d

	export const options = {
	thresholds: {
	// Base thresholds to see if the writer or reader is working
	"kafka.writer.error.count": ["count == 0"],
	"kafka.reader.error.count": ["count == 0"],
	},
	};

So I consider this solved. Also, please keep an eye on #23 if you want to access the rest of the metrics published by kafka-go.