How to use Golang to request cookies
In network programming, requesting cookies is a very important function, especially when you need to request a web page from a web server, this function becomes very useful. Now when writing programs in Golang, requesting cookies is also one of the essential operations. In this article, we will introduce how to use Golang to request cookies.
- What is a cookie
First of all, we need to know what a cookie is. A cookie is a small data file stored on the user's computer. It can pass data between web server and client. When we request a website, the website sends a cookie containing some information to our browser, which the browser stores locally and sends back to the server on subsequent requests.
- Request cookie in Golang
In Golang, we can use the Client
structure in the net/http
package The body sends an HTTP request. An HTTP request can be created by using the http.NewRequest()
function. By setting the "Cookie" field in the request header, we can send cookie information.
The following is a sample code for requesting cookies using Golang:
package main import ( "fmt" "net/http" ) func main() { // 创建一个HTTP客户端 client := &http.Client{} // 创建一个GET请求 req, err := http.NewRequest("GET", "http://example.com", nil) if err != nil { fmt.Println(err) return } // 设置请求头中的Cookie信息 cookie := &http.Cookie{Name: "name", Value: "value"} req.AddCookie(cookie) // 发送请求 resp, err := client.Do(req) if err != nil { fmt.Println(err) return } // 打印响应 fmt.Println(resp) }
In the above sample code, we created an HTTP client and used http.NewRequest()
The function creates a GET request. Then, we use the req.AddCookie()
function to set the Cookie information in the request header. Finally, we use the client.Do()
function to send the request and print the returned response result.
- Request multiple cookies
Some websites may store multiple pieces of information in one cookie. In this case, we need to set multiple cookie information in the request header.
The following is a Golang sample code that sets multiple cookie information in the request header:
package main import ( "fmt" "net/http" ) func main() { // 创建一个HTTP客户端 client := &http.Client{} // 创建一个GET请求 req, err := http.NewRequest("GET", "http://example.com", nil) if err != nil { fmt.Println(err) return } // 设置请求头中的多个Cookie信息 cookies := []*http.Cookie{ &http.Cookie{Name: "name1", Value: "value1"}, &http.Cookie{Name: "name2", Value: "value2"}, } for _, c := range cookies { req.AddCookie(c) } // 发送请求 resp, err := client.Do(req) if err != nil { fmt.Println(err) return } // 打印响应 fmt.Println(resp) }
In the above sample code, we use req.AddCookie()
The function sets two cookie information in the request header, then sends the request and prints the returned response result.
- Conclusion
In this article, we introduced how to use Golang to request cookies. By setting the "Cookie" field in the request header, we can send cookie information to the web server to achieve more efficient communication. By studying the content of this article, you can master the skills of using Golang to request cookies and apply them to your actual projects.
The above is the detailed content of How to use Golang to request cookies. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



OpenSSL, as an open source library widely used in secure communications, provides encryption algorithms, keys and certificate management functions. However, there are some known security vulnerabilities in its historical version, some of which are extremely harmful. This article will focus on common vulnerabilities and response measures for OpenSSL in Debian systems. DebianOpenSSL known vulnerabilities: OpenSSL has experienced several serious vulnerabilities, such as: Heart Bleeding Vulnerability (CVE-2014-0160): This vulnerability affects OpenSSL 1.0.1 to 1.0.1f and 1.0.2 to 1.0.2 beta versions. An attacker can use this vulnerability to unauthorized read sensitive information on the server, including encryption keys, etc.

The article explains how to use the pprof tool for analyzing Go performance, including enabling profiling, collecting data, and identifying common bottlenecks like CPU and memory issues.Character count: 159

The article discusses writing unit tests in Go, covering best practices, mocking techniques, and tools for efficient test management.

Queue threading problem in Go crawler Colly explores the problem of using the Colly crawler library in Go language, developers often encounter problems with threads and request queues. �...

The library used for floating-point number operation in Go language introduces how to ensure the accuracy is...

The article discusses the go fmt command in Go programming, which formats code to adhere to official style guidelines. It highlights the importance of go fmt for maintaining code consistency, readability, and reducing style debates. Best practices fo

This article introduces a variety of methods and tools to monitor PostgreSQL databases under the Debian system, helping you to fully grasp database performance monitoring. 1. Use PostgreSQL to build-in monitoring view PostgreSQL itself provides multiple views for monitoring database activities: pg_stat_activity: displays database activities in real time, including connections, queries, transactions and other information. pg_stat_replication: Monitors replication status, especially suitable for stream replication clusters. pg_stat_database: Provides database statistics, such as database size, transaction commit/rollback times and other key indicators. 2. Use log analysis tool pgBadg

Backend learning path: The exploration journey from front-end to back-end As a back-end beginner who transforms from front-end development, you already have the foundation of nodejs,...
