December 2017
Intermediate to advanced
316 pages
6h 58m
English
Content preview from Building RESTful Web services with Go
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Adding instrumentation to your microservice
For any microservice, along with logging, instrumentation is vital. The metrics package of Go Kit records statistics about your service’s runtime behavior: counting the number of jobs processed, recording the duration of requests after they have finished, and so on. This is also a middleware that tampers the HTTP requests and collects metrics. To define a middleware, simply add one more struct, similar to the logging middleware. Metrics are useless unless we monitor. Prometheus is a metrics monitoring tool that can collect latency, number of requests for a given service, and so on. Prometheus scrapes the data from the metrics that Go Kit generates.
You can download the latest stable version of Prometheus ...
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