Is it feasible to publish metrics for Reactor-Netty more on connections?

In one of our spring-reactive projects, I exposed the default HTTP-Client metrices. This gives me some insider information about upstream. But, now I need a breakdown of the response time as we see in Postman. I would like to know if it is possible to expose it using the current implementation or through a third-party library.

Here I have attached a piece of code, through which I am exposing some WebClient attributes.

            HttpClient client = HttpClient.create(ConnectionProvider.builder("fixed")
                        .maxConnections(700)
                        .maxIdleTime(Duration.ofMillis(config.getPoolMaxIdleTime()))
                        .maxLifeTime(Duration.ofMillis(config.getPoolMaxLifeTime()))
                        .metrics(true) //metrices exposed here
                        .build())
                .option(ChannelOption.SO_TIMEOUT, config.getSocketTimeout())
                .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, config.getConnectionTimeout())
                .doOnConnected(connection -> connection
                        .addHandler(new ReadTimeoutHandler(config.getReadTimeout(), TimeUnit.MILLISECONDS))
                        .addHandler(new WriteTimeoutHandler(config.getWriteTimeout(), TimeUnit.MILLISECONDS))
                );

This is how Postman breakdown response time in their tool.

You enabled the metrics only on the Connection Pool level, but what you need actually is all HttpClient metrics.

You can do it like this:

HttpClient.create(...)
          .metrics(true, ...)

Using the code above, you will be able to see metrics on the Connection Pool level, metrics related to request/response, memory metrics. More about all of this can be found in the Reference Documentation.

UPDATE

Here is how your code should look like

            HttpClient client = HttpClient.create(ConnectionProvider.builder("fixed")
                    .maxConnections(700)
                    .maxIdleTime(Duration.ofMillis(config.getPoolMaxIdleTime()))
                    .maxLifeTime(Duration.ofMillis(config.getPoolMaxLifeTime()))
                    .build())
            .option(ChannelOption.SO_TIMEOUT, config.getSocketTimeout())
            .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, config.getConnectionTimeout())
            .doOnConnected(connection -> connection
                    .addHandler(new ReadTimeoutHandler(config.getReadTimeout(), TimeUnit.MILLISECONDS))
                    .addHandler(new WriteTimeoutHandler(config.getWriteTimeout(), TimeUnit.MILLISECONDS))
            )
            .metrics(true, s -> s);