echo/website/content/middleware/body-limit.md

+++
title = "Body Limit Middleware"
description = "Body limit middleware for Echo"
[menu.main]
  name = "Body Limit"
  parent = "middleware"
  weight = 5
+++

Body limit middleware sets the maximum allowed size for a request body, if the
size exceeds the configured limit, it sends "413 - Request Entity Too Large"
response. The body limit is determined based on both `Content-Length` request
header and actual content read, which makes it super secure.

Limit can be specified as `4x` or `4xB`, where x is one of the multiple from K, M,
G, T or P.

*Usage*

```go
e := echo.New()
e.Use(middleware.BodyLimit("2M"))
```

## Custom Configuration

*Usage*

```go
e := echo.New()
e.Use(middleware.BodyLimitWithConfig(middleware.BodyLimitConfig{}))
```

## Configuration

```go
BodyLimitConfig struct {
  // Skipper defines a function to skip middleware.
  Skipper Skipper

  // Maximum allowed size for a request body, it can be specified
  // as `4x` or `4xB`, where x is one of the multiple from K, M, G, T or P.
  Limit string `json:"limit"`
}
```

*Default Configuration*

```go
DefaultBodyLimitConfig = BodyLimitConfig{
  Skipper: defaultSkipper,
}
```