Gzip

Gzip 中间件使用 gzip 压缩方案压缩 HTTP 响应。

所有核心中间件都位于 middleware 包中：

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

用法

e.Use(middleware.Gzip())

自定义配置

e := echo.New()
e.Use(middleware.GzipWithConfig(middleware.GzipConfig{
  Level: 5,
}))

e := echo.New()
e.Use(middleware.GzipWithConfig(middleware.GzipConfig{
  Skipper: func(c *echo.Context) bool {
    return strings.Contains(c.Path(), "metrics") // change "metrics" to your own path
  },
}))

配置

GzipConfig · github.com/labstack/echo/v5@5196b9b

字段说明由英文源码注释生成。

包源码中的字段
字段	类型	说明	源码
`Skipper`	`Skipper`	Skipper defines a function to skip middleware.	L27
`Level`	`int`	Gzip compression level. Optional. Default value -1.	L31
`MinLength`	`int`	Length threshold before gzip compression is applied. Optional. Default value 0. Most of the time you will not need to change the default. Compressing a short response might increase the transmitted data because of the gzip format overhead. Compressing the response will also consume CPU and time on the server and the client (for decompressing). Depending on your use case such a threshold might be useful. See also: https://webmasters.stackexchange.com/questions/31750/what-is-recommended-minimum-object-size-for-gzip-performance-benefits	L44

包源码中的函数
类型	源码
`func Gzip() echo.MiddlewareFunc`	L59
`func GzipWithConfig(config GzipConfig) echo.MiddlewareFunc`	L64

默认配置

// Effective defaults applied when fields are left unset.
GzipConfig{
  Skipper:   DefaultSkipper,
  Level:     -1,
  MinLength: 0,
}