Python Asynchronous and Reactive Programming: Mastering asyncio with RxPY: Building High-Performance, Event-Driven Python Apps

By Harold M. Thompson

Kickstart your journey into Python's asynchronous and reactive programming world with this comprehensive, hands-on guide. You'll learn to harness asyncio's event loop and RxPY's powerful observables to build high-performance, event-driven applications that scale with confidence from day one.
What You'll LearnInitialize and manage the asyncio event loop, coroutines, Tasks, and async context managersCreate, subscribe to, and transform RxPY Observables using operators like map, filter, flat_map, and bufferBridge asyncio Futures and RxPY Observables for seamless push-and-pull data flowsImplement error handling strategies: catch, retry, on_error_resume_next, and global exception policiesCoordinate multiple schedulers (AsyncIO, ThreadPool, TestScheduler) for optimized concurrencyApply backpressure techniques to prevent overload in reactive pipelinesIntegrate OpenTelemetry tracing, Prometheus metrics, and Grafana dashboards for observabilityDesign resilient architectures with retries, circuit breakers, and graceful degradation patternsScale horizontally using multiprocessing, Dask, Redis, or Kafka for distributed event processingTest and debug with pytest-asyncio, RxPY's TestScheduler, faulthandler, and structured loggingHands-On ProjectsBuild a real-time chat server that handles thousands of concurrent users with async WebSockets and reactive streamsProcess IoT sensor data, applying filters, windows, and aggregation in a live dashboardDevelop a reactive web scraper that leverages backpressure to avoid overloading target sitesImplement an asynchronous ETL pipeline ingesting data from APIs into a message brokerOrchestrate microservices exchanging events over Redis or Kafka with fault-tolerant supervisorsWho This Book Is ForPython developers looking to move beyond synchronous scriptsBackend engineers designing scalable, event-driven systemsArchitects and devops professionals integrating observability and resilienceStudents and self-learners seeking practical, production-ready examplesTake the first step toward mastering asynchronous and reactive programming in Python. Build high-performance, event-driven applications with clarity and control

• Format: Paperback
• Language: English
• ISBN: B0FPCSCFJW
• ISBN13: 9798263127039
• Release Date: August 2025
• Publisher: Independently Published
• Length: 208 Pages
• Weight: 0.75 lbs.
• Dimensions: 0.4" x 6.7" x 9.6"