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This article will explain in detail the example analysis of golang high-performance http request fasthttp. The editor thinks it is very practical, so I share it with you for reference. I hope you can get something after reading this article.

Fasthttp is a http framework under golang. As its name implies, compared with the native http implementation, it is characterized by its speed. According to the official website, its client and server performance is ten times better than the native one.

Its high performance mainly comes from "reuse". Through the reuse of service protocols and memory variables, it saves a lot of cost of resource allocation.

Fasthttp is said to be the best http library for golang at present, with a 10-fold improvement compared to the built-in net/http. For more information, please see the official introduction: valyala/fasthttp.

1, install fasthttp first

Go get-u github.com/valyala/fasthttp

2, a simple get request

Package mainimport ("github.com/valyala/fasthttp") func main () {url: = `http://httpbin.org/get` status, resp, err: = fasthttp.Get (nil, url) if err! = nil {fmt.Println ("request failed:", err.Error ()) return} if status! = fasthttp.StatusOK {fmt.Println ("request did not succeed:" Status) return} fmt.Println (string (resp))}

2, simple Post request

Func main () {url: = `http://httpbin.org/post?key=123` / / fill in the form Similar to net/url args: = & fasthttp.Args {} args.Add ("name", "test") args.Add ("age", "18") status, resp, err: = fasthttp.Post (nil, url, args) if err! = nil {fmt.Println ("request failed:", err.Error () return} if status! = fasthttp.StatusOK {fmt.Println ("request did not succeed:" Status) return} fmt.Println (string (resp))}

For example, some API services require us to provide json body or xml body, that is, Content-Type is application/json, application/xml or other types.

Func main () {url: = `http://httpbin.org/post?key=123` req: = & fasthttp.Request {} req.SetRequestURI (url) requestBody: = [] byte (` {"request": "test"} `) req.SetBody (requestBody) / / default is application/x-www-form-urlencoded req.Header.SetContentType ("application/json") req.Header.SetMethod ("POST") resp: = & fasthttp.Response {} client: = & fasthttp.Client {} if err: = client.Do (req Resp) Err! = nil {fmt.Println ("request failed:", err.Error ()) return} b: = resp.Body () fmt.Println ("result:\ r\ n", string (b))}

Flipping through the documentation found that he provided several methods: AcquireRequest (), AcquireResponse (), and recommended that req and resp be obtained through AcquireRequest and AcquireResponse in code with performance requirements.

Func main () {url: = `http://httpbin.org/post?key=123` req: = fasthttp.AcquireRequest () defer fasthttp.ReleaseRequest (req) / / need to release resources after use / / default is application/x-www-form-urlencoded req.Header.SetContentType ("application/json") req.Header.SetMethod ("POST") req.SetRequestURI (url) requestBody: = [] byte (`{") Request ":" test "} `) req.SetBody (requestBody) resp: = fasthttp.AcquireResponse () defer fasthttp.ReleaseResponse (resp) / / need to release resources if err: = fasthttp.Do (req) Resp) Err! = nil {fmt.Println ("request failed:", err.Error ()) return} b: = resp.Body () fmt.Println ("result:\ r\ n", string (b))} this is the end of the article on "sample Analysis of golang High performance http request fasthttp". I hope the above content can be helpful to you, so that you can learn more knowledge. If you think the article is good, please share it for more people to see.

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