Recover

O middleware Recover recupera panics em qualquer ponto da cadeia, imprime a stack trace e passa o controle para o HTTPErrorHandler centralizado.

Todo o middleware principal fica no pacote middleware:

import "github.com/labstack/echo/v5/middleware"

Uso

e.Use(middleware.Recover())

Configuração customizada

e := echo.New()
e.Use(middleware.RecoverWithConfig(middleware.RecoverConfig{
  StackSize: 1 << 10, // 1 KB
}))

O exemplo acima usa um StackSize de 1 KB e valores padrão para DisableStackAll e DisablePrintStack.

Configuração

type RecoverConfig struct {
  // Skipper defines a function to skip middleware.
  Skipper Skipper

  // Size of the stack to be printed.
  // Optional. Default value 4KB.
  StackSize int

  // DisableStackAll disables formatting stack traces of all other goroutines
  // into the buffer after the trace for the current goroutine.
  // Optional. Default value false.
  DisableStackAll bool

  // DisablePrintStack disables printing the stack trace.
  // Optional. Default value false.
  DisablePrintStack bool
}

Configuração padrão

var DefaultRecoverConfig = RecoverConfig{
  Skipper:           DefaultSkipper,
  StackSize:         4 << 10, // 4 KB
  DisableStackAll:   false,
  DisablePrintStack: false,
}