Error contains call stack information.
!Note that there will be some performance loss in obtaining the call stack information. Please using
goerror.SetRecordCaller(false)in a production environment if you have high performance requirements.
go get github.com/mengdu/goerrorpackage main
import (
"encoding/json"
"fmt"
"github.com/mengdu/goerror"
)
func main() {
err := func() error {
return goerror.New("Unknow Error!")
}()
fmt.Println(err)
// Error(0): Unknow Error!
// at main.main.func1 (/path-to-project/main.go:12)
// at main.main (/path-to-project/main.go:13)
// at runtime.main (/usr/local/go/src/runtime/proc.go:250)
// at runtime.goexit (/usr/local/go/src/runtime/asm_amd64.s:1571)
v, ok := err.(goerror.Error)
fmt.Println(v.Message(), v.Code(), ok) // Unknow Error! 0 true
bstr, _ := json.Marshal(map[string]interface{}{
"err": err,
})
fmt.Println(string(bstr)) // {"err":{"code":0,"message":"Unknow Error!"}}
}