2.10 Session 2.10.1 Definition of Session A Session is a series of requests and operations processed by the program during the interaction between the user and the server, where the program maintains state information about user activities. For example, this includes the user’s identity, preferences, and current session data. Typically, a session begins … Read more
2.8 Gin Middleware 2.8.1 What is Gin Middleware In Gin, middleware is a way to add common functionality to HTTP handlers. In the context of Gin, middleware refers to a set of functions or handlers that are executed during the HTTP request and response lifecycle. Gin middleware can be used for various purposes, … Read more
1. Overview of the Scrapy Framework What is Scrapy? Scrapy is an open-source web crawling framework written in Python, specifically designed for quickly and efficiently scraping data from websites. It provides a complete solution for spider development, including request scheduling, data extraction, and data storage functionalities. Core Advantages of Scrapy High Performance: Asynchronous processing, supports … Read more
2.3 Using Middleware Gin supports the use of middleware for a specific route or route group, as shown in the example code below: package main import ( "log" "time" "github.com/gin-gonic/gin" ) // Custom Middleware func Logger() gin.HandlerFunc { return func(ctx *gin.Context) { t := time.Now() // Set variable ctx.Set("Name", "Surpass") // Before request … Read more
Tower-HTTP is a powerful HTTP middleware library in the Rust ecosystem, built on top of the Tower framework. It focuses on providing HTTP-specific tools and middleware to help developers easily handle common web development needs such as CORS, response compression, request tracing, and header validation. With a modular layer design, it supports a highly composable … Read more
Recently, I have been busy with a requirement to downsize multiple cloud hosts. This operation covers four major middleware components: Redis, RocketMQ, RabbitMQ, and Nginx, as well as nearly 50 Tomcat services, involving critical business sectors such as orders, payments, and file storage. Due to the complexity of this environment, any oversight could affect service … Read more
Understanding Rust What is Rust Rust is a comprehensive language that integrates the advantages of other programming languages. It is a systems-level language but also possesses features of high-level languages, allowing for easy interaction with other languages. It can run across systems and platforms, including browsers and embedded environments. Rust has the following notable features: … Read more
In daily development, we often need to write HTTP-related code, but testing this code can be quite a headache. Traditional testing methods require starting a real server, configuring ports, and cleaning up resources after testing, making the process cumbersome and error-prone. The <span>httptest</span> package in the Go standard library provides us with an elegant solution. … Read more
For multithreading collaborative scenarios, design ageneral-purpose multithreading middleware that supports thread state management (initialization → startup → running → waiting → stopping), dependency awareness, ordered switching, and error handling. Below is the complete implementation plan. The design goals of the middleware — High versatility: Adapt to various types of threads, reducing expansion costs Versatility: Supports … Read more
Unified error handling is implemented through middleware and the ErrorResponse structure, capturing panics and standardizing responses. The middleware uses defer and recover to prevent crashes, and the writeError function simplifies error returns, ensuring consistent and maintainable API error responses when integrated with routing. In Go language development for web services, unified error handling is key … Read more