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58 Tech

Official tech channel of 58, a platform for tech innovation, sharing, and communication.

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Recent Articles

Latest from 58 Tech

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58 Tech
58 Tech
May 10, 2022 · Backend Development

Understanding Distributed Locks: Java Native Locks, RedissonLock, RedLock, and WLock – Concepts, Algorithms, and Source Code Analysis

This article explains the need for distributed locks, compares Java native and JUC locks, details Redis‑based implementations such as RedissonLock and RedLock, introduces the WLock solution with WPaxos and RocksDB, and provides complete source‑code walkthroughs for lock acquisition and release.

Distributed LockJava concurrencyWLock
0 likes · 31 min read
Understanding Distributed Locks: Java Native Locks, RedissonLock, RedLock, and WLock – Concepts, Algorithms, and Source Code Analysis
58 Tech
58 Tech
May 10, 2022 · R&D Management

Recap of 58 Technology Salon: R&D Efficiency Measurement and Mobile Quality Assurance

The article summarizes the 28th 58 Technology Salon held on April 27, 2022, featuring presentations on R&D efficiency measurement and mobile quality assurance, including detailed Q&A sessions that discuss metrics, data handling, performance testing tools, and practical improvements for development and testing teams.

Performance TestingR&D metricsefficiency
0 likes · 6 min read
Recap of 58 Technology Salon: R&D Efficiency Measurement and Mobile Quality Assurance
58 Tech
58 Tech
May 5, 2022 · Big Data

Low-Code Real-Time Data Warehouse Construction System Using Flink

This article describes a low‑code, Flink‑based real‑time data‑warehouse construction system that abstracts the warehouse building process into ODS, DWD, DWS, and ADS layers, leverages a domain‑specific language and plugin engine to reduce development effort, and details its architecture, DSL design, plugin extensibility, dimension‑table completion, stream merging, aggregation, and storage strategies.

DSLFlinkReal-time Data Warehouse
0 likes · 11 min read
Low-Code Real-Time Data Warehouse Construction System Using Flink
58 Tech
58 Tech
Apr 28, 2022 · Information Security

Design and Implementation of the “Magic Butler” Zero‑Trust Security Management System

The article presents a comprehensive case study of the Magic Butler system—a zero‑trust security management solution developed by 58 Group’s TEG department—detailing its business drivers, design principles, architecture, key technical features, deployment scale, and future outlook for enterprise network security.

Endpoint Managementaccess controlenterprise security
0 likes · 14 min read
Design and Implementation of the “Magic Butler” Zero‑Trust Security Management System
58 Tech
58 Tech
Apr 26, 2022 · Information Security

Design and Architecture of a Full‑Chain Data Warehouse for Information Security

The article presents a comprehensive design of an end‑to‑end data warehouse for information‑security governance, detailing background motivations, multi‑layer data architecture, dimension modeling, bus‑matrix mapping, real‑time (lambda/kappa) processing, data‑dictionary integration, and future directions toward unified streaming‑batch solutions.

Data WarehouseInformation Securitydimension modeling
0 likes · 16 min read
Design and Architecture of a Full‑Chain Data Warehouse for Information Security
58 Tech
58 Tech
Apr 21, 2022 · Frontend Development

Interview with Li Yi on Building 58 Group’s Large Front‑End Technology Service System

In this interview, Li Yi, head of 58 Group’s Front‑End Technology Department, explains how the company built its large‑scale front‑end service system—including a Hybrid permission platform, a React Native hot‑update platform, and the Beidou monitoring system—while discussing cross‑platform frameworks, performance challenges, low‑code adoption, and advice for newcomers.

Cross‑platformFlutterMonitoring
0 likes · 11 min read
Interview with Li Yi on Building 58 Group’s Large Front‑End Technology Service System
58 Tech
58 Tech
Apr 12, 2022 · Mobile Development

Fair 2.0: Complete Integration and Usage Guide for Flutter Projects

This article provides a step‑by‑step tutorial on integrating the Fair 2.0 dynamic framework into Flutter applications, covering dependency setup, widget conversion, bundle generation, runtime loading, parameter passing, navigation, plugin bridging, performance evaluation, update strategies, security checks, and practical lessons learned from its deployment in the 58 拍客 app.

Hot UpdatePerformancemobile development
0 likes · 12 min read
Fair 2.0: Complete Integration and Usage Guide for Flutter Projects
58 Tech
58 Tech
Mar 29, 2022 · Big Data

Design and Implementation of the 58 Group Penalty Data Center

This article presents the design, architecture, and implementation of a unified penalty data center for 58 Group, detailing the challenges of heterogeneous data sources, the selection of Flink for real‑time ETL, the use of a DSL and LRU aggregation, and the adoption of MVEL for feature recognition to achieve standardized, high‑performance penalty data processing.

ETLFlinkPenalty System
0 likes · 13 min read
Design and Implementation of the 58 Group Penalty Data Center
58 Tech
58 Tech
Mar 22, 2022 · Game Development

Swift Native Mini‑Game Development in the Same‑City App: Architecture, Mixed‑Language Integration, and Performance Optimizations

This article describes how the Same‑City team migrated H5 mini‑games to a native Swift/SpriteKit solution, detailing the mixed Objective‑C/Swift environment, core game architecture, use of Swift functional and generic features, and the resulting improvements in package size, startup time, FPS, and memory consumption.

Functional ProgrammingGenericsMixed Language
0 likes · 27 min read
Swift Native Mini‑Game Development in the Same‑City App: Architecture, Mixed‑Language Integration, and Performance Optimizations