Transportation

Customer profile

Qidi Public Transport is a leading provider and service operator of smart public transit solutions in China. Its Beijing Public Transport app connects bus and subway systems, offering one-stop services including checking bus arrival times, QR code fare payment, and commute entertainment.

Business challenges

As China's largest and most complex urban bus system by fleet size, vehicle models, and billing complexity, the system handles 1,500 concurrent card-swipe transactions per second during rush hours. With 8 million daily riders, it generates 16 million boarding and alighting records per day.

To handle high concurrency and improve both user experience and development efficiency, Qidi Public Transport needed dynamic update and release capabilities for on-demand deployments and a restructured development workflow.

Solution

Qidi Public Transport (Beijing Public Transport edition) adopted the mPaaS miniapp container to transform multiple business modules within the app into miniapps. It also selected Location-Based Services (LBS) as the map component.

The miniapp container isolates each business module's code, enabling concurrent collaborative development and improving R&D efficiency. Its flexible client-side architecture supports dynamic module updates, enhancing the user experience.

Customer value

Through the intelligent business system, Qidi Public Transport delivers greener, more convenient bus services to Beijing residents and is expanding to cities such as Guangzhou and Haikou.

• The miniapp container enables dynamic business module updates, creating a truly dynamic mobile front end.

• The miniapp container's independent rendering kernel provides a "launch, use, and go" mobile experience.

• Multi-platform support allows write-once code deployment to the company's own app and Alipay.

• Complete code and resource isolation between business modules enables high-concurrency collaborative development and significantly improves R&D efficiency.

Customer profile

Hengdong Logistics Dianhuo is an online freight platform built for logistics industry trends and national policies. Its apps, "Dianhuo Driver" and "Dianhuo Shipper", provide freight matching services for truck drivers and cargo owners on a nationwide platform.

Project background

The project development team was small, consisting of only two core developers and two interns, which limited their capacity for business iteration.

Development needs were urgent with scarce resources. Regulatory policy changes for online freight platforms required embedding an SDK plugin from the regulatory platform.

Solution

The developers were proficient only in Java and Vue.js and could not quickly master a new programming language or native UI component development. Given urgent business requirements, the team replaced the original Uni-App model with mPaaS miniapps, migrating app features and integrating the regulatory SDK plugin.

Technology choice	Pros	Cons
Uni-App	Uses Vue syntax for a fast learning curve and has cross-platform features.	High learning curve for interacting with native plugins. Requires learning Weex.
Weex	Cross-platform	Requires learning a new technology.
Flutter	Good UI rendering performance and cross-platform.	Requires learning a new language.
Android	Can use Java to write business logic. Good performance and stability.	Not cross-platform.
mPaaS	Component-based integration. Easy to start for developers familiar with native development and miniapp syntax. The miniapp part is cross-platform.	Has a certain learning curve.

Customer value

• Rebuilt the app with miniapps: The Dianhuo app now automatically launches a miniapp after the splash screen, calling custom APIs to destroy the splash screen and perform Android permission verification.

• Develop once, reuse multiple times: The web client and miniapps share the same network request framework, allowing existing web business logic to migrate to mPaaS miniapps with minimal adjustments. This avoids rewriting, ensures client consistency, and reduces implementation discrepancies across teams.

• Flexible updates and iterations: After integrating mPaaS, app updates are only needed for native SDK plugin changes. Miniapp feature upgrades deploy seamlessly without user disruption, enabling rapid business iteration.

Customer profile

Shanghai Shentong Metro Group Co., Ltd., reorganized and established in June 2004, manages Shanghai's rail transit investment, construction, and operations. It operates 17 lines including the Chinese mainland's first fully autonomous line (Line 10) and the world's first commercial maglev. The network spans 673 km (including 29 km of maglev line) with 395 stations, the world's largest by route length.

Project background

Shanghai Metro's average daily passenger volume has exceeded 11 million. A significant portion of these passengers comes from other parts of China, especially from the Yangtze River Delta region.

Traditional metro tickets are inconvenient, easily lost, and provide no usage feedback. Shanghai Metro needed a solution to improve passenger travel efficiency and digitize operations management.

Solution

mPaaS: A super app engine that greatly improves app stability, smoothness, and compatibility.

• High-precision "code scanning" technology identical to Alipay's: Tested extensively by Ant Financial's Human-Computer Interaction Lab, the "Metro Daduhui" app optimizes station entry by auto-adjusting screen brightness and tolerating variations in scanning distance and angle, helping users with different phone models enter the station smoothly.

• H5 container with dynamic publishing: The mPaaS H5 container gives "Metro Daduhui" a dynamic mobile front end, isolating each business module's code for concurrent development and dynamic service updates, improving R&D efficiency.

• Mobile API Gateway for high availability: Battle-tested during Alipay's Double 11, Double 12, and Spring Festival Red Envelope events, the Mobile API Gateway provides ultra-low latency, automatic network adaptation, and secure closed-loop payments for code-scanning entry gates.

Customer value

After launching "Metro Daduhui", nearly 7% of passengers switched to code scanning for entry, eliminating long queues.

• Full device compatibility: Tested by hundreds of millions of Alipay users, mPaaS is compatible with all mainstream mobile devices, enabling Shanghai Metro to build a high-quality dynamic super app.

• Dual offline capability for business stability: Dual offline technology separates transaction recording from payment. When the network is unavailable, "Metro Daduhui" records the transaction first and deducts the fare once connectivity resumes. The request-response link includes traffic distribution, in-transit encryption, and signature verification for enhanced data security.

• One-stop travel ecosystem: "Metro Daduhui" integrates Hello Bike and ride-hailing services outside stations, meeting end-to-end travel needs within a single secure app.