How to Limit Bandwidth of HTTP GET Requests in Go?

Susan Sarandon
Release: 2024-10-29 23:41:29
Original
936 people have browsed it

How to Limit Bandwidth of HTTP GET Requests in Go?

Limiting Bandwidth of HTTP GET Requests in Go

As a novice to Go, one might encounter the need to restrict the bandwidth consumption of http.Get() requests. While third-party packages offer convenient wrappers, this article dives deep into the underlying mechanisms of bandwidth limiting.

Accessing the HTTP Reader

To control the bandwidth, accessing the underlying HTTP reader is crucial. In Go, this reader is embedded within the http.Response object.

Bandwidth Limiting

The io.CopyN function in Go allows for controlled copying of data. By specifying the number of bytes (datachunk) and the time interval (timelapse), developers can effectively throttle the bandwidth usage.

Example Implementation

The following code snippet demonstrates how to limit bandwidth in Go:

<code class="go">package main

import (
    "io"
    "net/http"
    "os"
    "time"
)

var datachunk int64 = 500       //Bytes
var timelapse time.Duration = 1 //per seconds

func main() {
    responce, _ := http.Get("http://google.com")
    for range time.Tick(timelapse * time.Second) {
        _, err := io.CopyN(os.Stdout, responce.Body, datachunk)
        if err != nil {
            break
        }
    }
}</code>
Copy after login

In this example, the bandwidth is limited to datachunk bytes every timelapse seconds, effectively restricting the transfer rate. This process iterates until the HTTP response is fully received.

The above is the detailed content of How to Limit Bandwidth of HTTP GET Requests in Go?. For more information, please follow other related articles on the PHP Chinese website!

source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn:Public welfare online PHP training,Help PHP learners grow quickly!