On Fri, Jul 8, 2016, at 01:39 PM, Viktor Kojouharov wrote: > It would have been quite useful for the stdlib to define a logger > interface, so that third party loggers would implement it and allow > for easier switching between them Maybe, but one strength of Go's interfaces is that consumers of packages can define their own interfaces and don't need to rely on the package creator. In fact it gives the consumer a lot of power since they can define just the few methods they need. This allows a lot more interoperability than everyone trying to agree on the one true logger interface. In my experience, a rough rule of thumb is that interfaces are best used as a way of configuring your code for different behaviours. If you need to be able to swap logging implementations then define the minimum interface you need to be supported and then either directly use the 3rd party packages you need or write an adapter. -- Ian
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