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Rare Earth Juejin Tech Community
Rare Earth Juejin Tech Community
Feb 5, 2026 · Frontend Development

Why Frontend Recording & Replay Matters: Master rrweb for Debugging and Analysis

This article explains why front‑end recording and replay are essential for diagnosing invisible bugs, introduces the open‑source rrweb tool and its core modules, compares it with video and screenshot methods, and provides step‑by‑step guidance for installing, configuring, recording, replaying, and optimizing rrweb in Vue 3 applications.

DebuggingVuefrontend
0 likes · 36 min read
Why Frontend Recording & Replay Matters: Master rrweb for Debugging and Analysis
Qunar Tech Salon
Qunar Tech Salon
Jun 2, 2023 · Backend Development

Traffic Recording and Replay at Qunar: Architecture, Practice, and Impact on Interface Automation Testing and Full‑Link Stress Testing

This article describes Qunar's use of traffic recording and replay technology for fault isolation, performance optimization, and upgrade migration, detailing the evolution of their Java‑based agents, the end‑to‑end testing workflow, full‑link stress‑test integration, and the measurable business and performance outcomes.

Automated TestingJava AgentQunar
0 likes · 15 min read
Traffic Recording and Replay at Qunar: Architecture, Practice, and Impact on Interface Automation Testing and Full‑Link Stress Testing
vivo Internet Technology
vivo Internet Technology
Apr 5, 2023 · Backend Development

Moonbox: An Open‑Source Flow Recording and Replay Platform for Automated Testing

Moonbox is an open‑source, JVM‑Sandbox‑based platform that records and replays traffic to generate automated regression tests, offering visual management, rich plugins, multiple deployment options, high performance and safety features, and aims to simplify testing for developers while fostering community contributions.

Automated TestingBackendjvm-sandbox
0 likes · 11 min read
Moonbox: An Open‑Source Flow Recording and Replay Platform for Automated Testing
Top Architect
Top Architect
Dec 30, 2020 · Backend Development

Using Kafka as a Storage System for Twitter’s Account Activity Replay API

The article explains how Twitter built the Account Activity Replay API by repurposing Kafka as a storage layer, detailing the system’s architecture, partitioning strategy, request handling, deduplication, and performance optimizations to provide reliable event recovery for developers.

InfrastructureKafkaTwitter
0 likes · 8 min read
Using Kafka as a Storage System for Twitter’s Account Activity Replay API
Xianyu Technology
Xianyu Technology
Feb 15, 2019 · Mobile Development

Flutter UI Gesture Recording and Replay Technique

The article presents a full system for capturing and replaying Flutter UI gestures, detailing how raw pointer data is processed, how gesture recognizers compete, how recordings wrap callbacks and generate synthetic touch packets, and how a timer‑driven replay reproduces user interactions for debugging.

FlutterTouchEventgesture
0 likes · 13 min read
Flutter UI Gesture Recording and Replay Technique
Meituan Technology Team
Meituan Technology Team
Jul 16, 2015 · Mobile Development

Understanding RACSignal Subscription, Multicast, and Replay in ReactiveCocoa

The article breaks down RACSignal’s three‑step subscription flow, then explains how multicast and replay operators—built on RACSubject and RACReplaySubject—share a single source, buffer values, and ensure side‑effects like network requests execute only once regardless of how many subscribers attach.

Objective‑CRACSignalReactiveCocoa
0 likes · 18 min read
Understanding RACSignal Subscription, Multicast, and Replay in ReactiveCocoa