Body Dump

O middleware Body Dump captura os payloads de request e response e os passa para um handler registrado. Em geral, ele é usado para debugging ou logging.

Todo o middleware principal fica no pacote middleware:

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

Uso

e := echo.New()
e.Use(middleware.BodyDump(func(c *echo.Context, reqBody, resBody []byte, err error) {
  // Handle the request and response bodies.
}))

Configuração customizada

e := echo.New()
e.Use(middleware.BodyDumpWithConfig(middleware.BodyDumpConfig{}))

Configuração

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

  // Handler receives the request and response payloads and the handler error, if any.
  // Required.
  Handler BodyDumpHandler

  // MaxRequestBytes limits how much of the request body to dump. If the request body
  // exceeds this limit, only the first MaxRequestBytes are dumped and the handler
  // receives truncated data.
  // Default: 5 * MB (5,242,880 bytes). Set to -1 to disable limits (not recommended).
  MaxRequestBytes int64

  // MaxResponseBytes limits how much of the response body to dump. If the response body
  // exceeds this limit, only the first MaxResponseBytes are dumped and the handler
  // receives truncated data.
  // Default: 5 * MB (5,242,880 bytes). Set to -1 to disable limits (not recommended).
  MaxResponseBytes int64
}

O Handler tem a assinatura:

type BodyDumpHandler func(c *echo.Context, reqBody []byte, resBody []byte, err error)

Configuração padrão

// Effective defaults applied when fields are left unset (Handler is required).
BodyDumpConfig{
  Skipper:          DefaultSkipper,
  MaxRequestBytes:  5 * MB,
  MaxResponseBytes: 5 * MB,
}