How to use proxy for HTTP requests in Golang?

Using a proxy for HTTP requests in Go can bypass firewalls, hide IP addresses, and improve performance. The following steps implement proxy requests: 1. Import the necessary packages. 2. Create a proxy URL. 3. Create a proxy HTTP transport. 4. Create an HTTP client. 5. Use the client to make the request. Practical case: Use code to bypass the firewall to access restricted URLs, make requests through proxy transmission, and print the response status.

How to use a proxy for HTTP requests in Golang

Using a proxy for HTTP requests is useful in many situations, such as:

• Bypass firewalls or geo-restrictions
• Hide your real IP address
• Improve request performance

Steps to use a proxy for HTTP requests in Go As follows:

1. Import the necessary packages:

package main

import (
    "fmt"
    "net/http"
    "net/http/httputil"
    "net/url"
)

2. Create a proxy URL:

proxyURL, err := url.Parse("http://127.0.0.1:8080")
if err != nil {
    fmt.Println(err)
    return
}

3. Create a proxy HTTP transfer:

transport := &http.Transport{
    Proxy: http.ProxyURL(proxyURL),
}

4. Create an HTTP client:

client := &http.Client{
    Transport: transport,
}

5. Use HTTP client to make a request:

resp, err := client.Get("https://www.example.com")
if err != nil {
    fmt.Println(err)
    return
}

Practical Case

Consider a scenario where you need to bypass the firewall to access restricted URLs. This can be done using the following code:

import (
    "fmt"
    "net/http"
    "net/http/httputil"
    "net/url"
)

func main() {
    proxyURL, err := url.Parse("http://127.0.0.1:8080")
    if err != nil {
        fmt.Println(err)
        return
    }
    transport := &http.Transport{
        Proxy: http.ProxyURL(proxyURL),
    }
    client := &http.Client{
        Transport: transport,
    }
    resp, err := client.Get("https://firewall-protected-url.com")
    if err != nil {
        fmt.Println(err)
        return
    }
    fmt.Println(resp.Status)
}

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