1. Technical Foundations and Overview Q: What is HTTP? A: HTTP is a standard TCP for requests and responses between client and server. It is actually built on top of TCP. When we open the Baidu webpage, it looks like this: https://www.baidu.com The extra ‘S’ actually stands for TLS/SSL. We won’t explain that here, so … Read more
✦ ✦ ✦ ✦ ✦ ✦ ✦ ✦ As a programmer who frequently interacts with the web, understanding these protocols is essential. This article will introduce the differences and basic concepts of these protocols. It may not be limited to frontend knowledge but also includes some operational and protocol-related knowledge, hoping to provide readers with … Read more
🌐 Complete Guide to Network Protocols: In-Depth Conversations from HTTP Long and Short Connections to TCP-UDP This article adopts a conversational format, through the Q&A of Xiao Li and Xiao Wang, to explain core concepts such as network protocols and long/short connections in a simple and accessible manner, helping readers establish a complete knowledge system … Read more
Click to follow our public account The HTTP error code 403 corresponds to the HTTP status “Forbidden”. This indicates that the server has understood the client’s request but refuses to fulfill it. The server explicitly prohibits the client from accessing the requested resource, usually not due to an error in the client’s request (unlike a … Read more
In-Depth Analysis of HTTP Short and Long Connections In today’s rapidly developing internet technology, the HTTP protocol serves as the foundation for network communication, and the choice of connection method has a crucial impact on website performance and user experience. This article will explore the differences, advantages, disadvantages, and application scenarios of HTTP short and … Read more
From HTTP 1.0 to HTTP/2: The Evolution of Internet Protocols (Part 1) 1. Introduction: Why is HTTP the “Universal Language” of the Internet? When you open the Taobao homepage, there may be over 50 instances of “client-server” communication happening simultaneously in the background. The rules governing these communications are defined by the HTTP protocol. From … Read more
In a previous article, we discussed the registration of application users. Today, we will use the HTTP step in Power Automate to obtain a token based on the application user information for querying D365 OData WebAPI data.Adding Application User in D365Create a new instant cloud flow and select the manual trigger flow.Add [New Step]Select the … Read more
HTTP Identification Control HTTPS Identification Control Custom Identification Control Background: During work hoursIT cannot access video websites Background Analysis:HTTP message, which field identifies the URL? Blocking HTTP websites, should the three-way handshake be allowed first? HTTP Identification Working Principle: HTTP website identification, after the terminal device resolves the domain name through DNS, completes the three-way … Read more
HTTP (Hypertext Transfer Protocol) is the foundation protocol for data communication on the World Wide Web (WWW) and is one of the most widely used protocols in modern internet applications. 1. Overview of HTTP 1.1 Basic Concepts Definition An application layer protocol based on the client-server model Function Specifies how clients and servers request and … Read more
Introduction <span><span>HttpClient</span></span> is a modern <span><span>API</span></span> in <span><span>.NET</span></span> used for sending <span><span>HTTP</span></span> requests and receiving <span><span>HTTP</span></span> responses, replacing the outdated <span><span>WebClient</span></span> and <span><span>HttpWebRequest</span></span> classes. <span><span>HttpClient</span></span> is provided in <span><span>.NET Framework 4.5</span></span> + and <span><span>.NET Core/.NET 5+</span></span>, based on a message handling pipeline (<span><span>message handler pipeline</span></span>), and is a modern <span><span>HTTP</span></span> client library. Compared to earlier … Read more