beorn7 21de9ff88c Various improvements after code review ... Most importantly, `api.New` now takes an `Options` struct as an argument, which allows some other things done here as well: - Timout and concurrency limit are now in the options, streamlining the registration and the implementation of the limiting middleware. - A local registry is used for metrics, and the metrics used so far inside any of the api packages are using it now. The 'in flight' metric now contains the 'get' as a method label. I have also added a TODO to instrument other methods in the same way (otherwise, the label doesn't reall make sense, semantically). I have also added an explicit error counter for requests rejected because of the concurrency limit. (They also show up as 503s in the generic HTTP instrumentation (or they would, if v2 were instrumented, too), but those 503s might have a number of reasons, while users might want to alert on concurrency limit problems explicitly). Signed-off-by: beorn7 <beorn@soundcloud.com>		2019-02-12 18:42:08 +01:00
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v1	Various improvements after code review	2019-02-12 18:42:08 +01:00
v2	Propagate timeout to alert listing via context	2019-02-11 19:34:06 +01:00
api.go	Various improvements after code review	2019-02-12 18:42:08 +01:00