By default an unhandled panic function stops execution of programs, recover function can be used to handle fatal errors. Recover function can be used inside the defer function,

Example : Usage of recover function in Go Lang

package main

import (
    "fmt"
    errors "github.com/pkg/errors"
)

func main() {
    anotherMethod()
    println("After handling")
}

func anotherMethod() {
    defer func() {
        if err := recover(); err != nil {
            fmt.Printf("work failed: %+v \n", err)
        }
    }()
    method()
}

func method() (int, error) {
    panic("fatal error")
    return 1, errors.New("my error")
}

Output
work failed: fatal error
After handling