Enrico La Torre & Renato Dompieri Beltrão
Challenges for omnichannel applications at ALDI: Data distribution and offline capabilities
#1about 4 minutes
The challenge of omnichannel data synchronization in retail
New customer channels like click-and-collect require reliable data synchronization for things like price updates across many different applications and devices.
#2about 3 minutes
Implementing the transactional outbox pattern for reliable updates
A simple push model for data updates is unreliable, so the transactional outbox pattern ensures events are persisted and processed reliably by a background worker.
#3about 6 minutes
Optimizing data distribution with deterministic hashing
To avoid sending large, unnecessary updates, deterministic hash values are calculated for data subsets to notify only the consumers affected by a change.
#4about 5 minutes
Challenges of building an offline-first picking app
A picking app for fulfilling online orders must function reliably despite limited in-store internet, concurrency issues, and large, dynamic product catalogs.
#5about 6 minutes
Using Progressive Web Apps for offline capabilities
Progressive Web Apps (PWAs) provide offline functionality through the Service Worker API, which acts as a network proxy to manage caching and data access.
#6about 4 minutes
Leveraging PWA APIs for a robust offline experience
The Cache API stores assets, IndexedDB holds persistent product data, and the Background Sync API defers updates until connectivity is restored.
#7about 4 minutes
Q&A on implementation details and technology choices
The speakers answer audience questions about the specific technologies used, such as GreenRobot and Cosmos DB, and the rationale behind their architectural decisions.
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