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在Go-Chi中激活gzip压缩中间件

来源:stackoverflow

时间:2024-03-04 17:33:27 203浏览 收藏

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问题内容

如何使用 go-chi 框架的 gzip 中间件启用 gzip 压缩?

尝试使用此处显示的示例:

https://github.com/go-chi/chi/issues/204

但是当我检查curl时,我得到了这个:

$ curl -h "accept-encoding: gzip" -i http://127.0.0.1:3333
http/1.1 405 method not allowed
date: sat, 31 aug 2019 19:06:39 gmt

我尝试了代码“hello world”:

package main

import (
    "net/http"

    "github.com/go-chi/chi"
    "github.com/go-chi/chi/middleware"
)

func main() {
    r := chi.newrouter()
    r.use(middleware.requestid)
    r.use(middleware.logger)
    //r.use(middleware.defaultcompress) //using this produces the same result
    r.use(middleware.compress(5, "gzip"))
    r.get("/", hello)
    http.listenandserve(":3333", r)
}

func hello(w http.responsewriter, r *http.request){
    w.header().set("content-type", "text/html") //according to the documentation this must be here to enable gzip
    w.write([]byte("hello world\n"))
}

但是当我尝试用curl验证时,结果是一样的

$ curl -h "accept-encoding: gzip" -i http://127.0.0.1:3333
http/1.1 405 method not allowed
date: sat, 31 aug 2019 19:06:39 gmt

发生什么事了?


解决方案


使用带注释的 middleware.defaultcompress 和正常的 get 请求。

package main

import (
    "net/http"

    "github.com/go-chi/chi"
    "github.com/go-chi/chi/middleware"
)

func main() {
    r := chi.newrouter()
    r.use(middleware.requestid)
    r.use(middleware.logger)
    r.use(middleware.defaultcompress)
    r.get("/", hello)
    http.listenandserve(":3333", r)
}

func hello(w http.responsewriter, r *http.request) {
    w.header().set("content-type", "text/html")
    w.write([]byte("hello world\n"))
}

尝试使用 curl

$ curl -v http://localhost:3333 --compressed
* rebuilt url to: http://localhost:3333/
*   trying 127.0.0.1...
* tcp_nodelay set
* connected to localhost (127.0.0.1) port 3333 (#0)
> get / http/1.1
> host: localhost:3333
> user-agent: curl/7.58.0
> accept: */*
> accept-encoding: deflate, gzip
>
< http/1.1 200 ok
< content-encoding: gzip
< content-type: text/html
< date: sat, 31 aug 2019 23:37:52 gmt
< content-length: 36
<
hello world
* connection #0 to host localhost left intact

或者httpie

$ http :3333
http/1.1 200 ok
content-encoding: gzip
content-length: 36
content-type: text/html
date: sat, 31 aug 2019 23:38:31 gmt

hello world

其他答案现在已经过时了。我必须自己解决这个问题,所以这是我发现的。

您的错误在这里:

r.use(middleware.compress(5, "gzip"))

第二个参数(“类型”)指的是要应用压缩的内容类型。例如:"text/html""application/json"

只需添加要压缩的内容类型列表,或完全删除参数:

func main() {
    r := chi.newrouter()
    r.use(middleware.requestid)
    r.use(middleware.logger)
    r.use(middleware.compress(5))
    r.get("/", hello)
    http.listenandserve(":3333", r)
}

这将压缩 middleware.Compress 中默认列表中定义的所有内容类型:

var defaultCompressibleContentTypes = []string{
    "text/html",
    "text/css",
    "text/plain",
    "text/javascript",
    "application/javascript",
    "application/x-javascript",
    "application/json",
    "application/atom+xml",
    "application/rss+xml",
    "image/svg+xml",
}

祝你好运!

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