What is the context package in Go and how do I use it?

What is the context package in Go and how do I use it?

The context package in Go provides a way to pass request-scoped values, cancellation signals, and deadlines across API boundaries.

Can you give me an example of how to create a context?

Sure! You can create a context using context.Background() or context.TODO(). Here's a simple example:

ctx := context.Background()

How do I use context for cancellation?

You can use context.WithCancel() to create a cancellable context. Here's an example:

ctx, cancel := context.WithCancel(context.Background())
// Call cancel when you want to cancel the context
cancel()

What are some common use cases for the context package?

Common use cases include managing timeouts for requests, passing user authentication data, and handling cancellation in goroutines.