The Road to Serverless: Functions as Applications
summary
Spring Cloud Function proves a concrete path: write business logic as Java java.util.function Function/Consumer/Supplier beans, run them locally on Spring Boot, or repackage to deploy to AWS Lambda and other providers. Demo shows HTTP and RabbitMQ stream adapters working end-to-end, Flux/Mono support for infinite streams, and a classloader-based hot-deploy model plus a thin launcher to swap code at runtime. Code and examples live in the GitHub repo spring-cloud-function and slides show the setup and commands used.
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chapters (15)
- 0:00Introduction to serverless
- 2:24Defining the value line
- 5:30Abstractions and service layers
- 9:14Functions as a service
- 12:10Key features of serverless
- 15:27Pros and cons of serverless
- 17:30Undifferentiated heavy lifting
- 20:46Java support in serverless
- 23:46Spring Cloud Function design
- 29:21Web endpoint demonstration
- 32:12Messaging stream demo
- 37:43Spring Cloud Function goals
- 43:43Reactive programming model
- 47:20AWS Lambda deployment demo
- 50:32Future features and wrap-up








