Building Rock SOLID Serverless Applications
summary
Shows how to build Azure serverless apps that actually survive faults: uses Azure Functions with constructor DI, a resize‑images function demo that runs and swaps versions, and Cosmos DB change feed for triggers. Uses service bus topics (not queues), an outbox pattern, retries with Polly, and an active-passive replication setup for Service Bus plus Azure Front Door for regional failover. Notes limits: Consumption ≈200 instances, Premium ≈100, advises connection pooling, minimal access rights tradeoff for faster auto‑scale, and durable functions fan‑out for parallel work.
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chapters (18)
- 0:00Intro
- 0:18William Liebenberg
- 6:02Clean Architecture - Resources
- 6:33A simple app - Classic
- 7:43Why Serverless?
- 9:59Azure - Serverless Services
- 10:59My Serverless Services
- 15:22Clean Code Principles
- 24:28Resiliency
- 31:19Service Bus - High Availability
- 34:04SB Active-Active replication
- 34:29SB Active-Passive replication
- 35:17Functions - High Availability
- 36:38Functions - Active-Active
- 38:00Functions Active-Active + Service Bus Active-Passive
- 38:49Service Bus Messaging
- 42:19Scalability
- 51:36Azure useful links
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