How to Properly Configure HTTP Proxy Authentication in Go?

HTTP Proxy with Authentication in Go

Setting up a proxy with authentication for HTTP requests can be challenging, especially when incorporating it into existing third-party code. This article delves into a specific issue encountered while attempting to add proxy authentication to an existing codebase.

Problem Statement:

The code snippet provided establishes an HTTP proxy without authentication using a transport object with the ProxyURL function. However, adding the Proxy-Authorization header to the response object after the POST request fails to authenticate the proxy.

Solution:

To resolve this issue, directly specify the proxy URL with authentication credentials in the transport object.

// Create an HTTP client with proxy authentication
client := &http.Client{
  Transport: &http.Transport{
    Proxy: http.ProxyURL(&url.URL{
      Scheme: "http",
      User:   url.UserPassword("username", "password"),
      Host:   "proxy.com:8080",
    }),
  },
}

// Use the client to make requests with proxy authentication
resp, err := client.PostForm(method, params)

Alternatively, the proxy URL can also be parsed directly.

// Parse the proxy URL
proxyURL, _ := url.Parse("http://username:password@proxy.com:8080")

// Create an HTTP client with proxy authentication
client := &http.Client{
  Transport: &http.Transport{
    Proxy: http.ProxyURL(proxyURL),
  },
}

// Use the client to make requests with proxy authentication
resp, err := client.PostForm(method, params)

This approach ensures that the proxy credentials are incorporated into the transport object, allowing the HTTP POST request to use the authenticated proxy.

The above is the detailed content of How to Properly Configure HTTP Proxy Authentication in Go?. For more information, please follow other related articles on the PHP Chinese website!