incubator-pegasus
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Feature: support http client API for the components that need to access http services
According to https://github.com/apache/incubator-pegasus/issues/1206, metrics would be fetched by RESTful API.
In Pegasus, some components require access to http services. For example, Pegasus shell needs to access metrics. Thus, while providing RESTful service, we should also offer http client API to for the components that need to access http services.