How should the Recovery mechanism be properly declared in a system?

In Go, the recover mechanism is used to catch panics (panic) and prevent the program from crashing. Proper declaration and use of recover should occur inside a function deferred with defer. This allows catching a panic if it occurred in the called function and handling it.

Example of correct usage:

func safeCall() {
    defer func() {
        if r := recover(); r != nil {
            fmt.Println("Recovered from panic:", r)
        }
    }()

    // Code that might cause a panic
    panic("something went wrong")
}

Key points:

• recover only works inside a deferred function (defer).
• If recover is called outside defer, it will not catch a panic.
• Usually, recover is used for error logging and ensuring program stability.