Also, after using @Times annotation at the method level, I am getting
metrics consist of of
*http_server_requests_seconds_count{exception="None",method="GET",status="200",uri="/students",}
2.0*
While I was hoping this will return tags from Http request and response as
per the default implementation inside class DefaultWebMvcTagsProvider
@Override
public Iterable<Tag> getTags(HttpServletRequest request, HttpServletResponse
response, Object handler,
Throwable exception) {
Tags tags = Tags.of(WebMvcTags.method(request), WebMvcTags.uri(request,
response, this.ignoreTrailingSlash),
WebMvcTags.exception(exception), WebMvcTags.status(response), WebMvcTags.
outcome(response));
for (WebMvcTagsContributor contributor : this.contributors) {
tags = tags.and(contributor.getTags(request, response, handler, exception));
}
return tags;
} Any idea what am I missing here? Also, I have added custom class to
override the behavior but did not work. @Bean WebMvcTagsProvider
webMvcTagsProvider() { return new WebMvcTagsProvider() {
@SuppressWarnings("unchecked") @Override public Iterable<Tag>
getTags(HttpServletRequest request, HttpServletResponse response, Object
handler, Throwable exception) { return ((Map<String, String>)
request.getAttribute(HandlerMapping.URI_TEMPLATE_VARIABLES_ATTRIBUTE))
.entrySet() .stream() .map(entry -> new ImmutableTag(entry.getKey(),
entry.getValue())) .collect(Collectors.toList()); } @Override public
Iterable<Tag> getLongRequestTags(HttpServletRequest request, Object
handler) { return new ArrayList<>(); } }; }
Any advise on what I am doing wrong?
Appreciate your help!
Thanks,
Ketan
On Thursday, 7 May 2020 12:22:39 UTC+5:30, Ketan Talreja wrote:
>
> Hi Guys,
>
> Hope everyone is doing well!
>
> I have started using Prometheus to collect metrics for my application
> which is implemented in Java spring boot 2.x framework. I have used
> "micrometer-registry-prometheus" library but this required some annotation
> to be done in the code and moreover customize the bean configuration.
>
> *Monitoring use-case for my application -*
> *1*. I have to count the number of time REST API/Endpoint has been invoked
> *2.* I have to also capture REST request Input/response Output generated
> and scrape it to metrics server i.e. Prometheus and using this metrics I
> have to calculate i.e. number of time the "value" is returned in the
> response output and same for request input i.e. number of time the specific
> "value" is passed as in the input payload.
>
> Could you please help how can I achieve above two points using Prometheus
> and its client-libraries? And is there a way to achieve without
> instrumenting the app code? This will help to decouple the application
> codebase from instrumentation.
>
> Thanks!!
> Ketan
>
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