What are some real-world examples of interfaces in Go?

What are some real-world examples of interfaces in Go?

In Go, interfaces are used to define behaviors. For example, the io.Reader interface is implemented by types like os.File and *bytes.Buffer, allowing different data sources to be read in a uniform way.

Can you give me another example?

Sure! The http.Handler interface is another example. It allows different types to handle HTTP requests, enabling flexibility in web server implementations.

How do interfaces improve code flexibility?

Interfaces allow you to write functions that can accept any type that implements the interface, promoting code reuse and decoupling.

Are there any downsides to using interfaces?

One downside is that they can introduce complexity, as it may be harder to track which types implement which interfaces, especially in large codebases.