This guide explains how to use Locust to add query parameters to GET requests and send JSON or form‑encoded data in POST requests, including combined examples with custom headers for comprehensive HTTP request configuration.
This article introduces UniHttp, a declarative Java HTTP client framework that simplifies third‑party API integration by using annotations to generate request metadata, supports various parameter types, lifecycle hooks, custom processors, and provides practical enterprise‑level examples with full code snippets.
This guide explains how to integrate multiple custom clients in Locust, covering the definition of client classes for HTTP and WebSocket, their use within a user class, configuration of run parameters, and important considerations such as resource management and exception handling.
This article explains the PHP get_headers() function, its syntax and parameters, provides code examples for fetching and printing HTTP response headers, and discusses common use cases such as checking remote file existence, obtaining file metadata, and supporting web crawlers.
This article explores practical HTTP retry solutions for offline store applications, covering a basic loop retry, the built‑in retry mechanism of Apache HttpClient with custom handlers, and an asynchronous retry approach using message queues to achieve higher reliability and eventual consistency.
This article explains how the PHP curl_multi_getcontent() function retrieves the response of each cURL handle created with curl_multi_init() and executed via curl_multi_exec(), provides a complete example with code, and highlights important usage considerations for concurrent API requests.
This article explains the complete network communication process for HTTP, covering the OSI and TCP/IP models, DNS lookup, protocol stack handling, TCP handshakes, IP routing, MAC addressing, switches, routers, Ethernet transmission, and server-side packet de‑encapsulation.
This guide explains the fundamentals of CORS, walks through typical misconfigurations such as HeaderDisallowedByPreflightResponse, Nginx header ordering, and Origin‑Credentials conflicts, and provides complete Nginx examples to reliably enable cross‑origin requests.
This guide explains PHP’s cURL extension, covering installation, core concepts, step‑by‑step request setup, and practical examples for GET, POST, file download, redirect handling, error logging, and parallel requests, helping backend developers efficiently interact with external APIs and services.
This article explains the PHP curl_init() function, covering its syntax, optional URL parameter, return values, and provides a complete example demonstrating initialization, option setting, execution, error handling, and response processing for HTTP API requests.
This tutorial walks you through installing the Python requests library, using GET, POST, and PUT methods, handling query parameters, setting custom headers to bypass anti‑scraping measures, and saving both HTML content and images to local files, complete with runnable code examples.
This article provides a detailed tutorial on cURL, covering its basic usage, key options for HTTP and HTTPS requests, file upload and download techniques, and common troubleshooting tips to help developers efficiently interact with web services from the command line.
This article explains why traditional HTTP cannot let servers initiate messages, compares periodic HTTP polling and long polling as workarounds, and introduces the full‑duplex WebSocket protocol—including its handshake, frame format, and typical use cases such as web games and real‑time chat.
A high‑concurrency data collection service quickly saturated a 100 Mbps uplink because each GET request incurred a 1.27 KB TLS handshake, prompting a switch to plain HTTP and keep‑alive to cut bandwidth usage by 70% and lower server load.
This article introduces UniHttp, a declarative HTTP client framework that simplifies third‑party API integration in Java backend applications by replacing manual HttpClient/OkHttp code with annotated interfaces, provides quick‑start instructions, detailed annotation usage, lifecycle hooks, custom channel integration examples, and configuration tips.
This article explains how TCP, the reliable transport‑layer protocol, differs from HTTP, the application‑layer web protocol in terms of purpose, connection handling, and data formatting, helping readers understand why TCP underpins HTTP while each serves distinct roles on the Internet.
This article provides a comprehensive overview of common HTTP request and response headers, explaining their purposes, typical usage, and example syntax, helping developers prepare for interviews and deepen their understanding of web communication fundamentals.
A high‑concurrency service quickly maxed out a 100 Mbps uplink because each HTTPS GET request incurred a 1.68 KB payload dominated by a 1.27 KB TLS handshake, prompting a switch to plain HTTP or keep‑alive to dramatically cut bandwidth and CPU usage.
The article explains the newly proposed HTTP QUERY method, detailing its definition, idempotent and safe characteristics, usage scenarios for large payloads, caching behavior, the Accept-Query response header, and provides multiple concrete request‑response examples with code snippets.
UniHttp is a declarative HTTP interface integration framework that simplifies third‑party API calls in Java projects by generating proxy beans, supporting rich annotations for request parameters, lifecycle hooks, custom processors, and seamless Spring integration, thereby improving code cohesion and maintainability.
This article explains the fundamental differences between HTTP and HTTPS, covering security vulnerabilities, authentication mechanisms, encryption methods, default ports, and performance impacts, helping developers understand why HTTPS is essential for protecting sensitive data on the web.
Alova.JS is a lightweight HTTP request library that supports multiple adapters, cross‑framework usage, and TypeScript, offering a smaller bundle size (≈30% of axios), a concise API, and high‑performance request strategies, making it a compelling replacement for axios in modern web projects.
After discovering that a simple GET request consumes 1.68 KB due to the TLS handshake, the article explains the handshake’s components, calculates the resulting bandwidth demand, and demonstrates how switching to HTTP or enabling Keep‑Alive can dramatically reduce traffic and server load in high‑concurrency scenarios.
This article examines the shortcomings of Volcengine's Python TTS SDK, proposes a cleaner design using request interceptors or Auth objects, demonstrates refactored code examples with the Tetos library, and explains how to integrate signing logic into standard HTTP clients for more maintainable backend development.
Spring WebClient, the reactive replacement for the deprecated RestTemplate in Spring 5+, offers non‑blocking I/O, functional style, streaming support, and improved error handling; this article explains its benefits, demonstrates synchronous and asynchronous request patterns, timeout configuration, and comprehensive error processing with code examples.
This article explains why RestTemplate is deprecated in Spring Framework 5+, outlines the advantages of the reactive WebClient such as non‑blocking I/O, functional style, streaming and improved error handling, and provides complete Java code examples for creating, configuring, and using WebClient synchronously and asynchronously, including timeout and error management.
A high‑concurrency data‑collection service quickly filled a 100 Mbps uplink because each GET request incurred a 1.68 KB TLS handshake, consuming over 260 Mbps, but switching to plain HTTP or using keep‑alive can dramatically cut bandwidth and server load.
This article reviews the evolution of HTTP from its early versions to HTTP/3, explains the QUIC protocol and its advantages over TCP, and discusses connection establishment, migration, head‑of‑line blocking, congestion control, and flow control mechanisms that improve modern web performance.
This article explains the PHP get_headers() function, its syntax, parameters, and usage examples, demonstrates how to retrieve and display HTTP response headers from a URL, and discusses common application scenarios such as checking remote file existence, obtaining file metadata, and supporting web crawling or monitoring.
This article explains the fundamentals of the browser same‑origin policy, details how CORS and preflight requests work, and discusses related security considerations, while also promoting a ChatGPT community and related services for developers.
This article introduces UniHttp, a declarative Java HTTP client framework that lets developers define third‑party HTTP APIs as annotated interfaces, provides quick‑start instructions, detailed annotation usage, lifecycle hooks, custom client configuration, and an enterprise integration example with full code snippets.
The article explains why network protocols use layered design, details TCP's reliability and congestion‑control mechanisms, outlines HTTP status‑code categories, reviews MySQL lock scopes from global to row‑level, provides a C++ breadth‑first binary‑tree traversal example, and describes a three‑step weighing puzzle to find an odd ball.
The article explains how to use PHP’s curl_multi_select() function to wait for active cURL transfers in a multi‑handle scenario, detailing its definition, parameters, behavior, and providing a complete example that demonstrates efficient concurrent HTTP requests handling.
This article demonstrates how to use Python's asyncio library together with the aiohttp package to perform asynchronous HTTP requests, covering installation, concurrent request execution, GET and POST examples, error handling, timeouts, SSL verification, and proxy usage, with complete code snippets.
Cloudflare replaced NGINX with its self‑developed Rust proxy Pingora, detailing why the legacy architecture fell short, the design decisions behind building a new internal proxy, and how Pingora delivers significantly higher performance, efficiency, and security for trillions of daily requests.
This article examines the design goals, typical use cases, and performance differences between the browser‑oriented fetch API and the high‑throughput Undici library for Node.js, including a simple benchmark that shows Undici completing the same workload roughly twice as fast as fetch.
The article explains the HTTP QUERY method, a safe and idempotent request type that carries payloads in the request body, addressing GET's URL length limits and POST's lack of idempotency, and provides detailed usage examples and header specifications.
This article explains the two ways to call Axios—using a configuration object or shortcut methods—then walks through building a minimal Axios clone, detailing its constructor, prototype methods, and the clever instance creation that lets the library behave both as a function and an object.
This article explains the fundamental differences between long-lived and short-lived network connections, covering their operation processes, resource consumption, typical use cases, and impact on stability and fault tolerance, helping developers choose the right approach for their applications.
This article explains the fundamentals of the same‑origin policy, the security risks it mitigates, and how CORS and preflight requests work in browsers, illustrating the concepts with diagrams, header details, and a complete request flow chart.
This article explains how the PHP curl_multi_getcontent() function retrieves the response content of each handle in a multi‑cURL session, demonstrates its usage with a complete example, and highlights important considerations for concurrent API requests.
This tutorial demonstrates how to build a reusable Python HTTP client by defining a base HttpRequest class with standard methods, extending it with a RestApiRequest subclass that adds authentication handling, and provides a complete code example showing GET and POST requests.
This article explains the purpose and syntax of the PHP curl_close() function, demonstrates how to use it with curl_init() and curl_setopt() in a complete example, and highlights the resource, performance, and memory benefits of closing cURL sessions promptly.
This article explains why Spring Cloud uses HTTP instead of RPC for remote calls, compares HTTP and RPC protocols, describes how to implement a simple HTTP server in Java, outlines the principles of RESTful architecture, and discusses the advantages, disadvantages, and future trends of both approaches.
This article traces the evolution of HTTP from its 1991 origins through HTTP/2 and HTTP/3, explains how QUIC leverages UDP to reduce latency, and details QUIC's connection establishment, migration, head‑of‑line blocking mitigation, congestion control, and flow‑control mechanisms.
This article provides a comprehensive guide to using Spring Boot’s @RequestMapping annotation, covering path definitions, HTTP methods, headers, produces/consumes, path variables, parameters, fallback handling, and advanced options, with practical curl commands and code snippets for each scenario.
This article explains why Spring Cloud prefers HTTP over RPC for remote calls, covering the embedded Tomcat architecture, JSON data exchange, the fundamentals of RPC over TCP, and compares their advantages, disadvantages, and suitability for microservice development.
The Cool Request plugin for IntelliJ IDEA now adds a Trace feature that automatically measures method execution time, visualizes call counts, highlights slow calls, supports Mybatis tracing, and lets you script environment variables, making HTTP debugging and performance analysis in Java projects far easier.
This article explains the fundamentals of the HTTP protocol, illustrates its vulnerability to man‑in‑the‑middle attacks, demonstrates why plain HTTP is insecure, and shows how HTTPS, TLS/SSL, asymmetric encryption, and certificate authorities together protect communications from interception and tampering.
The article compares Spring Cloud’s HTTP‑based, Tomcat‑served JSON services with TCP‑based RPC, highlighting HTTP’s cross‑platform flexibility and ease of use versus RPC’s faster, binary‑serialized calls that mimic local methods, and advises choosing HTTP for microservice, loosely‑coupled architectures despite RPC’s speed advantage.
The article explains how TLS handshakes significantly increase request size and upstream bandwidth consumption in high‑concurrency services, demonstrates the bandwidth calculations, and proposes using plain HTTP or Keep‑Alive connections to reduce overhead and server load.
This article explains why Spring Cloud prefers HTTP over RPC for remote calls, detailing the underlying Tomcat-based web service, the differences between HTTP and RPC protocols, their advantages and disadvantages, and provides guidance on choosing the appropriate approach for microservice architectures.
This article explains the fundamentals of the Same-Origin Policy, its security implications for DOM, data, and network access, and provides a detailed walkthrough of CORS, including simple requests, preflight requests, and handling of credentials to protect web applications.
Learn step-by-step how to activate gzip compression in Nginx, configure compression level, buffer size, minimum file size, and proxy settings, and understand the impact of each directive on bandwidth reduction and page load speed for both static and dynamic content.
The article shares a graduate's interview experience and provides a comprehensive technical guide covering HTTP/1.x vs HTTP/2 differences, Java socket and HTTP server code, OS I/O buffering vs direct I/O, database concurrency control, Bloom filter principles, Java reflection, annotation usage, and synchronized locking semantics.
This article traces the evolution of HTTP from its 1991 inception through HTTP/1.1, HTTP/2, and HTTP/3, explains the QUIC protocol’s design and advantages, and details connection establishment, congestion control, flow control, and head‑of‑line blocking mitigation techniques used in modern web transport.
This article explains in detail how an HTTP request moves from a user’s device through Wi‑Fi, routers, modems, ISP NAT devices, and finally reaches the application server, illustrating each OSI layer and the transformations that occur along the way.
This article traces the evolution from HTTP/1.1 to HTTP/3, explains how QUIC built on UDP to reduce connection latency, avoid head‑of‑line blocking, support seamless connection migration, and introduce advanced congestion and flow‑control mechanisms that give HTTP/3 a performance edge over its predecessors.
This article explains the complete browser navigation flow from URL entry to page rendering and provides practical optimization strategies for DNS resolution, HTTP protocols, CDN usage, and front‑end resources such as HTML, CSS, JavaScript, images, and fonts to improve performance and user experience.
This article explains the complete browser navigation process—from URL entry, DNS resolution, TCP and HTTP communication, to resource loading and page rendering—and presents practical optimization techniques such as DNS prefetch, HTTP/2, CDN usage, and HTML, CSS, JavaScript, and image improvements to boost frontend performance.
This article explains the PHP header() function, its syntax, parameters, and common use cases such as page redirection, setting HTTP response headers, status codes, preventing caching, and enabling file downloads, with clear code examples for each scenario.
Learn how to use Go's net package for low‑level socket programming—including TCP, UDP, and ICMP connections with the Dial function—and build HTTP clients with net/http, covering basic requests, POST forms, custom headers, and practical code examples.
This article explains the origins of REST, why modern developers must follow RESTful conventions, and provides a step‑by‑step guide—including domain naming, versioning, endpoint design, HTTP verbs, filtering, status codes, error handling, hypermedia links, and data formats—illustrated with concrete code snippets.
This article explains the fundamentals of the HTTP protocol, demonstrates how man‑in‑the‑middle attacks exploit its plaintext nature, discusses symmetric and asymmetric encryption attempts to mitigate these risks, and describes how HTTPS (TLS) and the CA trust model provide robust protection against such attacks.
A RESTful API is an HTTP‑based design that treats each resource as a URI, uses standard verbs (GET, POST, PUT, PATCH, DELETE) for CRUD operations, returns appropriate status codes, supports content negotiation, versioned secure endpoints, clear noun‑based naming, pagination, filtering, HATEOAS links, and avoids embedding actions or verbs in URLs.
This article examines the need for reliable HTTP retries in offline store applications, evaluates simple loop retries, explores Apache HttpClient's built‑in retry mechanism, and proposes a hybrid solution that combines customized HttpClient retry handling with asynchronous message‑queue retries to achieve high availability and eventual consistency.
This guide explains why random User-Agent headers improve API automation testing, introduces the Python fake_useragent library, shows how to install it, and provides comprehensive example code for generating, validating, and persisting random User-Agent strings.
This article explains the PHP curl_init() function, covering its syntax, optional URL parameter, return values, and provides a complete example that demonstrates initializing a cURL session, setting options, executing a request, handling errors, and processing JSON responses.
This article explains the PHP curl_setopt() function, covering its syntax, parameters, return value, and provides a complete example of sending a GET request with cURL, including detailed explanations of each option used.
This article introduces lua-resty-http, a non‑blocking Lua library for OpenResty, outlines its key features, typical use cases, installation steps, and provides both basic and advanced code examples—including configuration, Lua scripts, and caching strategies—to help developers efficiently perform HTTP requests within Nginx.
This tutorial explains how to construct XML data in Python, set the appropriate Content-Type header, send it via a POST request using the requests library, and parse the XML response, providing complete example code for developers working with web APIs.
Understanding the SameSite attribute lets developers control cookie transmission across sites, balancing security and usability by choosing Strict for maximum protection, Lax for a user‑friendly compromise, or None (with Secure) for cross‑site scenarios, with practical code examples and usage guidelines.
This article explains the mechanisms of frontend caching, covering HTTP cache headers such as Expires and Cache‑Control, browser memory and disk caches, negotiation strategies with ETag and Last‑Modified, and practical NestJS examples to improve web performance.
This article explains the evolution of HTTP from 1.1 to HTTP/3, introduces the QUIC protocol and its packet‑based design, and details how QUIC reduces RTT, solves head‑of‑line blocking, improves congestion and flow control, and supports connection migration.
This article explains the fundamentals of the HTTP protocol, illustrates its susceptibility to man‑in‑the‑middle attacks, discusses symmetric and asymmetric encryption attempts, and then details how HTTPS (TLS) and the CA trust model protect data transmission from interception and tampering.
This article demonstrates how to perform GET and POST requests, maintain sessions, handle retries, pass query parameters, validate responses with JSON Schema, upload files, run automated tests, and improve performance with multithreading and streaming downloads using Python's Requests library.
This article explains Go's socket programming workflow, detailing the traditional steps of creating, binding, listening, and communicating over sockets, then shows how net.Dial simplifies connections for TCP, UDP, and ICMP, and demonstrates practical HTTP client usage with code examples.
This article explains the HTTP QUERY method as a safe, idempotent request type that carries payloads like POST but enables caching and automatic retries, detailing its semantics, caching behavior, Accept-Query header, and providing practical code examples.
This article demystifies the confusion between HTTP methods POST, PUT, and PATCH by explaining their distinct purposes, showing practical code examples, and highlighting when each should be used in RESTful API design.
This article explains how the PHP curl_multi_add_handle() function can add multiple cURL handles to a single multi‑handle session, provides its syntax and parameters, and includes a complete example demonstrating initialization, adding handles, executing requests, retrieving responses, and cleaning up.
This article explains why the Spring MVC @RequestBody annotation cannot be applied to multiple parameters in a single handler method, detailing the internal request‑body reading process, the resulting HttpMessageNotReadableException, and how to correctly handle multiple data parts using a single DTO.
This tutorial walks through creating a full‑stack project that uses json-server to expose a RESTful API, demonstrates CRUD operations via Postman, and shows how to interact with the API from a simple frontend using JavaScript fetch calls.
This article explains the HTTP QUERY method—a safe, idempotent request type that carries query payloads in the body, contrasts it with GET and POST, details caching behavior, the Accept-Query header, and provides practical examples of direct and indirect responses.
This article explains the evolution from HTTP/1.1 to HTTP/3, detailing QUIC's UDP‑based design, its impact on connection establishment, migration, head‑of‑line blocking, multiplexing, congestion control, forward error correction, and flow‑control mechanisms for modern web services.
This article introduces the Go library grequests—a clone of Python's requests—demonstrates its installation, compares its API with net/http, and provides concise examples for GET, POST, query strings, basic authentication, and file upload/download, highlighting its simplicity and advantages for HTTP client development.
This article traces the development of the HTTP protocol from its simple single‑line origins in HTTP/0.9 through the extensible HTTP/1.0 and standardized HTTP/1.1 versions, to the performance‑focused HTTP/2 and the QUIC‑based HTTP/3, highlighting key features, limitations, and architectural changes.
This article explains the purpose and classification of HTTP status codes—from informational 1xx to server error 5xx—while also providing an in‑depth walkthrough of the OSI seven‑layer model and its TCP/IP counterpart, detailing each layer’s role, protocols, and typical devices.
This guide explains how to replace slow synchronous HTTP calls with Guzzle's asynchronous requests in PHP, showing code examples, performance measurements, and practical tips for installing and using promises to achieve faster concurrent API calls.
The article introduces the Python mechanize library, explains its capabilities for automating web interactions such as form submission, link navigation, cookie management, and redirects, provides basic usage examples, detailed sample code for various testing scenarios, and notes its limitations compared to Selenium.
This article demonstrates how to apply Monkey Patching in Go using the gomonkey library to unit‑test a simple HTTP service, covering code examples, dependency analysis, patch creation, test execution parameters, and practical considerations such as inlining and concurrency limitations.
This article explains the concept of idempotence, why it matters in distributed systems, how to handle timeout scenarios, design principles using globally unique IDs, and eight practical implementation patterns—including database tricks, token schemes, locking, and HTTP method considerations—to build robust, repeat‑safe APIs.
This article explains the fundamentals of HTTP caching, including how it works, the different cache types, key cache-control directives, and the testing scenarios where testers must be aware of cache behavior to ensure performance, data consistency, and security.
This article explains how to write reliable unit tests for Go HTTP applications by isolating external dependencies, covering server‑side handlers, client‑side monitoring, and using tools such as net/http/httptest, testify, and gock to create test doubles and mock HTTP services.
This article explains how to obtain cookies from an initial HTTP response using Python's requests library, reuse them in subsequent requests, and handle related security considerations such as CSRF tokens and robots.txt compliance, providing a complete code example and step‑by‑step guidance.
Bilibili created a unified front‑end request library using a Koa‑style middleware “onion” architecture—ConfigCtrl, AssembleCtrl, and RequestCtrl—to standardize error handling, cut code redundancy, improve performance, and provide consistent, extensible API calls across SSR/CSR, Vue2/Vue3, and in‑app H5 environments.
The article walks through every step from typing a URL to final page rendering, detailing URL parsing, DNS lookup, TCP three‑way handshake and termination, HTTP request/response structure, congestion and flow control mechanisms, and the browser’s DOM, CSS, layout and painting processes.
This article explains the fundamentals of TCP, why raw TCP communication faces issues like message boundary ambiguity, how HTTP and RPC are built on TCP as application‑layer protocols, and compares their use cases, performance, and evolution to help developers choose the right protocol for their systems.
This article explains Gin's Bind() method, detailing how it detects request content types, selects appropriate binders for JSON, form, and XML data, performs parsing and validation, handles errors, and provides a practical code example for Go web developers.
This guide walks you through installing the wrk load‑testing tool on Unix‑like systems, explains its core command‑line options, shows how to interpret benchmark results, and demonstrates advanced customization using Lua scripts for POST requests, dynamic parameters, authentication, and HTTP pipelining.
This article explains why Spring MVC cannot parse multiple @RequestBody annotations on a single handler method, analyzes the internal I/O stream closure that causes the failure, and provides a practical solution using a request‑body caching wrapper and a servlet filter to allow repeated reads of the request payload.
